Douglas Ray Pedersen July 26, 2016
advertisement
College of Medicine Curriculum Vitae Douglas Ray Pedersen Douglas Ray Pedersen July 26, 2016 I. EDUCATIONAL AND PROFESSIONAL HISTORY Education 1965–1967 1974–1975 1979 B.S. 1983 M.S. 1998 Ph.D. Pre-med, The University of Iowa, Iowa City, IA Engineering, University of Missouri, Columbia, MO Biomedical Engineering, The University of Iowa, Iowa City, IA Mechanical Engineering, The University of Iowa, Iowa City, IA Biomedical Engineering, The University of Iowa, Iowa City, IA Professional Appointments 1979–1994 Research Assistant, College of Medicine, Department of Orthopaedic Surgery, The University of Iowa 1994–2000 Research and Development Project Leader, College of Medicine, Department of Orthopaedic Surgery, The University of Iowa 2000–2002 Research Scientist, College of Medicine, Department of Orthopaedic Surgery, The University of Iowa 2002–2009 Research Engineer, College of Medicine, Department of Orthopaedic Surgery, The University of Iowa 2001– Adjunct Associate Professor, College of Engineering, Department of Biomedical Engineering, The University of Iowa 2002– Graduate College Faculty, The University of Iowa 2009– Research Associate Professor, College of Medicine, Department of Orthopaedics & Rehabilitation, The University of Iowa Honors and Awards 1967 1967 1977 1978 1979 1981 1984 1987 1993 1994 1994 1995 1995 University Merit Scholarship for Freshmen, The University of Iowa Honors Status, The University of Iowa College of Liberal Arts Dean's List, The University of Iowa College of Engineering Dean's List, The University of Iowa College of Engineering Dean's List (4.0), The University of Iowa College of Engineering Otto E. Aufranc Award, The Hip Society Otto E. Aufranc Award, The Hip Society Crenshaw: CAMPBELL'S OPERATIVE ORTHOPAEDICS, ed.7; requested contribution from "An Axisymmetric Model of Acetabular Components in Total Hip Arthroplasty" Frank Stinchfield Award, The Hip Society - James MacKenzie, MD "Areas of Contact and Extent of Gaps with Implantation of Oversized Acetabular Components in Total Hip Arthroplasty" ASTM Committee F-4 Student Paper Competition Award ASME BED Doctoral Student Paper Competition Finalist College of Medicine Melvin Marcus Clinical Research Award. Maxian T, Brown T, Pedersen D, Callaghan J Clinical Research Medical Student Award, American Federation for Clinical Research. Maxian T, Brown T, Pedersen D, Callaghan J College of Medicine 1996 1997 1997 1997 1999 2000 2000 2003 2004 2004 2006 2009 2011 2012 2012 2012 2012 2012 2012 II. Curriculum Vitae Douglas Ray Pedersen Frank Stinchfield Award, The Hip Society - Tina Maxian, MS "Three Dimensional Sliding/Contact Computational Simulation of Acetabular Wear in THA" Frank Stinchfield Award, The Hip Society - Jon D. Hop, MD "An IN VIVO Model of Third Body Wear Contribution of Cable Debris Generation to Accelerated Polyethylene Wear and Acetabular Component Loosening" William H. Harris Award, Orthopaedic Research Society and the William Harris Fellows Albert J. Key Award, Mid-America Orthopaedic Association, Hop J, Pedersen D, Callaghan J John Charnley Award, The Hip Society - John J. Callaghan, MD "Practice Surveillance: A Practical Method to Assess Outcome and to Perform Clinical Research" American Society of Mechanical Engineers, Bioengineering Division Master's-level student paper, Nadzadi M, Pedersen D, Callaghan J, Brown T Clinical Biomechanics Award, American Society of Biomechanics, Nadzadi M, Pedersen D, Yack, H, Callaghan J, Brown T Clinical Biomechanics Research Award, Orthopaedic Research and Education Foundation and the Orthopaedic Research Society, Callaghan JJ, Pedersen DR, Brown TD, Johnston RC: The Clinical Biomechanics of Wear in Total Hip Arthroplasty Guest Lecturer at 4th Chinese Speaking Orthopaedic Society Scientific Congress, September 22–26, 2004, Beijing, China Visiting Scholar/Lecturer (September 28 – October 3, 2004) Joint Prosthesis Technology Research Center, Taipei, Taiwan Chung Yuan Christian University, Chung Li, Taiwan Prof. WB Chen’s Biomedical Engineering Laboratory, Zhong-Yuan University, Zhong-Li City, Taiwan Prof. CK Cheng’s Orthopaedic Biomechanics Laboratory, National Yang Ming University Taipei City, Taiwan Mackay Memorial Hospital Research Center, Taipei City, Taiwan United Orthopaedic Corporation, Xin-Zhu County, Taiwan Pre-Doctoral Young Biomechanics Scientist Award (Hannah Lundberg), ASB Nicolas Andry Award, Association of Bone and Joint Surgeons William H. Harris Award, Orthopaedic Research Society and the William Harris Fellows Clinical Biomechanics Research Award, Orthopaedic Research and Education Foundation and the Orthopaedic Research Society, Brown TD, Elkins, JM, Pedersen DR, Callaghan JJ. Iowa Orthopaedic Society Medical Research Award for Musculoskeletal Research, Elkins, JM, Callaghan JJ, Brown TD, Pedersen DR. American Society of Biomechanics Pre-Doctoral Young Scientist Award Jacob M Elkins, DR Pedersen, JJ Callaghan, TD Brown D.C Spriestersbach Dissertation Prize in mathematics/physical sciences/engineering Jacob M Elkins, “Biomechanics of Failure Modalities in Total Hip Arthroplasty.” Advisors: TD Brown, DR Pedersen, JJ Callaghan E.W. Johnson, Jr. MD Physician in Training Award: Mid-America Orthopaedic Society Ryan K Takenaga, NA Bedard, SS Liu, AL Klaassen, DR Pedersen, JJ Callaghan Keynote Speaker: Components of Finite Element Modeling of Joint Construct Stability 14th Conference of Human Biomechanics at Castle Hotel Třešť November 5-7, 2012 Czech Society of Biomechanics, Institute of Physiology Academy of Sciences of the Czech Republic TEACHING AT THE UNIVERSITY OF IOWA 2 College of Medicine Curriculum Vitae Douglas Ray Pedersen Teaching Activities 1979 Materials Science Laboratory Instructor, The University of Iowa College of Engineering 1983–1990 University of Iowa Exercise Science and Sports Physiology, Develop Biomechanics Teaching Software on Micro-computers 1984– Guest lectures on Gait analysis/seminars on current research projects - Biomedical Engineering, Physical Therapy, and Exercise Science 2002 Honors project mentor: Michael Doty Biomedical Engineering (2-D Clinical Projections from 3-D CT Image Processing) 2003 051:158 Biomechanics of Orthopaedic Devices and Implants, Biomedical Engineering 2003 Honors project mentor: Heather Ralston Biomedical Engineering (Radiographic Natural History of Developmentally Dysplastic and Asymptomatic Hips) 2004 Engineering Honors Seminar 57:001 Mentor. Jessica A. Leinen (The Effect of Pelvic Orientation on Acetabular Volume Measurements) Student Research Projects Orthopaedic Residents 1982 Stephen A. Yoder Total Hip Arthroplasty. A Long-Term Follow-Up 1983 John J. Callaghan Hip Arthrodesis. A Long-Term Follow-Up 1984 Lawernce D. Bell 1987 Thomas A. Malvitz 1989 Richard Berger 1993 Lacy E. Thornburg 1995 George J. Emodi 1996 Kristi L. Weber Steven Madey 1997 Jon D. Hop Performance Characteristics of a 20 MHz Pulsed Ultrasound Doppler Velocimeter for Studies of Microvascular Hemodynamics Closed Reduction for Congenital Dysplasia of the Hip Three-dimensional Carpal Kinematics Three-Dimensional Contact Stress Distributions for Acetabular Dome Fractures: A Re-Fracture Model to Address Site Specificity The Effect of Surgically Induced Parameters on Posterior Cruciate Ligament Function Following Total Knee Arthroplasty Comparison of Acetabular Wear in Primary versus Revision THA An In Vivo Model of Third Body Wear Contribution of Cable Debris Generation to Accelerated Polyethylene Wear and Acetabular Component Loosening 3 College of Medicine Curriculum Vitae Douglas Ray Pedersen 2000 Peter Pardubsky Digital Measurement of Cartilage Tenacin Content 2001 Erin Forrest Long-Term Follow-up of THA 2000–2001 J. A. Morcuende Radiographic Measurements in DDH 2001–2002 Jay Keener Robert Kadoka 25-30 Year Follow-up of Cemented Charnley THA in Patients Under 50 15-Year Follow-up of Agility Total Ankle Replacement (Dr. Alvine’s first 100) 2001 Aimee Klapach Long-term Follow-up of THA in DDH Patients 2001–2003 Karen Evanson Long-term Follow-up of DDH Patients Treated With Pelvic Osteotomies 2002– Robert Kadoka Steve Knecht Geoff Haft Aimee Klapach 2007 Aaron J. Altenburg Radiographic Follow-up of STAR Total Ankle Replacements 15-Year Radiographic and Clinical Follow-up of Alvine Total Ankle Replacements Clinical follow-up of conservatively-treated DDH patients Acetabular Wear in Primary versus Revision THA The Effect of Cable Debris on Acetabular Construct Durability in Cemented Total Hip Arthroplasty at 19 to 20 Year Follow-Up 2008 Ingvild Engesæter 2010-2011 Nicholas A. Bedard 2010 Heather A. Campion 2010-2011 Michael D. Stefl 2010-2011 Matthew J. Teusink 2010-2011 Bryan N. Trumm 2012-13 Mai Nguyen AP Pelvic Digitizing for the Norwegian Arthroplasty Register Cementless THA for the Treatment of Osteonecrosis at 10 Year Follow-Up: Have We Improved? Evaluation of Outcomes of Complex Idiopathic Clubfeet Primary Cementless Acetabular Fixation at Minimum 20-Year Follow-up: Are We Improving Compared to Cemented Fixation? Long-Term Femoral Remodeling in Charnley THA Revision with Cementless Acetabular Components at Minimum 20 Year Follow-Up: Have We Improved? Long-term Soft Tissue Assessment of Ankle Distraction Patients 2013 4 College of Medicine Curriculum Vitae Douglas Ray Pedersen Michael C Willey Rabbit stifle distraction Ryan Takenaga Do We Need Pedometer Data to Differentiate Long-Term Function Following Total Hip Replacement? Radiology Residents 2012-2013 Christopher M Luty Structured reporting of knee injury MRI Biomedical Engineering Graduate Students 1981–1982 James R. Tolbert 1982 Fritz van Krieken 1985–1986 Cheng K. Cheng 1985–1987 Donald Anderson Engineering Analysis of Total Hip Component Design Prediction of Muscle and Joint Loads After Segmental Femur Replacement for Osteosarcoma. Muscle Force Estimations Using Nonlinear Programming Contact Stress Aberrations Following Imprecise Reduction of Intra-Articular Fractures 1986–1988 Kelly J. Baker Biomechanics of Femoral Head Aseptic Necrosis 1991–1993 Douglas J. Adams Adaptive Bone Remodeling in the Functionally Isolated Turkey Ulna 1992–1993 Vincente Ricos-Furio 1993 Janet L. Ronsky 1994 Evelyne M. Hasler 1994–1995 Jiro Sakamoto 1994–1997 Tina A. Maxian 1995–1996 Micahel Bottlang Daniel Fitzpatrick Erica Skaro Effects of Constitutive and Geometric Modelling Simplifications on Stresses Computed in the Turkey Ulna (Universitat Politecnica de Catalunya) Contact Stress Distributions on In-Situ Patellofemoral Joint Cartilage Contact (University of Calgary) Comparison of Theoretically Calculated and Measured Patellofemoral Contact Forces in the Cat Knee Joint (University of Calgary) Computer Assisted Planning of Head-Preserving Surgery in Femoral Head Osteonecrosis Sliding-Distance-Coupled Finite Element Polyethylene Wear in Total Hip Arthroplasty Flow Field Visualization in Cell Culture Mechanostimulus System Three-dimensional Ankle Screw Displacement Axis of Rotation Three-dimensional Wrist Screw Displacement Axis of Rotation 5 College of Medicine 1996-1997 Jason K. Otto 1997 John C. Nieman Curriculum Vitae Douglas Ray Pedersen Characterize the Dynamic Response of a Piezoresistive Contact Stress Sensor Localized Regions of Head Roughening on FE Model Third Body Wear Variability 1997–1998 Christopher Scifert Direct Physical Validation of a Finite Element Model of Total Hip Dislocation 1999–2001 Mark Nadzadi Total Hip Dislocation (in vivo) Kinematics and Finite Element Analysis 2001–2003 Yang David Dai Interactive Computer Modeling of (3-D CT) Acetabular Fracture Reduction 2003–2005 Mary E. Russell 2003–2005 Nicole A. Kallemeyn 2003–2005 Kiran H. Shivanna 2003–2005 Megan P. Rumery 2002–2006 Hannah J. Lundberg Cartilage Contact Pressure Elevations in Dysplastic Hips: A Model of Chronic Overload Articular Cartilage Mechanics in Response to Triaxial Compression: A Poroelastic Finite Element Model Automating Patient-Specific Diarthrodial Joint Contact Model Development A Pose-Based Image Analysis Technique for Measuring Total Disc Replacement Wear Third Body Acceleration of THA Wear 2005–2007 Kimberly S. Mittelholtz Finite Element Analysis of Total Disc Replacement Wear 2005–2007 S.F. Moussavi-Harami Custom Image Analysis Program for Automated Objective Scoring of Histologically Apparent Cartilage Degeneration 2007–2009 Sirisha Tadimalla 2008–2010 Nicholas J. Stroud 2007–2013 Jacob M. Elkins 2009–2011 Noelle F. Klocke Evaluation of posttraumatic changes in cartilage using T1ρ, T2 imaging and dGEMRIC: A line profile based approach Advancements of a Servohydraulic Human Hip Joint Motion Simulator for Experimental Investigation of Hip Joint Impingement/Dislocation MSTP: Surgical-, Patient-, and Implant-Specific Predictors of Failure in Total Hip Arthroplasty – Finite Element Analysis Characterizing Cartilage-Specific T1rho MRI for Clinical Translation and Application 6 College of Medicine 2014David Heckelsmiller Curriculum Vitae Douglas Ray Pedersen Establishing Diagnostic Tools for Post-Traumatic OA In Vivo Biomedical Engineering Undergraduate Students 1982 David Bondi 1992 Micahel Bottlang Hemodynamic Comparison of Interrupted and Continuous Microarteriorraphy Techniques Hyperelastic Constitutive Properties of Polydimethyl Siloxane Cell Culture Membranes 1996 Dawn E. Morrow Prototype Drill-guide for Fibular Graft Placement in Femoral Head Necrosis Sanjay B. Dave Micahel J. Schnieders 1999–2001 Michael Doty Biomedical Engineering: Wear analysis of total hip replacements. 2001 Colleen Lamb Develop computer-based digital follow-up of DDH radiographs 2002 Michael Doty Heather Ralston Crystal Panages Jessica Leinens Andrea Hayes 2007 Nicolas J. Stroud Nick Leymaster Dan Schenck 2012 Samantha Bornmann Paul McKinley Honors project mentor: 2-D Clinical Projections from 3-D CT Image Processing 40-year radiographic natural history of DDH patients and hip joint articular contact stress from standard clinical AP radiographs Clinical follow-up of conservatively-treated DDH patients 3rd Body Wear–LTFU of IMB wire/cable patients for NIH wear grant Radiographic follow-up of Scandinavian Total Ankle Replacements Motorized Tissue Chamber for Use in Confocal Microscopy Modeling Osteotomies to realign tibio-femoral joint Synovial fluid composition affects T1rho relaxation times Fellows and Visiting Scholars 1981–1982 Bertil Romanus 1982 Kenichi Murase 1985 Mark S Vrahas Gait analysis and Foot-floor Barography Finite Element Analysis of Tibial Component Design in Total Knee Arthroplasty In Vivo Passive Moment Measurements in the Human Hip 7 College of Medicine Curriculum Vitae Douglas Ray Pedersen 1986–1987 Joseph Feinberg Alexander L. Bell Modeling of Canine Pelvic Limb Muscular Anatomy Accuracy of Several Hip Joint Center Location Prediction Methods 1992 Steven A. Meyer The Effects of Patella Infera on Patellofemoral Contact Stress 1992 James MacKenzie 1993 Yong Sik Kim Areas of Contact and Extent of Gaps with Implantation of Oversized Acetabular Components in Total Hip Arthroplasty Reamed Surface Topology and Component Seating in Press-Fit Cementless Acetabular Fixation(St. Mary’s Hospital Catholic Medical College, Seoul) 1994 Kathi Teixeira The Effects of Grip on Wrist Motion 1995 Adrienne Spirt The Effects of Wingflap on New Bone Formation in a Turkey Model 1996 Yongde Zhang Flexural Rigidity of Human Fibular Bone Grafts 1996 T. Takatsu The Effect of Surgically Induced Parameters on Posterior Cruciate Ligament Function Following Total Knee Arthrpolasty 2008 Matej Daniel Combining AP Pelvic Digitizing and DEA Hip Stress Calculations 2011 Matej Daniel Fulbright Scholar 2011-12 Andrea Veljkovic TAR Follow-up measurement program 2012 Stefano D'Adamio Vena, Giuseppe Femoral-tibial osteotomies to realign knee compartment loading Femoral-tibial osteotomies to realign knee compartment loading 2013 Salvatore Bisicchia Federica Rosso EOS 3D limb alignment pre/post osteotomy Cartilage condition pre/post osteotomy Medical Students 1988 Steve E. Pierotti Are Leg EMG Profiles Symmetrical? 1996 David A. Anderson Prototype Drillguide for Fibular Graft Placement in Femoral Head Necrosis 1998 Jay C Albright Karen Miller Erin Forest Aimee Klapach 10 Year Follow-Up of Cementless HG-I Acetabular Components Acetabular Wear in Primary versus Revision THA Long-term Follow-up of THA Patients Long-term Follow-up of THA Patients 8 College of Medicine 1999 Brad Heithoff Jesse Templeton Steve Liu Todd Johnston Tad Vernon 2000 Brad Heithoff Curriculum Vitae Douglas Ray Pedersen Long Term Follow-up of Dislocation of the Hip Following Total Hip Arthroplasty 1) Long Term follow-up of Hybrid Revision; 2) Long Term follow-up of RFC Knee; 3) Follow-Up of Femoral Impaction Allografting in Revision Hip Surgery 14-15 Year Follow-up of Matte Finish Iowa Total Hip Component Minimum Five Year Follow-up of Polished Iowa Components 40-year follow-up of DDH patients Steve Liu Todd Johnston Chris McAndrew Long Term Follow-up of Dislocation of the Hip Following Total Hip Arthroplasty Long-Term Follow-up of Total Hip Arthroplasties 1) Long Term Follow-up of Hybrid Revision 2) Long Term Follow-up of RFC Knee 3) Intermediate Term Follow-Up of Femoral Impaction Allografting in Revision Hip Surgery 14-15 Year Follow-up of Matte Finish Iowa Total Hip Component Dislocations at Five Year Follow-up of Polished Iowa Components Total Hip Arthroplasty Wear Rate Distributions are Non-Gaussian 2001 John Gaffey Jesse Templeton Steve Liu Kyle Aliman Gary B Fetzer 15-Year Follow-up of HG Hybrid revision THA 30 Year Follow-up of Cemented Charnley THA 30 Year Follow-up of Cemented Charnley THA Radiographic follow-up of Alvine Total Hip Arthroplasty Long-Term Follow-up of Total Hip Arthroplasties 2002 Jesse Templeton Steve Liu Kyle Aliman Clifford Novak Brian Schroeder 30 Year Follow-up of Cemented Charnley THA 30 Year Follow-up of Cemented Charnley THA Radiographic follow-up of Alvine Total Hip Arthroplasty Constrained liner LTFU – Iowa, Mao, DMOS Closed Reductions for DDH: Juvenile Radiographic Natural History 2003 Andrea Buckwalter Long-term Follow-up of 2000 Primary THAs Gary B. Fetzer Jesse Templeton 2007 Andrea Buckwalter 2012-2013 Tyler J Willman Justin J Greiner Adam A Norton Nic Bedard Results of Charnley Total Hip Arthroplasty With the Use of Improved Femoral Cementing Techniques at a Minimum of Twenty-Five Year Moderately Cross-linked Polyethylene in Total Hip Arthroplasty: Results at Minimum 10-year Follow-up. Pinnacle Total Hip Arthroplasty follow-up (with wear). Metal-on-Metal Total Hip Arthroplasty at Five to Nine Year Follow-up Total ankle replacement and implant alignment Cementless Total Hip Arthroplasty in Patients Fifty Years of Age or Younger: A Minimum Ten-Year Follow-up 9 College of Medicine Curriculum Vitae Douglas Ray Pedersen Other Students 1982 Karen A. Joos Hemodynamic Comparison of Interrupted and Continuous Microarteriorraphy Techniques (Anatomy) 1996-1998 John Rossmann Justin R. Pedersen THA UHMWPE wear measurements (Management Information Systems) LTFU of THA wear and clinical database (Management Information Systems) 1998-1999 Chris McAndrew THA UHMWPE wear measurements (BS Sociology - Northwestern) 2000 Jeff Hauke Ruchika Wahi Jason Wilken Device for Tracking Knee Kinematics of Maneuvers (Physical Therapy) Maneuvers Commonly Responsible for Hip Dislocation (Physical Therapy) 3-D Movements Associated with THA Dislocation (Physical Therapy) 2001 Ruchika Wahi Maneuvers Commonly Responsible for Hip Dislocation (Physical Therapy) 2002 Andrea Buckwalter Mira Estin 2013 Thijmen Struik LTFU all Charnley THA at DMOS (BS Anthropologic Biology - Duke) LTFU Multi-center Depuy scans of Agility TAA radiographs (Iowa City City High) Joint Distraction in Treatment of End-Stage Knee Osteoarthritis (PhD, University Medical Center, Rheumatology & Clinical Immunology, Utrecht, The Netherlands) Other Academic Activities 1981 Implement Orthopaedic Biomechanics Lab connection to campus broadband as first College of Medicine research lab to be networked. 1983 University of Iowa College of Law, Clinical Law Program, Data Presentation for Plaintiff in Extended School Year, Special Education at Grant Wood Area Community College 1984 University of Iowa Department of Physics and Astronomy, Build the Radio-Astronomy Observatory computer operating system 1984 University of Iowa Department of Physical Therapy Education, Build a teaching/research computer operating system 1985–1988 University of Iowa Department of Speech Pathology and Audiology, Computer systems 1983–1990 United States Olympic Committee Scientific Support Program; Develop biomechanical performance analysis programming of male and female long jump and triple jump athletes (USOC and Universal Gym Equipment funding, Prof. James G Hay, Department of Exercise Science, The University of Iowa) 10 College of Medicine Curriculum Vitae Douglas Ray Pedersen 1986–1990 United States Gymnastics Federation; Develop biomechanical performance analysis of men's and women's gymnastic vaulting events (USOC funding, Prof. Yoshiaki Takei, Department of Physical Education, Northern Illinois University) 1988–1990 International Olympics Committee, Summer Olympiad in Seoul, South Korea; Analysis of men and women's vaulting, long jump and triple jump events (USOC funding, Prof. James G Hay, Department of Exercise Science, The University of Iowa) 1985–1990 Iowa Department of Public Instruction: Iowa Articulation Norms Project; Develop standardized testing of Iowa child speech articulation and assess phonetic development, with Prof. Ann Smit, The University of Iowa Wendall Johnson Speech and Hearing Center; Express 900 potential sound descriptors in any combination for 108 nounphotographs (Lotus analysis) 1988–1990 Nebraska Department of Public Instruction: Articulation Norms Project; with Prof. Ann Smit, Chairman of the Kansas State University Department of Speech and Hearing. Define phonetic development of 250 Nebraska children using the Iowa Articulation Norms Test. Perform a comparative analysis (Lotus) for Midwest phonetic definition 1998 Smit-Hand Articulation and Phonology Evaluation (SHAPE, formerly known as the Iowa Articulation Norms Project), Western Psychological Services 2004 Visiting Scholar/Lecturer (September 28 – October 3, 2004) Visiting Scholar Joint Prosthesis Technology Research Center Taipei, Taiwan Visiting Lecturer Chung Yuan Christian University Chung Li, Taiwan Visiting Professor Prof. WB Chen’s Biomedical Engineering Laboratory Zhong-Yuan University Zhong-Li City, Taiwan Visiting Professor Prof. CK Cheng’s Orthopaedic Biomechanics Laboratory National Yang Ming University Taipei City, Taiwan Visiting Scholar Mackay Memorial Hospital Research Center Taipei City, Taiwan Visiting Biomedical Engineer United Orthopaedic Corporation Xin-Zhu County, Taiwan 11 College of Medicine Curriculum Vitae Douglas Ray Pedersen 2012 Keynote Speaker 14th Conference of Human Biomechanics at Castle Hotel Třešť November 5-7, 2012 Czech Society of Biomechanics Institute of Physiology Academy of Sciences of the Czech Republic 2013 Lecturer GE 7T Corporate Representatives Orthopaedic MSK Imaging Research MR Research Facility (MRRF), February 5, 2013 Visiting Lecturer Biopsies and Imaging at ACL Reconstruction Amsterdam Sports Center Site Visit, March 25-26, 2013 Lecturer Establishing Treatments and Diagnostic Tools for Post-Traumatic OA in Vivo ASC Traveling Fellows, June 19, 2013 Lecturer Imaging Acute ACL Rupture Injuries: A Multi-Discipline Process MOON Consortium Meeting, Chicago, IL, July 7, 2013 Lecturer ICTS 7T Neuroimaging Symposium, September 12, 2013 Visiting Professor/Lecturer Imaging Biomarkers of Post-Traumatic Osteoarthritis after ACL Injury: A Multi-Discipline Process Beihang University, November 8, 2013 Lecturer Effects of Head Size on Metal-on-Metal Edge-Loading and Dislocation Chinese Orthopaedic Association/World Orthopaedic Alliance Congress, Beijing, China, November 7-10, 2013 Visiting Professor Special invitation for all opinion leaders to participate in the World Orthopaedic Alliance – Beijing Summit, Beijing, China, November 8, 2013 Lecturer 100 Years of Orthopaedics, University of Iowa Department of Orthopaedics and Rehabilitation, October 11-12, 2013 Lecturer Radiology-IIBI_MSK-Imaging Seminar, November 15, 2013 Lecturer Imaging Biomarkers of Post-traumatic Osteoarthritis after ACL Injury 12 College of Medicine Curriculum Vitae Douglas Ray Pedersen Hawkeye Sports Medicine Symposium, University of Iowa, December 12, 2013 III. SCHOLARSHIP Publications and Presentations 163 Peer-reviewed articles 392 Abstracts 408 Scientific presentations Journal Publications 1. Crowninshield RD, Pedersen DR, Brand RA. A measurement of proximal femur strain with total hip arthroplasty. Journal of Biomechanical Engineering. 1980;102:230–233. 2. Crowninshield RD, Brand RA, Johnston RC, Pedersen DR. An analysis of femoral prosthesis design: The effects on proximal femur loading. The Otto Aufranc Award Paper. The Hip. 1981;111–122. 3. Crowninshield RD, Brand RA, Johnston RC, Pedersen DR. An analysis of collar function and the use of titanium in femoral prostheses. Clinical Orthopaedics & Related Research. 1981;(158):270–277. 4. Brand RA, Crowninshield RD, Wittstock CE, Pedersen DR, Clark CR, van Krieken FM. A model of lower extremity muscular anatomy. Journal of Biomechanical Engineering. 1982;104(4):304– 310. 5. Brand RA, Crowninshield RD, Pedersen DR. Architecture of the periacetabular trabecular bone. Orthopaedics. 1982;5:299–304. 6. Brand RA, Crowninshield RD, Johnston RC, Pedersen DR. Forces on the femoral head during activities of daily living. The Iowa Orthopaedic Journal. 1982;2:43–49. PMCID2328831. 7. Pedersen DR, Crowninshield RD, Brand RA, Johnston RC. An axisymmetric model of acetabular components in total hip arthroplasty. Journal of Biomechanics. 1982;15(4):305–315. 8. Blair WF, Gabel RH, Pedersen DR, Greene ER. A method for programmed, rapid range control advance with the 20 MHz PUDVM. Biomedical Sciences Instrumentation. 1983;19:25–29. 9. Blair WF, Pedersen DR, Joos K, Bondi DR. A hemodynamic comparison of interrupted and continuous microarteriorraphy techniques. Infomedix. 1983;298–303. 10. Crowninshield RD, Pedersen DR, Brand RA, Johnston RC. Analytical support for acetabular component metal backing. The Hip. 1983;207–215. 13 College of Medicine Curriculum Vitae Douglas Ray Pedersen 11. Crowninshield RD, Johnston RC, Brand RA, Pedersen DR. Pathologic ligamentous constraint of the hip. Clinical Orthopaedics & Related Research. 1983;(181):291–297. 12. Crowninshield RD, Brand RA, Pedersen DR. A stress analysis of acetabular reconstruction in protrusio acetabuli. Journal of Bone & Joint Surgery - American Volume. 1983;65(4):495–499. 13. Crowninshield RD, Brand RA, Johnston RC, Pedersen DR, Wilson MA, Tolbert JR. An engineering analysis of total hip component design. Orthopaedic Review XII. 1983;11:33–45. 14. Murase K, Crowninshield RD, Pedersen DR, Chang TS. An analysis of tibial component design in total knee arthroplasty. Journal of Biomechanics. 1983;16(1):13–22. 15. Murase K, Tsukahara S, Saito S, Crowninshield RD, Pedersen DR. A finite element analysis of tibial component design in total knee arthroplasty. Biomechanics. 1983;VII B:1023–1031. 16. Pedersen DR. A finite element analysis of acetabular reconstruction. Iowa City, Iowa: Masters Thesis, Mechanical Engineering, The University of Iowa; 1983. 17. Blair WF, Pedersen DR, Joos K, Bondi D. Interrupted and continuous microarteriorrhaphy techniques: A hemodynamic comparison. Journal of Orthopaedic Research. 1984;2(4):419–424. 18. Brand RA, Pedersen DR. Computer modeling of surgery and a consideration of the mechanical effects of proximal femoral osteotomies. The Otto Aufranc Award Paper. The Hip. St. Louis: C V Mosby Company; 1984;193–210. 19. Bell LD, Blair WF, Pedersen DR, Gabel RH. A hemodynamic evaluation of cuffed microarteriorrhaphy. Microsurgery. 1985;6(2):106–112. 20. Blair WF, Pedersen DR, Joos K, Green ER, Bondi D. Microarteriorrhaphy: Blood flow after wound healing. Microsurgery. 1985;6(2):116–120. 21. Brand RA, Yoder SA, Pedersen DR. Interobserver variability in interpreting radiographic lucencies about total hip reconstructions. Clinical Orthopaedics & Related Research. 1985;(182):237–239. 22. Brown TD, Gabel RH, Pedersen DR, Bell LD, Blair WF. Some characteristics of laminar flow velocity spectra detected by a 20 MHz pulsed ultrasound Doppler. Journal of Biomechanics. 1985;18(12):927–938. 23. Brown TD, Bell LD, Pedersen DR, Blair WF. A three-dimensional computational simulation of some sources of measurement artifact in microvascular pulsed ultrasound Doppler velocimetry. Journal of Biomechanical Engineering. 1985;107(3):274–280. 24. Callaghan JJ, Brand RA, Pedersen DR. Hip arthrodesis. A long-term follow-up. Journal of Bone & Joint Surgery - American Volume. 1985;67(9):1328–1335. 14 College of Medicine Curriculum Vitae Douglas Ray Pedersen 25. van Krieken FM, den Heeten GJ, Pedersen DR, Brand RA, Crowninshield RD. Prediction of muscle and joint loads after segmental femur replacement for osteosarcoma. Clinical Orthopaedics & Related Research. 1985;(198):273–283. 26. Blair WF, Chang L, Pedersen DR, Gabel RH, Bell LD. Hemodynamics after autogenous, interpositional grafting in small arteries. Microsurgery. 1986;7(2):84–86. 27. Brand RA, Pedersen DR, Friederich JA. The sensitivity of muscle force predictions to changes in physiologic cross-sectional area. Journal of Biomechanics. 1986;19(8):589–596. 28. Brand RA, Pedersen DR, Yoder SA. How definition of "loosening" affects the incidence of loose total hip reconstructions. Clinical Orthopaedics & Related Research. 1986;(210):185–191. 29. Yoder SA, Brand RA, Pedersen DR, O'Gorman TW. The effect of acetabular position on total hip component loosening rates. The Iowa Orthopaedic Journal. 1986;6:75–81. PMCID2328927. 30. Pedersen DR, Brand RA, Cheng C, Arora JS. Direct comparison of muscle force predictions using linear and nonlinear programming. Journal of Biomechanical Engineering. 1987;109(3):192–199. 31. Singerman RJ, Pedersen DR, Brown TD. Quantitation of pressure-sensitive film using digital image scanning. Experimental Mechanics. 1987;27:99–105. 32. Brown TD, Anderson DD, Nepola JV, Singerman RJ, Pedersen DR, Brand RA. Contact stress aberrations following imprecise reduction of simple tibial plateau fractures. Journal of Orthopaedic Research. 1988;6(6):851–862. 33. Brown TD, Pedersen DR, Radin EL, Rose RM. Global mechanical consequences of reduced cement/bone coupling rigidity in proximal femoral arthroplasty: a three-dimensional finite element analysis. Journal of Biomechanics. 1988;21(2):115–129. 34. Yoder SA, Brand RA, Pedersen DR, O'Gorman TW. Total hip acetabular component position affects component loosening rates. Clinical Orthopaedics & Related Research. 1988;(228):79– 87. 35. Bell AL, Brand RA, Pedersen DR. Prediction of hip joint centre location from external landmarks. Human Movement Science. 1989;8:3–16. 36. Pedersen DR, Brand RA. (1989) Knee joint moment assumptions affect hip joint force calculations. In: Stein JL, Miller JA Ashton, Pandy MG (Eds.) Issues in the Modelling and Control of Biomechanical Systems, ASME DSC.17(H00550). 37. Bell AL, Pedersen DR, Brand RA. A comparison of the accuracy of several hip center location prediction methods. Journal of Biomechanics. 1990;23(6):617–621. 15 College of Medicine Curriculum Vitae Douglas Ray Pedersen 38. Bell AL, Brand RA, Pedersen DR. A comparison of the external pelvic dimensions of caucasian children and adults. The Pittsburgh Orthopaedic Journal. 1990;1:31–34. 39. Brand RA, Pedersen DR, Davy DT, Heiple KG, Goldberg VM. Hip force calculations and measurements in the same patient. Journal of Biomechanics. 1990;23:727. 40. Brown TD, Pedersen DR, Gray ML, Brand RA, Rubin CT. Toward an identification of mechanical parameters initiating periosteal remodeling: A combined experimental and analytic approach. Journal of Biomechanics. 1990;23(9):893–905. 41. Brown TD, Baker KJ, Pedersen DR, Brand RA. Structural aspects of femoral head osteonecrosis. Proceedings of Mechanics Computing in 1990s and Beyond, The American Society of Civil Engineers Conference. 1990;1:559–563. 42. Pedersen DR, Brown TD, Brand RA. Interstitial bone stress distributions accompanying ingrowth of a screen-like prosthesis anchorage layer. Journal of Biomechanics. 1991;24(12):1131–1142. 43. Pedersen DR, Feinberg JH, Brand RA. A model to predict canine pelvic limb musculoskeletal geometry. Acta Anatomica. 1991;140(2):139–145. 44. Pierotti SE, Brand RA, Gabel RH, Pedersen DR, Clarke WR. Are leg electromyogram profiles symmetrical? Journal of Orthopaedic Research. 1991;9(5):720–729. 45. Brown TD, Pedersen DR, Baker KJ, Brand RA. Mechanical consequences of core drilling and bone-grafting on osteonecrosis of the femoral head. Journal of Bone & Joint Surgery - American Volume. 1993;75(9):1358–1367. 46. Brown TD, Baker KJ, Pedersen DR, Brand RA. Biomechanics of femoral head aseptic necrosis. Biomedical Engineering - Application, Basis, Communication. 1993;5:9–12. 47. Brand RA, Pedersen DR, Davy DT, Kotzar GM, Heiple KG, Goldberg VM. Comparison of hip force calculations and measurements in the same patient. Journal of Arthroplasty. 1994;9(1):45–-51. 48. Hasler E, Herzog W, Ronsky J, Pedersen D, Brown T, Grood E, Butler D. Comparison between theoretical and measured contact forces in the cat patellofemoral joint. Journal of Biomechanics. 1994;27:801. 49. MacKenzie JR, Callaghan JJ, Pedersen DR, Brown TD. Areas of contact and extent of gaps with implantation of oversized acetabular components in total hip arthroplasty. The Frank Stinchfield Award Paper. Clinical Orthopaedics & Related Research. 1994;(298):127–136. 16 College of Medicine Curriculum Vitae Douglas Ray Pedersen 50. Pedersen DR. Rate of in-vivo polyethylene wear for five different acetabular components used over a five to twenty-two year period. The ASTM F-4 Award Paper. ASTM Committee F-4 workshop on Ultra High Molecular Weight Polyethylene Materials. May 1994. 51. Adams DJ, Pedersen DR, Brand RA, Rubin CT, Brown TD. Three-dimensional geometric and structural symmetry of the turkey ulna. Journal of Orthopaedic Research. 1995;13(5):690–699. 52. Callaghan JJ, Pedersen DR, Olejniczak JP, Goetz DD, Johnston RC. Radiographic measurement of wear in 5 cohorts of patients observed for 5 to 22 years. Clinical Orthopaedics & Related Research. 1995;(317):14–18. 53. Callaghan JJ, Kim YS, Brown TD, Pedersen DR, Johnston RC. Concerns and improvements with cementless metal-backed acetabular components. Clinical Orthopaedics & Related Research. 1995;(311):76–84. 54. Fitzpatrick DC, Foels WS, Pedersen DR, Marsh JL, Saltzman CL, Brown TD. An articulated ankle external fixation system that can be aligned with the ankle axis. Iowa Orthopaedic Journal. 1995;15:197–203. PMCID2329049. 55. Kim YS, Brown TD, Pedersen DR, Callaghan JJ. Reamed surface topography and component seating in press-fit cementless acetabular fixation. Journal of Arthroplasty. 1995;10(Suppl):S14– 21. 56. Ronsky JL, Herzog W, Brown TD, Pedersen DR, Grood ES, Butler DL. In vivo quantification of the cat patellofemoral joint contact stresses and areas. Journal of Biomechanics. 1995;28(8):977–983. 57. Callaghan JJ, Kim YS, Pedersen DR, Brown TD. Acetabular preparation and insertion of cementless acetabular components. Operative Techniques in Orthopaedics. 1996;5:325–330. 58. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. 3-Dimensional sliding/contact computational simulation of total hip wear. The Frank Stinchfield Award Paper. Clinical Orthopaedics & Related Research. 1996(333):41–50. 59. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Adaptive finite element modeling of longterm polyethylene wear in total hip arthroplasty. Journal of Orthopaedic Research. 1996;14(4):668–675. 60. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. A sliding-distance-coupled finite element formulation for polyethylene wear in total hip arthroplasty. Journal of Biomechanics. 1996;29(5):687–692. 17 College of Medicine Curriculum Vitae Douglas Ray Pedersen 61. Ricos V, Pedersen DR, Brown TD, Ashman RB, Rubin CT, Brand RA. Effects of anisotropy and material axis registration on computed stress and strain distributions in the turkey ulna. Journal of Biomechanics. 1996;29(2):261–267. 62. Hop JD, Callaghan JJ, Olejniczak JP, Pedersen DR, Brown TD, Johnston RC. Contribution of cable debris generation to accelerated polyethylene wear. The Frank Stinchfield Award Paper. Clinical Orthopaedics & Related Research. 1997(344):20–32. 63. Maxian TA, Brown TD, Pedersen DR, McKellop HA, Lu B, Callaghan JJ. Finite element analysis of acetabular wear. Validation, and backing and fixation effects. Clinical Orthopaedics & Related Research. 1997;344:111–117. 64. Meyer SA, Brown TD, Pedersen DR, Albright JP. Retropatellar contact stress in simulated patella infera. American Journal of Knee Surgery. 1997;10(3):129–138. 65. Pedersen DR, Brand RA, Davy DT. Pelvic muscle and acetabular contact forces during gait. Journal of Biomechanics. 1997;30(9):959–965. 66. Schnieders MJ, Dave SB, Morrow DE, Heiner AD, Pedersen DR, Brown TD. Assessing the accuracy of a prototype drill guide for fibular graft placement in femoral head necrosis. Iowa Orthopaedic Journal. 1997;17:58–63. PMCID2378111. 67. Weber KL, Callaghan JJ, Pedersen DR, Olejniczak JP, Johnston RC. Comparison of acetabular wear in primary versus revision total hip arthroplasty. AAOS Proceedings. 1997;23:23. 68. Brown TD, Bottlang M, Pedersen DR, Banes AJ. Loading paradigms—intentional and unintentional—for cell culture mechanostimulus. American Journal of the Medical Sciences. 1998;316(3):162–168. 69. Heiner AD, Zhang Y, Pedersen DR, Brown TD. Harvest site and loading direction as determinants of the flexural rigidity of human fibular bone Grafts. Journal of Musculoskeletal Research. 1998;2:273–281. 70. Pedersen DR, Brown TD, Hillis SL, Callaghan JJ. Prediction of long-term polyethylene wear in total hip arthroplasty, based on early wear measurements made using digital image analysis. The William Harris Award Paper. Journal of Orthopaedic Research. 1998;16(5):557–563. 71. Pedersen DR, Brown TD, Maxian TA, Callaghan JJ. Temporal and spatial distributions of directional counterface motion at the acetabular bearing surface in total hip arthroplasty. Iowa Orthopaedic Journal. 1998;18:43–53. PMCID2378155. 18 College of Medicine Curriculum Vitae Douglas Ray Pedersen 72. Pedersen DR. MRI-based finite element models of surgically achieved fibular graft placement for osteonecrosis of the femoral head. [Doctor of Philosophy]. Iowa City, Iowa: Biomedical Engineering, Ph. D. Dissertation, The University of Iowa; 1998. 73. Scifert CF, Brown TD, Pedersen DR, Callaghan JJ. A finite element analysis of factors influencing total hip dislocation. Clinical Orthopaedics & Related Research. 1998(355):152–162. 74. Callaghan JJ, Albright JC, Goetz DD, Olejniczak JP, Johnston RC, Pedersen DR. Paper #4 At minimum ten year follow-up, do cementless acetabular components outperform cemented acetabular components? The Journal of Arthroplasty. 1999 February; 14(2)2:244–245. 75. Anderson DA, Schneiders MJ, Heiner AD, Pedersen DR, Brown TD, Brand RA. A surgical guide to accurately place pins or nails within the femoral head. Journal of Musculoskeletal Research. 1999;3:233–237. 76. Callaghan JJ, Johnston RC, Pedersen DR. Practice surveillance: A practical method to assess outcome and to perform clinical research. The John Charnley Award Paper. Clinical Orthopaedics & Related Research. 1999(369):25–38. 77. Callaghan JJ, Kim YS, Pedersen DR, Brown TD. Periprosthetic fractures of the acetabulum. The Orthopaedic Clinics of North America. 1999;30:221–234. 78. Callaghan JJ, Kim YS, Pedersen DR, Brown TD. Fractures of the acetabulum after a total hip arthroplasty. Techniques in Orthopaedics. 1999;14:120–126. 79. Emodi GJ, Callaghan JJ, Pedersen DR, Brown TD. Posterior cruciate ligament function following total knee arthroplasty: The effect of joint line elevation. Iowa Orthopaedic Journal. 1999;19:82–92. PMCID1888617. 80. Pavec M, Brand RA, Pedersen DR, Mavcic B, Kralj-Iglic V, Iglic A. Mathematical modelling of stress in the hip during gait. Journal of Biomechanics. 1999;32(11):1229–1235. 81. Otto JK, Brown TD, Heiner AD, Pedersen DR, Callaghan JJ. Static and dynamic response of a multiplexed-array piezoresistive contact sensor. Experimental Mechanics. 1999;39:317–323. 82. Scifert CF, Brown TD, Pedersen DR, Heiner AD, Callaghan JJ. Development and physical validation of a finite element model of total hip dislocation. Computer Methods in Biomechanics and Biomedical Engineering. 1999;2:139–147. 83. Mavcic B, Antolic V, Brand R, et al. Weight bearing area during gait in normal and dysplastic hips. Pflügers Archiv - European Journal of Physiology. 2000;439(3 Suppl):R213–214. 84. Mavcic B, Antolic V, Brand R, Iglic A, Kralj-Iglic V, Pedersen DR. Peak contact stress in human hip during gait. Pflügers Archiv - European Journal of Physiology. 2000;440(5 Suppl):R177–178. 19 College of Medicine Curriculum Vitae Douglas Ray Pedersen 85. Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. Comparison of cup anteversion and tilt effects on dislocation propensity for small-head-size total hip replacements. Advances in Bioengineering ASME BED. 2000;48:11–12. 86. Brown TD, Pedersen DR, Callaghan JJ. (2001) What design factors influence wear behvior at the articulating surfaces in total hip replacement? In: Wright TM, Goodman SB (Eds.) Implant Wear in Total Joint Replacement: Rosemont, Illinois: American Academy of Orthopaedic Surgeons. 87. Callaghan JJ, Pedersen DR, Brown TD. (2001) How should wear-related implant surveillance be carried out and what methods are indicated to diagnose wear-related problems? In: Wright TM, Goodman SB (Eds.) Implant Wear in Total Joint Replacement: Rosemont, Illinois: American Academy of Orthopaedic Surgeons. 88. Callaghan JJ, Heithoff BE, Goetz DD, Sullivan PM, Pedersen DR, Johnston RC. Prevention of dislocation after hip arthroplasty: Lessons from long-term follow-up. Clinical Orthopaedics & Related Research. 2001;393:157–162. 89. Callaghan JJ, Pedersen DR. (2001) How should wear-related implant surveillance be carried out and what methods are indicated to diagnose wear-related problems? In: Wright TM, Goodman SB (Eds.) Implant Wear In Total Joint Replacement: Clinical and Biologic Issues, Material and Design Considerations. (pp. 24–30) Rosemont, Illinois: American Academy of Orthopaedic Surgeons. 90. Heithoff BE, Callaghan JJ, Goetz DD, Sullivan PM, Pedersen DR, Johnston RC. Dislocation after total hip replacement: A single surgeon's experience. Orthopedic Clinics of North America. 2001;32(4):587–591. 91. Malkani AL, Voor MJ, Rennirt G, Helfet D, Pedersen DR, Brown TD. Increased peak contact stress following incongruent reduction of transverse acetabular fractures: A cadaveric model. The Journal of Trauma. 2001;15(4):704–709. 92. Pedersen DR, Callaghan JJ, Johnston TL, Fetzer GB, Johnston RC. Comparison of femoral head penetration rates between cementless acetabular components with 22 millimeter and 28 millimeter Heads. Journal of Arthroplasty. 2001;16:111–115. 93. Rennirt G, Helfet D, Brown TD, Pedersen DR. Increased peak contact stress following incongruent reduction of transverse acetabular fractures: A cadaveric model. The Journal of Trauma. 2001;15(4):704–709. 20 College of Medicine Curriculum Vitae Douglas Ray Pedersen 94. Scifert CF, Noble PC, Brown TD, Bartz RL, Kadakia N, Sugano N, Johnston RC, Pedersen DR, Callaghan JJ. Experimental and computational simulation of THA dislocation, with long term clinical correlation. Orthopedic Clinics of North America. October 2001;32(4):553–568. 95. Urban JA, Garvin KL, Boese CK, Bryson L, Pedersen DR, Callaghan JJ, Miller RK. Ceramic-onpolyethylene bearing surfaces In cemented total hip arthroplasty: Seventeen to twenty-one-year results. Journal of Bone and Joint Surgery. 2001;83A(11):1688–1694. 96. Ivapec M, Brand RA, Pedersen DR, Mavcic B, Kralj-Iglic V, Iglic A. Erratum to: "Mathematical modelling of stress in the hip during gait" [Journal of Biomechanics. 1999;32(11):1229–1235] Journal of Biomechanics. April 2002;35(4):555. 97. Brown TD, Stewart KJ, Nieman JC, Pedersen DR, Callaghan JJ. Local head roughening as a factor contributing to variability of total hip wear: A finite element analysis. Journal of Biomechanical Engineering. December 2002;124(6):691–698. 98. Callaghan JJ, Brown TD, Pedersen DR, Johnston RC. Choices and compromises in the use of small head sizes (under 32 mm) in total hip arthroplasty. Clinical Orthopaedics & Related Research. Dec 2002;405:144–149. 99. Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. Effects of acetabular component orientation on dislocation propensity for small-head-size total hip arthroplasty. Clinical Biomechanics. 2002;17(1):32–40. 100. Keener JD, Callaghan JJ, Goetz DD, Pedersen DR, Sullivan PM, Johnston RC. Twenty-fiveyears after Charnely total hip arthroplasty in patients less than fifty years old: A concise followup of a previous report. Journal of Bone and Joint Surgery–American Volume. June 2003;85– A(6):1066–1072. 101. Keener JD, Callaghan JJ, Goetz DD, Pederson D, Sullivan P, Johnston RC. Long-term function after charnley total hip arthroplasty. Clinical Orthopaedics & Related Research. 2003 Dec;(417):148–156. 102. Nadzadi ME, Pedersen DR, Yack HJ, Callaghan JJ, Brown TD. Kinematics, kinetics, and finite element analysis of commonplace maneuvers at risk for total hip dislocation. Journal of Biomechanics. 2003 Apr;36(4):577–91. 103. Callaghan JJ, Brown TD, Pedersen DR, Johnston RC. Larger Femoral Heads: A Triumph of hope over reason! Journal of Arthroplasty 2003, 18(3)(Suppl 1):82–84. 104. Callaghan JJ, Pedersen DR, Johnston RC, Brown TD. Clinical biomechanics of wear in total hip arthroplasty. Iowa Orthop Journal. 2003;23:1–12. PMCID1888402. 21 College of Medicine Curriculum Vitae Douglas Ray Pedersen 105. Callaghan JJ, Schroeder B, Morcuende JA, Goetz DD, Sullivan PM, Pedersen DR, Johnston RC. Cementless acetabular fixation in THR perfomred for CDH: Is bone grafting necessary: Journal of Arthroplasty. 2004 Feb;19(2):262. 106. Gaffey JL, Callaghan JJ, Pedersen DR, Goetz DD, Sullivan PM, Johnston RC. Cementless acetabular fixation at fifteen years: A comparison with the same surgeon’s results following acetabular fixation with cement. Journal of Bone and Joint Surgery–American Volume. 2004 Feb; 86-A (2):257–261. 107. Callaghan JJ, Templeton JE, Liu SS, Pedersen DR, Goetz DD, Sullivan PM, Johnston RC. Results of Charnely total hip arthroplasty at a minimum of thirty years. A concise follow-up of a previous report. Journal of Bone and Joint Surgery. 2004 Apr;86-A(4):690–695. 108. Pedersen DR, Lamb CA, Dolan LA, Ralston HM, Weinstein SL, Morcuende JA. Radiographic measurements in developmental dysplasia of the hip: Reliability and validity of a digitizing program. Journal of Pediatric Orthopedics. 2004 Mar/Apr;24(2):156–160. 109. Klapach AS, Callaghan JJ, Miller KA, Goetz DD, Sullivan PM, Pedersen DR, Johnston RC. Total hip arthroplasty with cement and without acetabular bone graft for severe hip dysplasia. A concise follow-up, at a minimum of twenty years, of a previous report. Journal of Bone and Joint Surgery–American Volume. 2005 Feb;87-A(2):280–5. 110. Stewart KJ, Pedersen DR, Callaghan JJ, Brown TD. Implementing capsule representation in a total hip dislocation finite element model. Iowa Orthopaedic Journal. 2004 Jun;24:1–8. PMCID1888426. 111. Pedersen DR, Callaghan JJ, Brown TD. Activity-dependence of the “safe zone” for impingement versus dislocation avoidance. Medical Engineering & Physics. 2005 May;27(4):323–328. 112. Goetz JE, Chung YY, Zimmerman DL, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. Steroid-induced versus cryoinsult-induced femoral head osteonecrosis: Statistical measurement of histologic abnormality focalization. Journal of Musculoskeletal Research. 2005 Dec;9(4)161–172. 113. Lundberg HJ, Stewart KJ, Pedersen DR, Callaghan JJ, Brown TD. Problematic sites of third body embedment in polyethylene for total hip wear acceleration. Journal of Biomechanics. 2006; 39(7):1208–1216. 114. McKinley TO, Rudert MJ, Koos DC, Pedersen DR, Baer TE, Tochigi Y, Brown TD. Contact stress transients during functional loading of ankle step-off incongruities. Journal of Biomechanics. 2006;39(5):885–893. 22 College of Medicine Curriculum Vitae Douglas Ray Pedersen 115. McKinley TO, Rudert MJ, Koos DC, Pedersen DR, Baer TE, Tochigi Y, Brown TD. Stancephase aggregate contact stress and contact stress gradient changes resulting from articular surface stepoffs in human cadaveric ankles. Osteoarthritis and Cartilage, 2006 Feb;14(2):131– 8. 116. Tochigi Y, Suh JS, Amendola A, Pedersen DR, Saltzman CL. Ankle alignment on lateral radiographs: Part 1: Sensitivity of measures to perturbations of ankle positioning. Foot and Ankle International. 2006;27:82–87. PMCID2274959. 117. Bouchard SM, Stewart KJ, Pedersen DR, Callaghan JJ, Brown TD. Design factors influencing performance of constrained acetabular liners: Finite element characterization. Journal of Biomechanics. 2005;39(5):885–893. 118. Anderson DD, Goldsworthy JK, Shivanna K, Grosland NM, Pedersen DR, Thomas TP, Tochigi Y, Marsh JL, Brown TD: Intra-articular contact stress distributions at the ankle throughout stance phase—Patient-specific finite element analysis as a metric of degeneration propensity. Biomechanics and Modeling in Mechanobiology. 2006;5(2–3):82–89. PMCID2194754. 119. Kallemeyn NA, Grosland NM, Pedersen DR, Martin JA, Brown TD. Loading and boundary condition influences in a poroelastic finite element model of cartilage stresses in a triaxial compression bioreactor. Iowa Orthopaedic Journal. 2006;26:5–16. PMCID1888601. 120. Buckwalter AE, Callaghan JJ, Liu SS, Pedersen DR, Goetz DD, Sullivan PM, Leinen JA, Johnston RC. Results of Charnley total hip arthroplasty with use of improved femoral cementing techniques at a minimum of twenty-five years: A concise follow-up of a previous report. Journal of Bone and Joint Surgery–American Volume. 2006 Jul;88(7):1481–5. 121. Lundberg HJ, Stewart KJ, Pedersen DR, Callaghan JJ, Brown TD. Non-identical and outlier duty cycles as factors accelerating UHMWPE wear in THA: A finite element exploration. Journal of Orthopaedic Research. 2007 Jan;25(1)30–43. 122. McKinley TO, Rudert MJ, Tochigi Y, Pedersen DR, Koos DC, Baer TE, Brown TD. Incongruitydependent changes of contact stress rates in human cadaveric ankles. Journal of Orthopaedic Trauma. 2006 Nov/Dec;20(10):732–738. 123. McKinley TO, Rudert MJ, Tochigi Y, Pedersen DR, Koos DC, Baer TE, Brown TD. Cambios dependientes de incongruencia de grados de estres de contacto en tobillos cadavericos humanos. Journal of Orthopaedic Trauma. 2006 Nov/Dec;20(10):747 23 College of Medicine Curriculum Vitae Douglas Ray Pedersen 124. Russell ME, Shivanna KH, Grosland NM, Pedersen DR. Cartilage contact pressure elevations in dysplastic hips: A chronic overload model. Journal of Orthopaedic Surgery and Research 2006:1(1):79–87 (Mandarin) and 169–177 (English). PMC1636031. 125. Lundberg HJ, Pedersen DR, Baer TE, Muste MV, Callaghan JJ, Brown TD. Effects of implant design parameters on fluid convection, potentiating 3rd body debris ingress into the bearing surface during THA impingement/subluxation. Journal of Biomechanics 2007;40(8):1676–1685. PMCID1945119. 126. Yehyawi TM, Callaghan JJ, Pedersen DR, O'Rourke MR, Liu SS. Variances in sagittal femoral shaft bowing in patients undergoing TKA. Clinical Orthopaedics & Related Research. 2007 Nov;464:99–104. 127. Beecher BR, Martin JA, Pedersen DR, Heiner AD, Buckwalter JA. Antioxidants block cyclic loading induced chondrocyte death. Iowa Orthopaedic Journal. 2007;27:1-8. PMCID2150661. 128. Kallemeyn NA, Grosland NM, Magnotta VA, Martin JA, Pedersen DR. Arthroscopic lens distortion correction applied to dynamic cartilage loading. Iowa Orthopaedic Journal. 2007;27:52-57. PMCID2150644. 129. Lundberg HJ, Liu SS, Callaghan JJ, Pedersen DR, O’Rourke MR, Goetz DD, Vittetoe D, John Clohisy JC, Brown TD. Association of 3rd body embedment with rim damage in retrieved acetabular liners. Clinical Orthopaedics & Related Research. 2007 Dec;465:133–9. 130. Thedens DR, Martin JA, Pedersen DR. (2007) Magnetic resonance imaging of cartilage: New imaging and clinical approaches. In Buckwalter JA, Lotz M, Stoltz JF (Eds.) OA, Inflammation and Degradation: A Continuum, Volume 70: Biomedical and Health Research, pp. 239–253. Fairfax, VA: IOS Press. 131. Shivanna K, Grosland N, Russell M, Pedersen D. Diarthrodial joint contact models: Finite element model development of the human hip. Engineering with Computers. 2008;24(2):155– 163. 132. Goetz JE, Derrick TR, Pedersen DR, Robinson DA, Conzemius MG, Baer TE, Brown TD. Hip joint contact force in the emu (Dromaius novaehollandiae) during normal level walking. Journal of Biomechanics. 2008;41(4):770–778. PMC2291359. 133. Heiner AD, Lundberg HJ, Baer TE, Pedersen DR, Callaghan JJ, Brown TD. Effects of episodic subluxation events on third body ingress and embedment in the THA bearing surface. Journal of Biomechanics. 2008;41(10):2090–2096. PMC2572990. 24 College of Medicine Curriculum Vitae Douglas Ray Pedersen 134. Goetz JE, Pedersen DR, Robinson DA, Conzemius MG, Baer TE, Brown TD. The apparent critical isotherm for cryoinsult-induced osteonecrotic lesions in emu femoral heads. Journal of Biomechanics. 2008;41(10):2197–205. PMC2612542. 135. Tochigi Y, Rudert MJ, McKinley TO, Pedersen DR, Brown TD. Correlation of dynamic cartilage contact stress aberrations with severity of instability in ankle incongruity. Journal of Orthopaedic Research. 2008;26(9):1186–1193. PMC2964929. 136. Goreham-Voss CM, McCabe DJ, Rudert MJ, Martin JA, Pedersen DR, Brown TD. Spatial correlations between local impact stress and cell death distributions. Osteoarthritis and Cartilage. 2008;16(Supp 4):S65–66. 137. Rumery MP, Pedersen DR, Mendoza SA, Siepe C, Mayer HM, Brown TD. A pose-based image analysis technique for measuring in vivo wear of total disc replacements. Computer Methods in Biomechanics and Biomedical Engineering. Manuscript ID: GCMB-2007-0059. (Accepted) 138. Moussavi-Harami SF, Pedersen DR, Martin JA, Hillis SL, Brown TD. Automated objective scoring of histologically apparent cartilage degeneration using a custom image analysis program. Journal of Orthopaedic Research. 2009;27(4):522–528. PMC Journal – In Process. 139. Brown TD, Lundberg HJ, Pedersen DR, Callaghan JJ. 2009 Nicolas Andry Award: Clinical biomechanics of third body acceleration of total hip wear. Clinical Orthopaedics & Related Research. 2009; 467(7):1885–1897. PMC2690766. 140. Altenburg AJ, Callaghan JJ, Yehyawi TM, Pedersen DR, Liu SS, Leinen JA, Dahl KA, Goetz DD, Brown TD, Johnston RC. The effect of cable debris on acetabular construction durability in cemented total hip arthroplasty at 19 to 20 year follow-up. Journal of Bone and Joint Surgery Am. 2009 Jul;91(7):1664–1670. PMC2702252. 141. Hartmann JM, Rudert MJ, Pedersen DR, Baer TE, Goreham-Voss CM, Brown TD. Compliancedependent load allocation between sensing versus non-sensing portions of a sheet-array contact stress sensor. Iowa Orthopaedic Journal. 2009;29:43–47. PMC2723691. 142. Kang L, Baer TE, Rudert MJ, Pedersen DR, Brown TD. Traveling-load calibration of grid-array transient contact stress sensors. Journal of Biomechanics. 2010;43(11):2237–2240. PMC2914204. 143. Ramakrishnan P, Hecht BA, Pedersen DR, Lavery MR, Maynard J, Buckwalter JA, Martin JA. Oxidant conditioning protects cartilage from mechanically induced damage. Journal of Orthopaedic Research. 2010 Jul;28(7):914–20. 25 College of Medicine Curriculum Vitae Douglas Ray Pedersen 144. Debevec H, Pedersen DR, Iglič A, Daniel M. One-legged stance as a representative static body position for calculation of hip contact stress distribution in clinical studies. Journal of Applied Biomechanics. 2010 26(4):522–525. 145. Elkins JM, O’Brien MK, Stroud NJ, Pedersen DR, Callaghan JJ, Brown TD. Hard-on-hard total hip impingement causes extreme contact stress concentrations. Clinical Orthopaedics & Related Research. 2011;469:454–463. 146. Goetz JE, Robinson DA, Pedersen DR, Conzemius MG, Brown TD. Cryoinsult parameter effects on the histologically-apparent volume of experimentally-induced osteonecroticlesions. Journal of Orthopaedic Research. 2011;29(6):931–937. PMC3082588. 147. Pedersen DR, Klocke NF, Thedens DR, Martin JA, Williams GN, Amendola A. Integrating cartilage-specific T1rho MRI into knee clinic diagnostic imaging. Iowa Orthopaedic Journal. 2011;31:99–109. 148. Elkins JM, Stroud NJ, Rudert MJ, Tochigi Y, Pedersen DR, Ellis BJ, Callaghan JJ, Weiss JA, Brown TD. The capsule’s contribution to total hip construct stability—A finite element analysis. Journal of Orthopaedic Research. William H. Harris Award Winner. 2011; 29(11) 1642-1648. NIHMS287355. 149. Ramakrishnan PS, Pedersen DR, Stroud NJ, McCabe DJ, Martin JA. Repeated measurement of mechanical properties in viable osteochondral explants following a single blunt impact injury. Proceedings of the Institution of Mechanical Engineers. Part H. Journal of Engineering in Medicine. 2011 (E-pub) DOI: 10.1177/0954411911413063 150. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Fracture propagation propensity of ceramic liners during impingement—A finite element exploration. Journal of Arthroplasty. 2012; 27(4): 520526. (PMID 21855277). 151. Elkins JM, Kruger KM, Pedersen DR, Callaghan JJ, Brown TD. Edge-loading severity as a function of cup lip radius in metal-on-metal total hips—A finite element analysis. Journal of Orthopaedic Research 2012 30(2) 169-177 (PMID 21812025). 152. Ingvild Øvstebø Engesæter, Lene Bjerke Laborie, Trude Gundersen Lehmann, Francesco Sera, Jonas Fevang, Douglas Pedersen, José Morcuende, Stein Atle Lie, Lars Birger Engesæter, Karen Rosendahl. Radiological findings for hip dysplasia at skeletal maturity. Validation of digital and manual measurement techniques. Skeletal Radiology 2012 41(7):775-785. 26 College of Medicine Curriculum Vitae Douglas Ray Pedersen 153. Noelle F. Klocke. Characterizing Cartilage-Specific T1 MRI for Clinical Translation and Application. Master’s Thesis in Biomedical Engineering, the University of Iowa. D. R. Pedersen and T. D. Brown, Advisors. July 2011. 154. Jacob M. Elkins. Biomechanics of Failure Modalities in Total Hip Arthroplasty. PhD Dissertation in Biomedical Engineering, the University of Iowa MSTP. T.D. Brown, J.J. Callaghan, D.R. Pedersen, Advisors. January 2012. 155. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Bone-on-Bone vs. Implant Impingement in Large Femoral Diameter Total Hips. Iowa Orthopaedic Journal 2012; 32:17-21 156. Elkins JM, Pedersen DR, Yack HJ, Callaghan JJ, Brown TD. Morbid Obesity May Increase Dislocation in Total Hip Patients: A Biomechanical Analysis. Clinical Orthopaedics and Related Research 2012; Aug 21 [Epub ahead of print]. PMID: 22907474 157. Annunziato A, Klocke NF, Thedens DR, Williams GL, Martin JA, Pedersen DR. Observations of Early Injury Response after ACL-Rupture Using and Affecting Concurrent Three-Sequence Quantitative MRI. ICRS Special Focus: Importance of advanced MR imaging techniques in cartilage repair evaluations, 15:35-36, 2012. 158. Teusink MJ, Callaghan JJ, Warth LC, Goetz DD, Pedersen DR, Johnston RC. Cementless Acetabular Fixation in Patients 50 Years and Younger at 10 to 18 Years of Follow-up. The Journal of Arthroplasty, 2012;(27)7:1316-1323. doi:10.1016/j.arth.2011.10.020 159. Stefl MD, Callaghan JJ, Liu SS, Pedersen DR, Goetz DD, Johnston RC. Primary Cementless Acetabular Fixation at a Minimum of Twenty Years of Follow-up. A concise Update of a Previous Report. Journal of Bone and Joint Surgery 2012;94:234-9. 160. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Do Obesity and/or Stripe Wear Increase Ceramic Liner Fracture Risk? An XFEM Analysis. 2012 Hip Society Proceedings (Dr. Stuart Goodman, Guest Editor): Clinical Orthopaedics and Related Research. 2012 (CORR-D-1200212R1 in-press) 161. Klocke NF, Annunziato A, Thedens DR, Williams GL, Luty CM, Martin JA, Pedersen DR. Comparison of T1, dGEMRIC, and Quantitative T2 MRI in Preoperative ACL Rupture Patients. Academic Radiology 2013; 20:99-107. 27 College of Medicine Curriculum Vitae Douglas Ray Pedersen 162. Rudert MJ, Ellis BJ, Henak C, Pedersen DR, Weiss JA, Brown TD. (Design Innovation Paper), A New Sensor for Measurement of Dynamic Contact Stress in the Hip. Journal of Biomechanical Engineering (Accepted 12/12/12 with minor revisions). 163. Brown TD, Elkins JM, Pedersen DR, Callaghan JJ. Impingement in Total Hip Arthroplasty: Mechanisms and Consequences. The 2012 Orthopaedic Research Education Foundation OREF Clinical Research Award. JOR 2012 (in preparation). 164. Pedersen DR, Goetz JE, Kurriger GL, Martin JA. Comparative digital cartilage histology for human and common osteoarthritis models. Orthopedic Research and Reviews, 2013;5:13-20. PMC3899351 165. Brown TD, Elkins JM, Pedersen DR, Callaghan JJ. Impingement and dislocation in total hip arthroplasty: mechanisms and consequences. Iowa Orthop J. 2014;34:1-15. PMC4127709 166. Papalia R, Torre G, Vasta S, Zampogna B, Pedersen DR, Denaro V, Amendola A. Bone bruises in anterior cruciate ligament injured knee and long-term outcomes. A review of the evidence. J Sports Med. 2015 Feb 18;6:37-48. PMC4340462 167. Nguyen MP, Pedersen DR, Gao Y, Saltzman CL, Amendola A. J Bone Joint Surg Am. 2015 Apr 1;97(7):590-6. Abstracts 1. Crowninshield RD, Brand RA, Johnston RC, Pedersen DR. A Comparison of Steel and Titanium Femoral Components in Total Hip Arthroplasty. Paper presented at: Transactions of the 26th Annual Meeting of the Orthopaedic Research Society; February, 1980; Atlanta, Georgia. 2. Crowninshield RD, Brand RA, Johnston RC, Pedersen DR. A Comparison of Steel and Titanium Femoral Components in Total Hip Arthroplasty. Paper presented at: Proceedings of the Fifth Annual College of Medicine Research Day; April 17–18, 1980; The University of Iowa Hospitals, Iowa City, Iowa. 3. Crowninshield RD, Brand RA, Johnston RC, Pedersen DR. An Analysis of Femoral Prosthesis Design - The Effects on Proximal Femur Loading. Paper presented at: Proceedings of the Ninth Open Scientific Meeting of the Hip Society; February, 1981; Las Vegas, Nevada. 28 College of Medicine 4. Curriculum Vitae Douglas Ray Pedersen Pedersen DR, Crowninshield RD, Brand RA. An Analysis of Acetabular Component Design. Paper presented at: Transactions of the 27th Annual Meeting of the Orthopaedic Research Society; February, 1981; Las Vegas, Nevada. 5. Pedersen DR, Crowninshield RD, Brand RA. An Analysis of Acetabular Component Design. Paper presented at: Proceedings of the Sixth Annual College of Medicine Research Day; April, 1981; The University of Iowa, Iowa City, Iowa. 6. Brand RA, Crowninshield RD, Pedersen DR. Architecture of the Periacetabular Trabecular Bone. Paper presented at: Transactions of the 28th Annual Meeting of the Orthopaedic Research Society; January 19–21, 1982; New Orleans, Louisiana. 7. Brand RA, Crowninshield RD, Pedersen DR, Gabel RH. Hip Forces in Activities of Daily Living. Paper presented at: Proceedings of the Seventh Annual College of Medicine Research Day; April, 1982; The University of Iowa, Iowa City, Iowa. 8. Crowninshield RD, Murase K, Pedersen DR. An Analysis of Tibial Component Design in Total Knee Arthroplasty. Paper presented at: Transactions of the 28th Annual Meeting of the Orthopaedic Research Society; January 19–21, 1982; New Orleans, Louisiana. 9. Murase K, Tsukahara S, Saito S, Crowninshield RD, Pedersen DR. A Finite Element Analysis of Tibial Component Design in Total Knee Arthroplasty. Paper presented at: Proceedings of the 8th International Congress of Biomechanics, 1982; Nagoya, Japan. 10. Blair WF, Gabel RH, Pedersen DR, Greene ER. A Method for Programmed, Rapid Range Control Advance with the 20 MHz PUDVM. Paper presented at: Proceedings of the Rocky Mountain Bioengineering Symposium; April, 1983; Rochester, Minnesota. 11. Blair WF, Pedersen DR. The 20MHz Pulsed Ultrasonic Doppler Velocity Meter: A Method for Assessing Flow in Small Vessels. Paper presented at: Proceedings of the Seventh Annual Conference of the American Society of Biomechanics; September 28–30, 1983; Rochester, Minnesota. 12. Blair WF, Pedersen DR, Joos K, Bondi D. A Hemodynamic Comparison of Interrupted and Continuous Microarteriorraphy Techniques. Paper presented at: Proceedings of the American Association of Hand Surgery; October 30, 1983; Dallas, Texas. 13. Brand RA, van Krieken FM, Pedersen DR, Crowninshield RD. Prediction of Muscle and Joint Loads After Segmental Femur Replacement for Osteosarcoma. Paper presented at: Proceedings of the Eighth Annual College of Medicine Research Day; April 21–22, 1983; University of Iowa, Iowa City, Iowa. 29 College of Medicine Curriculum Vitae Douglas Ray Pedersen 14. Crowninshield RD, Pedersen DR, Brand RA, Johnston RC. Analytical Support for Acetabular Component Metal Backing. Paper presented at: Proceedings of the Eleventh Open Scientific Meeting of the Hip Society; March 9, 1983; Anaheim, California. 15. Crowninshield RD, Johnston RC, Brand RA, Pedersen DR, Wilson MA, Tolbert JR. An Engineering Analysis of Total Hip Component Design. Paper presented at: Proceedings of the 50th Annual Meeting of the American Academy of Orthopaedic Surgeons; March 10–15, 1983; Anaheim, California. 16. Pedersen DR, Brand RA. Computer Modeling of Proximal Femur Osteotomies. Paper presented at: Proceedings of the Seventh Annual Conference of the American Society of Biomechanics; September 28–30, 1983; Rochester, Minnesota. 17. van Krieken FM, Pedersen DR, Brand RA, Crowninshield RD. Hip and Knee Muscle and Joint Force Predictions in Simulated Tumor Resections. Paper presented at: Transactions of the 29th Annual Meeting of the Orthopaedic Research Society; March 8–10, 1983; Anaheim, California. 18. Brand RA, Pedersen DR. Computer Modeling of Surgery and a Consideration of the Mechanical Effects of Proximal Femoral Osteotomies. Paper presented at: Proceedings of the Twelfth Open Scientific Meeting of The Hip Society; February, 1984; Atlanta, Georgia. 19. Brand RA, Pedersen DR. Computer Modeling of Proximal Femoral Osteotomies. Paper presented at: Proceedings of the Ninth Annual College of Medicine Research Day; April 26–27, 1984; The University of Iowa, Iowa City, Iowa. 20. Brand RA, Pedersen DR. Computer Modeling of Surgery and a Consideration of the Mechanical Effects of Proximal Femoral Osteotomies. Paper presented at: Proceedings of the Fourth Meeting of the European Society of Biomechanics; September 23–26, 1984; Davos, Switzerland. 21. Brown TD, Gabel RH, Pedersen DR, Bell LD, Blair WF. Some Characteristics of Laminar Flow Velocity Spectra Detected by a 20 MHz Pulsed Ultrasound Doppler. Paper presented at: Proceedings of the Eighth Annual Meeting of the American Society of Biomechanics; October 3–5, 1984; Tucson, Arizona. 22. Pedersen DR, Brand RA. Changes in Three-Dimensional Muscle Geometry as a Result of Femoral Intertrochanteric Osteotomies. Paper presented at: Transactions of the 30th Annual Meeting of the Orthopaedic Research Society; February 6–9, 1984; Atlanta, Georgia. 30 College of Medicine Curriculum Vitae Douglas Ray Pedersen 23. Pedersen DR, Brown TD, Singerman RJ. Quantitation of Fuji Prescale Film Pressures Using Digital Image Scanning. Paper presented at: Proceedings of the Eighth Annual Meeting of the American Society of Biomechanics; October 3–5, 1984; Tucson, Arizona. 24. Brown TD, Gabel RH, Bell LD, Pedersen DR, Blair WF. Performance Characteristics of a 20 MHz Pulsed Ultrasound Doppler Velocimeter for Studies of Microvascular Hemodynamics. Paper presented at: Proceedings of the American Society of Mechanical Engineers Biomechanics Symposium; June 24–26, 1985; Albuquerque, New Mexico. 25. Brown TD, Pedersen DR, Radin EL, Rose RM. Mechanical Consequences of Fibrous Membrane Formation at the Bone/Cement Interface in Proximal Femoral Arthroplasty. Paper presented at: Proceedings of the Ninth Annual Meeting of the American Society of Biomechanics; October 2–4, 1985; Ann Arbor, Michigan. 26. Callaghan JJ, Brand RA, Pedersen DR. Hip Arthrodesis. A Long-Term Follow-Up. Paper presented at: Proceedings of the 52nd Annual Meeting of the American Academy of Orthopaedic Surgeons; January 26, 1985; Las Vegas, Nevada. 27. Singerman RJ, Pedersen DR, Brown TD. Quantitation of Fuji Prescale Film Pressures Using Digital Image Scanning. Paper presented at: Proceedings of the College of Medicine Research Day X; May 9–10, 1985; The University of Iowa , Iowa City, Iowa. 28. Brown TD, Pedersen DR, Radin EL, Rose RM. Global Mechanical Consequences of Bone/Cement Interface Degradation in Proximal Femoral Arthroplasty. Paper presented at: Transactions of the 32nd Annual Meeting of the Orthopaedic Research Society; February 17– 20, 1986; New Orleans, Louisiana. 29. Brown TD, Pedersen DR, Singerman RJ. Load Transmission Through the Proximal Femur in Early Childhood. Paper presented at: Transactions of the 32nd Annual Meeting of the Orthopaedic Research Society; February 17–20, 1986; New Orleans, Louisiana. 30. Brown TD, Pedersen DR, Singerman RJ. Load Transmission Through the Proximal Femur in Early Childhood. Paper presented at: Orthopaedic Transactions, 1986. 31. Pedersen DR, Cheng CK, Brand RA. Muscle Force Estimations Using Nonlinear Programming. Paper presented at: Transactions of the 32nd Annual Meeting of the Orthopaedic Research Society; February 17–20, 1986; New Orleans, Louisiana. 32. Pedersen DR, Anderson DD, Singerman RJ, Brown TD. Prescale Film Pressure Quantification. Paper presented at: Proceedings of the 98th Session of the Iowa Academy of Science; April 25– 26, 1986; Wartburg College, Waverly, Iowa. 31 College of Medicine Curriculum Vitae Douglas Ray Pedersen 33. Vrahas MS, Brown TD, Andrews JG, Brand RA, Pedersen DR. In-vivo Measurements of Passive Moments of the Human Hip. Paper presented at: Proceedings of the Combined meeting of the North American Congress on Biomechanics, the Tenth Annual Conference of The American Society of Biomechanics, and the Fourth Biannual Conference of the Canadian Society for Biomechanics; August 25–27, 1986; Montreal, Quebec, Canada. 34. Bell AL, Brand RA, Pedersen DR. Prediction of Hip Joint Center Location from External Landmarks. Paper presented at: Proceedings of the Eleventh Annual Conference of the American Society Biomechanics; September, 1987; University of California at Davis. 35. Brown TD, Anderson DD, Nepola JV, Singerman RJ, Pedersen DR, Brand RA. Contact Stress Aberrations Following Imprecise Reduction of Intra-Articular Fractures. Paper presented at: Transactions of the 33rd Annual Meeting of the Orthopaedic Research Society; January 19–22, 1987; San Francisco, California. 36. Feinberg JH, Pedersen DR, Brand RA. A Model to Predict the Muscular Anatomy of the Pelvic Limbs of the Dog. Paper presented at: Proceedings of the Eleventh Annual Conference of the American Society Biomechanics; September, 1987; University of California at Davis. 37. Vrahas MS, Brown TD, Andrews JG, Brand RA, Pedersen DR. In Vivo Passive Moment Measurements in the Human Hip. Paper presented at: Transactions of the 33rd Annual Meeting of the Orthopaedic Research Society; January 19–22, 1987; San Francisco, California. 38. Vrahas MS, Brown TD, Andrews JG, Brand RA, Pedersen DR. In Vivo Passive Moment Measurements in the Human Hip. Paper presented at: Proceedings of the Twelfth Annual College of Medicine Research Day; April 23–24, 1987; The University of Iowa, Iowa City, Iowa. 39. Bell AL, Brand RA, Pedersen DR. Prediction of Hip Joint Center Location from External Landmarks. Paper presented at: Transactions of the 34th Annual Meeting of the Orthopaedic Research Society; February 1–4, 1988; Atlanta, Georgia. 40. Brown TD, Rubin CT, Brand RA, Pedersen DR, Gray ML. Stress/Strain Field Correlations with New Periosteal Bone Deposition Patterns in the Functionally Isolated Turkey Ulna. Paper presented at: Proceedings of the Sixth Meeting of the Society of Biomechanics; September 11– 15, 1988; University of Bristol, United Kingdom. 41. Feinberg JH, Pedersen DR, Brand RA. A Model to Predict the Muscular Anatomy of the Pelvic Limbs of the Dog. Paper presented at: Transactions of the 34th Annual Meeting of the Orthopaedic Research Society; February 1–4, 1988; Atlanta, Georgia. 32 College of Medicine Curriculum Vitae Douglas Ray Pedersen 42. Feinberg JH, Pedersen DR, Brand RA. A Model to Predict the Muscular Anatomy of the Pelvic Limbs of the Dog. Paper presented at: Proceedings of the College of Medicine Research Day XIII; April, 1988; The University of Iowa, Iowa City, Iowa. 43. Pedersen DR, Brown TD, Gray ML, Rubin CT, Brand RA. A Finite Element Analysis of Strain Distributions in the Functionally Isolated Turkey Ulna. Paper presented at: Transactions of the 34th Annual Meeting of the Orthopaedic Research Society; February 1–4, 1988; Atlanta, Georgia. 44. Pedersen DR, Feinberg JH, Brand RA. Modeling of Canine Pelvic Limb Muscular Anatomy. Paper presented at: Proceedings of the 100th Meeting of the Iowa Academy of Sciences; April, 1988; Ames, Iowa. 45. Bell AL, Brand RA, Pedersen DR. Prediction of Hip Joint Center Location from External Landmarks. Paper presented at: Proceedings of the College of Medicine Research Day XIII; April, 19, 1989; The University of Iowa, Iowa City, Iowa. 46. Bell AL, Pedersen DR, Brand RA. A Comparison of the Accuracy of Several Hip Joint Center Location Prediction Methods. Paper presented at: Transactions of the 35th Annual Meeting of the Orthopaedic Research Society; February 6–9, 1989; Las Vegas, Nevada. 47. Brand RA, Pedersen DR, Davy DT, Heiple KG, Goldberg VM. Comparison of Hip Joint Force Calculations and Measurements in the Same Patient. Paper presented at: Transactions of the 35th Annual Meeting of the Orthopaedic Research Society; February 6–9, 1989; Las Vegas, Nevada. 48. Brand RA, Pedersen DR, Davy DT, Heiple KG, Goldberg VM. Hip Force Calculations and Measurements in the Same Patient. Paper presented at: Proceedings of the 13th Annual Meeting of the American Society of Biomechanics; August 23–25, 1989; University of Vermont, Burlington, Vermont. 49. Pedersen DR, Brand RA. Knee Joint Moment Assumptions Affect Hip Joint Force Calculations. Paper presented at: Proceedings of the 1989 Winter Annual Meeting of the American Society of Mechanical Engineers; December 10–15, 1989; San Francisco, California. 50. Pierotti SE, Pedersen DR, Brand RA. Are Leg EMG Profiles Symmetrical? Paper presented at: Transactions of the 35th Annual Meeting of the Orthopaedic Research Society; February 6–9, 1989; Las Vegas, Nevada. 33 College of Medicine Curriculum Vitae Douglas Ray Pedersen 51. Brand RA, Pedersen DR, Johnston RC. Hip Forces Resulting from Altered Hip Joint Center Location - Revisited. Paper presented at: Proceedings of the The Hip Society 1990 Summer Meeting; September 21–22, 1990; Scottsdale, Arizona. 52. Brown TD, Rubin CT, Brand RA, Pedersen DR. A Complementary Experimental/Analytic Model to Explore Bone Remodeling. Paper presented at: Proceedings of the European Society of Biomechanics, Biomechanics of Fracture Healing Workshop; July 12–14, 1990; Reisensurg Castle and the University of Ulm, Ulm, West Germany. 53. Pedersen DR, Brown TD, Brand RA. Bone Ingrowth Stress Distributons Within a Novel Prosthesis Anchorage Layer. Paper presented at: Transactions of the 36th Annual Meeting of the Orthopaedic Research Society; February 5–8, 1990; New Orleans, Louisiana. 54. Pedersen DR, Brown TD, Brand RA. Two-Dimensional FEM Micromechanics of Bone Ingrowing a Geometrically Regular Woven Titanium Net. Paper presented at: Proceedings of the 102nd Session of the Iowa Academy of Science; April 20–21, 1990; Drake University, Des Moines, Iowa. 55. Brown TD, Baker KJ, Pedersen DR, Brand RA. Structural Aspects of Femoral Head Osteonecrosis. Paper presented at: Mechanics Computing in 1990's and Beyond, The American Society of Civil Engineers Conference; May 20–22, 1991; Columbus, Ohio. 56. Brown TD, Pedersen DR, Baker KJ, Brand RA. Mechanical Effects of Coring and Bone Grafting in Segmental Femoral Head Osteonecrosis. Paper presented at: Transactions of the 38th Annual Meeting of the Orthopaedic Research Society; February 17–20, 1992; Washington, D.C. 57. Brown TD, Pedersen DR, Rubin CT, Brand RA. Mechanical Parameters Initiating Periosteal Remodeling: A Combined Experimental and Analytical Approach. Paper presented at: Proceedings of the 21st Annual Meeting and Exhibition of the American Association for Dental Research; March 11–14, 1992; Boston, Massachusetts. 58. Brown TD, Pedersen DR, Baker KJ, Brand RA. Mechanical Consequences of Core Drilling and Bone Grafting in Femoral Head Necrosis. Paper presented at: Proceedings of the 1992 Summer Meeting of the Hip Society; September 10–12, 1992; Indianapolis, Indiana. 59. Brown TD, Baker KJ, Pedersen DR, Brand RA. Biomechanics of Femoral Head Aseptic Necrosis. Paper presented at: Proceedings of the 1992 International Symposium Biomedical Engineering in the 21st Century; September 23–26, 1992; Taipei, Taiwan, R.O.C. 34 College of Medicine Curriculum Vitae Douglas Ray Pedersen 60. Pedersen DR, Brown TD, Banes AJ. Mechanical Behavior of a New Sustratum for StrainMediated Cell Culture Experiments. Paper presented at: Proceedings of the Second North American Congress on Biomechanics; August 24–28, 1992; Chicago, Illinois. 61. Adams DJ, Pedersen DR, Rudert MJ, Brand RA, Rubin CT, Brown TD. Geometric Symmetry of the Turkey Ulna. Paper presented at: Proceedings of the 17th Annual Meeting of the American Society of Biomechanics; October 21–23, 1993; Iowa City, Iowa. 62. Banes AJ, Brigman B, Tsuzaki M, et al. Role of Mechanical Challenge in Tendon Cell 2nd Messenger Signalling and Mitogenic Response to Growth Factors. Paper presented at: Proceedings of the International Society for Fracture Repair; May 12–15, 1993; Reisensburg Castle, Germany. 63. Callaghan JJ, Pedersen DR, Olejniczak JP, Goetz DD, Johnston RC. Radiologic Wear Measurements in Five Cohorts of Total Hip Replacements. Paper presented at: Proceedings of the International Hip Society; August, 1993; Bankok, Thailand. 64. Callaghan JJ, Pedersen DR, Olejniczak JP, Goetz DD, Johnston RC. Radiologic Wear Measurements in Five Cohorts of Total Hip Replacements. Paper presented at: Inaugural Richard C. Johnston Lectureship in Orthopaedics; October, 1993; The University of Iowa, Iowa City, Iowa. 65. Hasler EM, Herzog W, Ronsky JL, et al. Comparison Between Theoretical and Measured Contact Forces in the Cat Patellofemoral Joint. Paper presented at: Proceedings of the XIVth International Society of Biomechanics Congress; July 4–8, 1993; Paris, France. 66. MacKenzie JR, Callaghan JJ, Pedersen DR, Brown TD. Areas of Contact and Extent of Gaps with Implantation of Oversized Acetabular Components in Total Hip Arthroplasty. Paper presented at: Proceedings of the Twenty-First Open Scientific Meeting of The Hip Society; February 21, 1993; San Francisco, California. 67. Meyer SA, Brown TD, Pedersen DR, Albright JP. The Effects of Patella Infera on Patellofemoral Contact Stress. Paper presented at: Transactions of the 39th Annual Meeting of the Orthopaedic Research Society; February 15–18, 1993; San Francisco, California. 68. Pedersen DR, Bottlang M, Brown TD, Banes AJ. Hyperelastic Constitutive Properties of Polydimethyl Siloxane Cell Culture Membranes. Paper presented at: Proceedings of the 1993 ASME Winter Annual Meeting; November 28–December 3, 1993; New Orleans, Louisiana. 69. Adams DJ, Pedersen DR, Brown TD, Rubin CT, Brand RA. Formal Three-Dimensional Contralateral (A)Symmetry of the Turkey Ulna. Paper presented at: Transactions of the 40th 35 College of Medicine Curriculum Vitae Douglas Ray Pedersen Annual Meeting of the Orthopaedic Research Society; February 21–24, 1994; New Orleans, Louisiana. 70. Adams DJ, Pedersen DR, Brown TD, Rubin CT, Brand RA. Formal Three-Dimensional Contralateral (A)Symmetry of the Turkey Ulna. Paper presented at: Proceedings of the College of Medicine Research Day XIX; April 14–15, 1994; The University of Iowa, Iowa City, Iowa. 71. Brown TD, Adams DJ, Spirt AA, Pedersen DR, Rubin CT, Brand RA. Toward Realistic Finite Element Modelling of Adaptive Bone Remodelling in the Functionally Isolated Turkey Ulna. Paper presented at: Department of Mechanical Engineering Lectures; October 25, 1994; University of Pittsburgh, Pittsburgh, Pennsylvania. 72. Brown TD, Maxian TA, Pedersen DR, Callaghan JJ. Sliding-Distance-Coupled Finite Element Polyethylene Wear Predictions in Total Hip Arthroplasty. Contact/Impact Biomechanics. Paper presented at: Application of High Performance Computing in Engineering; October 21–22, 1994; Pittsburgh Supercomputing Center, Pittsburgh, Pennsylvania. 73. Callaghan JJ, Pedersen DR, Olejniczak JP, Goetz DD, Johnston RC. Radiographic Wear Measurements in Five Cohorts of Total Hip Replacements. Paper presented at: Transactions of the 40th Annual Meeting of the Orthopaedic Research Society; February 21–24, 1994; New Orleans, Louisiana. 74. Callaghan JJ, Kim YS, Brown TD, Pedersen DR, Johnston RC. Concerns and Improvements with Cementless Metal Backed Acetabular Components. Paper presented at: Proceedings of the Twenty-Second Open Scientific Meeting of The Hip Society; February 27, 1994; New Orleans, Louisiana. 75. Hasler EM, Herzog W, Ronsky JL, Pedersen DR, Brown TD. Comparison of Theoretically Calculated and Measured Patellofemoral Contact Forces in the Cat Knee Joint. Paper presented at: Proceedings of the Canadian Orthopaedic Research Society; June 12–16, 1994; Winnipeg, Manitoba, Canada. 76. Kim YS, Brown TD, Pedersen DR, Callaghan JJ. Reamed Surface Topology and Component Seating in Press-Fit Cementless Acetabular Fixation. Paper presented at: Proceedings of the Second World Congress of Biomechanics; July 10–15, 1994; Amsterdam, The Netherlands. 77. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Finite Element Modeling of Polyethylene Stresses Using Industrial Tolerances for Femoral Head Sizes in Total Hip Replacements. Paper presented at: Proceedings of the 18th Annual Meeting of the American Society of Biomechanics; October 13–15, 1994; Columbus, Ohio. 36 College of Medicine Curriculum Vitae Douglas Ray Pedersen 78. Meyer SA, Brown TD, Pedersen DR, Albright JP. Influence of Patella Infera on Patellofemoral Contact Stress. Paper presented at: Proceedings of the 61st Annual Meeting of the American Academy of Orthopaedic Surgeons; February 24–March 1, 1994; New Orleans, Louisiana. 79. Pedersen DR. Rate of In-Vivo Polyethylene Wear For Five Different Acetabular Components Used Over A Five to Twenty-Two Year Period. Paper presented at: ASTM Committee F-4 workshop on Ultra High Molecular Polyethylene Materials; May, 1994; Montreal, Quebec, Canada. 80. Pedersen DR, Callaghan JJ, Olejniczak JP, Johnston RC. In-Vivo Polyethylene Wear Rates in Five Different Acetabular Components Used Over a Five to Twenty-Two Year Period. Paper presented at: BioEngineering Division PhD Competition at 1994 International Mechanical Engineering Congress and Exposition, ASME; November 6–11, 1994; Chicago, Illinois. 81. Ricos-Furio V, Pedersen DR, Brown TD, et al. Effects of Constitutive and Geometric Modelling Simplifications on Stresses Computed in the Turkey Ulna. Paper presented at: Proceedings of the 1994 International Mechanical Engineering Congress and Exposition, BioEngineering Division; November 6–11, 1994; Chicago, Illinois. 82. Ronsky JL, Herzog W, Pedersen DR, Hasler EM, Brown TD. The Influence of Joint Alignment, Joint Stability and Muscular Force on in-situ Patellofemoral Joint. Paper presented at: Proceedings of the Canadian Orthopaedic Research Society; June 12–16, 1994; Winnipeg, Manitoba, Canada. 83. Thornburg LE, Brown TD, Pedersen DR, Marsh JL, Brand RA. Acetabular Contact Pressures in a Cadaveric Transverse Fracture Model. Paper presented at: Surgery of the Pelvis and Acetabulum: The Second International Consensus; October 21–27, 1994; Pittsburgh, Pennsylvania. 84. Kim YS, Brown TD, Pedersen DR, Callaghan JJ. Seating of Hemispherical vs Dual Radius Components in Press-Fit Cementless Acetabular Fixation. Paper presented at: Transactions of the 41st Annual Meeting of the Orthopaedic Research Society; February 13–16, 1995; Orlando, Florida. 85. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. A Sliding-Distance-Coupled Finite Element Model for Polyethylene Wear in THA. Paper presented at: Transactions of the 41st Annual Meeting of the Orthopaedic Research Society; February 13–16, 1995; Orlando, Florida. 86. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Variability of Polyethylene Contact Stress Due to Current Industrial Tolerances for Femoral Head Sizes. Paper presented at: Transactions 37 College of Medicine Curriculum Vitae Douglas Ray Pedersen of the 41st Annual Meeting of the Orthopaedic Research Society; February 13–16, 1995; Orlando, Florida. 87. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Variability of Polyethylene Contact Stress Due to Current Industrial Tolerances for Femoral Head Sizes. Paper presented at: Proceedings of the College of Medicine Research Day XIX; April 20–21, 1995; The University of Iowa, Iowa City, Iowa. 88. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Femoral Head Containment vs Polyethylene Stress Concentration in THA Extended Lip Liners. Paper presented at: Proceedings of the 1995 ASME Summer Meeting, 1995. 89. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Adaptive Remeshing Behavior of a SlidingDistance-Coupled Contact Model of THA Wear. Paper presented at: Advances in Bioengineering, ASME Winter Annual Meeting; November 12–17, 1995; San Francisco, California. 90. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Adaptive Remeshing Behavor of a SlidingDistance-Coupled Contact Model of THA Wear. Paper presented at: 1995 Advances in Bioengineering, 1995. 91. Pedersen DR, Brown TD, Banes AJ. Nutrient Medium Reactive Inertial Stresses During Cell Culture Mechanostimulus. Paper presented at: Transactions of the 41st Annual Meeting of the Orthopaedic Research Society; February 13–16, 1995; Orlando, Florida. 92. Pedersen DR. Polyethylene Wear Rates for Five Different In Vivo Acetabular Components Used ofer a Five to Twenty-two Year Period. Paper presented at: Transactions of the 41st Annual Meeting of the Orthopaedic Research Society; February 13–16, 1995; Orlando, Florida. 93. Ronsky JL, Herzog W, Hasler EM, Brown TD, Pedersen DR. Contact Stress Distributions on InSitu Patellofemoral Joint Cartilage Contact. Paper presented at: Proceedings of the Bioengineering Conference, ASME Summer Meeting, 1995. 94. Thornburg LE, Brown TD, Pedersen DR, Marsh JL, Brand RA. Three-Dimensional Contact Stress Distributions for Acetabular Dome Fractures: A Re-Fracture Model to Address Site Specificity. Paper presented at: Transactions of the 41st Annual Meeting of the Orthopaedic Research Society; February 13–16, 1995; Orlando, Florida. 95. Brown TD, Pedersen DR, Maxian TA, Callaghan JJ. Determination of Directional Counterface Motion as a Factor in THA Wear Simulation. Paper presented at: Transactions of the 42nd 38 College of Medicine Curriculum Vitae Douglas Ray Pedersen Annual Meeting of the Orthopaedic Research Society, Workshop on Surface Damage in Total Joint Replacements: Kinemetic Issues; February 18–22, 1996; Atlanta, Georgia. 96. Brown TD, Rudert MJ, Pedersen DR, Baker KJ, Sakamoto J, Brand RA. Considerations for Computer Assisted Planning of Head-Preserving Surgery in Femoral Head Osteonecrosis. Paper presented at: Proceedings of the 42nd Annual Meeting of the Orthopaedic Research Society, Corporate Affiliates Workshop Computer-Guided Surgery and Robotics in Orthopaedics; February 18–22, 1996; Atlanta, Georgia. 97. Brown TD, Pedersen DR, Maxian TA, Callaghan JJ. Determination of Directional Counterface Motion as a Factor in THA Wear Simulation. Paper presented at: Transactions of the 42nd Annual Meeting of the Orthopaedic Research Society, Workshop Surface Damage in Total Joint Replacements: Kinematic Issues; February 18–22, 1996; Atlanta, Georgia. 98. Brown TD, Bottlang M, Pedersen DR, Banes AJ. Reactive Fluid Stresses Due to Nutrient Medium Motion in a Major Class of Culture Mechanostimulus Systems. Paper presented at: Proceedings of the 1996 Gordon Research Conference on Bioengineering and Orthopaedic Sciences 9th Biennial Meeting; July 28–August 2, 1996; Proctor Academy, Andover, New Hampshire. 99. Brown TD, Maxian TA, Pedersen DR, Callaghan JJ. A New Computer Model to Study Wear. Paper presented at: Harvard Hip Course; October 2–5, 1996; Boston, Massechusetts. 100. Brown TD, Maxian TA, Pedersen DR, Callaghan JJ. Distance Traveled Versus Load Per Unit Area. Paper presented at: Harvard Hip Course; October 2–5, 1996; Boston, Massechusetts. 101. Brown TD, Thornburg LE, Pedersen DR, Marsh JL, Brand RA. Acetabular Contact Pressures in a Cadaveric Fracture Model. Paper presented at: Surgery of the Pelvis and Acetabulum: The Third International Consensus; October 5–11, 1996; Pittsburg, Pennsylvania. 102. Malkani A, Voor M, Rennirt G, Helfet D, Pedersen DR, Brown TD. Increased Peak Contact Pressure Following Incongruent Reduction of Transverse Acetabular Fractures. A Cadaveric Model. Paper presented at: Proceedings of the Orthopaedic Trauma Association 12th Annual Meeting; September 27–29, 1996; Boston, Massechusetts. 103. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Long-Term Polyethylene Wear Rates for Total Hip Arthroplasty Determined by Adaptive Finite Element Modeling. Paper presented at: Transactions of the 42nd Annual Meeting of the Orthopaedic Research Society; February 18– 22, 1996; Atlanta, Georgia. 39 College of Medicine Curriculum Vitae Douglas Ray Pedersen 104. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Finite Element Modeling of Dislocation Propensity in Total Hip Arthroplasty. Paper presented at: Transactions of the 42nd Annual Meeting of the Orthopaedic Research Society; February 18–22, 1996; Atlanta, Georgia. 105. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Femoral Head Containment in Total Hip Arthroplasty. Standard VS Extended Lip Liners. Paper presented at: Transactions of the 42nd Annual Meeting of the Orthopaedic Research Society; February 18–22, 1996; Atlanta, Georgia. 106. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Three-Dimensional Sliding/Contact Computational Simulation of Acetabular Wear in THA. Paper presented at: Proceedings of the 24th Open Scientific Meeting of The Hip Society/Second Combined Open Meeting of the Hip Society and AAHKS; February 25, 1996; Atlanta, Georgia. 107. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Long-Term Polyethylene Wear Rates for Total Hip Arthroplasty Determined by Adaptive Finnite Element Modeling. Paper presented at: Transactions of the 42nd Annual Meeting of the Orthopaedic Research Society, February 18– 22, 1996, Atlanta, Georgia. 108. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Finite Element Modeling of Dislocation Propensity in Total Hip Arthroplasty. Paper presented at: Transactions of the 42nd Annual Meeting of the Orthopaedic Research Society, February 18–22, 1996, Atlanta, Georgia. 109. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Femoral Head Containment in Total Hip Arthroplasty: Standard VS Extended Lip Linders. Paper presented at: Transactions of the 42nd Annual Meeting of the Orthopaedic Research Society, February 18–22, 1996, Atlanta, Georgia. 110. Brown TD, Pedersen DR, Bottlang M, Banes AJ. Fluid-Structure Interaction as a Determinant of Nutrient Medium Reactive Stress in Mechanically Stimulated Cultures. Paper presented at: Transactions of the 43rd Annual Meeting of the Orthopaedic Research Society; February 9–13, 1997; San Francisco, California. 111. Brown TD, Maxian TA, Pedersen DR, Callaghan JJ. Finite Element Studies of Bearing Surface Wear in THA. Paper presented at: Proceedings of the Twenty-Fifth Open Scientific Meeting of theHip Society and the Third Combined Open Meeting of the Hip Society and AAHKS; February 16, 1997; San Francisco, California. 112. Brown TD, Nieman JC, Pedersen DR, Callaghan JJ. Finite Element Model of Third Body Wear. Paper presented at: Proceedings of the The Hip Society Summer Meeting; September 11–13, 1997; New York, New York. 40 College of Medicine Curriculum Vitae Douglas Ray Pedersen 113. Emodi GJ, Takatsu T, Callaghan JJ, Brown T, D., Pedersen DR. The Effect of Surgically Induced Parameters on Posterior Cruciate Ligament Function Following Total Knee Arthrpolasty. Paper presented at: Transactions of the 43rd Annual Meeting of the Orthopaedic Research Society; February 9–13, 1997; San Francisco, California. 114. Hop JD, Callaghan JJ, Olejniczak JP, Pedersen DR, Brown TD, Johnston RC. An In Vivo Model of Third Body Wear Contribution of Cable Debris Generation to Accelerated Polyethylene Wear and Acetabular Component Loosening. Paper presented at: Proceedings of the Twenty-Fifth Open Scientific Meeting of the Hip Society and the Third Combined Open Meeting of the Hip Society and AAHKS; February 16, 1997; San Francisco, California. 115. Malkani AL, Voor MJ, Rennirt GW, Helfet DL, Pedersen DR, Brown TD. Increased Peak Contact Pressure Following Incongruent Reduction of Transverse Acetabular Fractures: A Cadaveric Model. Paper presented at: Proceedings of the 64th Annual Meeting of the American Academy of Orthopaedic Surgeons; February 13–17, 1997; San Francisco, California. 116. Maxian TA, Brown TD, McKellop H, Lu B, Pedersen DR, Callaghan JJ. Direct Physical Validation of a Finite Element Model of Polyethylene Wear in Total Hip Arthroplasty. Paper presented at: Transactions of the 43rd Annual Meeting of the Orthopaedic Research Society; February 9–13, 1997; San Francisco, California. 117. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. A Computational Simulation of Polyethylene Wear for Alternative Acetabular Component Fixation Modalities. Paper presented at: Transactions of the 43rd Annual Meeting of the Orthopaedic Research Society; February 9– 13, 1997; San Francisco, California. 118. Pedersen DR, Brown TD, Poggie RA. Finite Element Characterization of a Porous Tantalum Material for Treatment of Avascular Necrosis. Paper presented at: Transactions of the 43rd Annual Meeting of the Orthopaedic Research Society; February 9–13, 1997; San Francisco, California. 119. Pedersen DR, Brown TD, Hillis SA, Callaghan JJ. Prediction of Long-Term Polyethelene Wear in THA, Based on Early Wear Measurements Made Using Digital Image Analysis. Paper presented at: Transactions of the 43rd Annual meeting of the Orthopaedic Research Society; February 9–13, 1997; San Francisco, California. 120. Scifert CF, Brown TD, Pedersen DR, Callaghan JJ. Experimental Validation of a Computational Simulation of Dislocation in THA. Paper presented at: Proceedings of the Twenty-First Annual 41 College of Medicine Curriculum Vitae Douglas Ray Pedersen Meeting of the American Society of Biomechanics; September 24–27, 1997; Clemson, South Carolina. 121. Scifert CF, Brown TD, Pedersen DR, Callaghan JJ. Effects of Acetabular Component Lip Design on Dislocation Resistance in THA. Paper presented at: Proceedings of the ASME IMECE97 BED Meeting; November 16–21, 1997; Dallas, Texas. 122. Banes AJ, Tsuzaki M, Yang X, et al. Equibiaxial Strain Activates AP-1 and CRE Transcription Factors but Not NF-KB or SSRE and Upregulates CX43 mRNA in Tendon Cells In Vitro. Paper presented at: Transactions of the 44th Annual Meeting of the Orthopaedic Research Society; March 16–19, 1998; New Orleans, Louisiana. 123. Banes AJ, Weinhold PS, Pedersen DR, et al. Cyclic Mechanical Load Increases DNA Synthesis in Tendon Ex Vivo. Paper presented at: Proceedings of the First Southeastern US Tissue Engineering Conference; June 5, 1998; North Carolina Biotechnology Institute, Research Triangle Park, North Carolina. 124. Banes AJ, Tsuzaki M, Yang X, et al. Equibiaxial Strain and Norepinephrine Activate CRE DNA Binding Protein and Expression of Connexin 43. Paper presented at: Proceedings of the Third World Congress of Biomechanics; August 2–8, 1998; Hokkaido University, Sapporo, Japan. 125. Brown TD, Pedersen DR, Vandenburgh HH. Nutrient Medium Reactive Stresses in a Cell Culture Mechanostimulus Apparatus in which a Deformable Substratum is Tented by Vertical Motions of an Underlying Central Post. Paper presented at: Transactions of the 44th Annual Meeting of the Orthopaedic Research Society; March 16–19, 1998; New Orleans, Louisiana. 126. Brown TD, Bottlang M, Pedersen DR, Banes AJ. Flow Field Visualization in Confirmation of a Finite Element Model of Nutrient Medium Reactive Stress in a Pressure-Differential-Driven Cell Culture Mechanostimulus System. Paper presented at: Transactions of the 44th Annual Meeting of the Orthopaedic Research Society; March 16–19, 1998; New Orleans, Louisiana. 127. Brown TD, Bottlang M, Pedersen DR, Banes AJ. Flow Field Visualization in Confirmation of a Finite Element Model of Nutrient Medium Reactive Stress in a Pressure-Differential-Driven Cell Culture Mechanostimulus System. Paper presented at: Proceedings of the College of Medicine Research Week; April 13–16, 1998; The University of Iowa, Iowa City, Iowa. 128. Brown TD, Neiman JC, Pedersen DR, Callaghan JJ. Third Body Wear Simulations in Total Hip Replacement. Paper presented at: Proceedings of the Fourth Biannual Johnston Lectureship in Hip Reconstruction; October 16–17, 1998; Iowa City, Iowa. 42 College of Medicine Curriculum Vitae Douglas Ray Pedersen 129. Mavèiè B, Antoliè V, Brand RA, et al. Weight Bearing Area During Gait in Normal and Dysplastic Human Hips. Paper presented at: Department of Orthopaedic Surgery Lectures; March, 1998; University of Ljubljana, Ljubljana, Slovenia. 130. Nieman JC, Brown TD, Pedersen DR, Callaghan JJ. The Effects of Localized Regions of Head Roughening on Variability of UHMWPE Wear in THA. Paper presented at: Transactions of the 44th Annual Meeting of the Orthopaedic Research Society; March 16–19, 1998; New Orleans, Louisiana. 131. Otto JK, Brown TD, Heiner AD, Pedersen DR, Callaghan JJ. Characterization of the Dynamic Response of a Piezoresistive Contact Stress Sensor. Paper presented at: Transactions of the 44th Annual Meeting of the Orthopaedic Research Society; March 16–19, 1998; New Orleans, Louisiana. 132. Pedersen DR, Brown TD, Hillis SL, Callaghan JJ. Early Prediction of Long-Term Polyethylene Wear in Total Hip Arthroplasty. Paper presented at: Transactions of the 44th Annual Meeting of the Orthopaedic Research Society; March 16–19, 1998; New Orleans, Louisiana. 133. Pedersen DR, Brown TD, Hillis SL, Callaghan JJ. The Influence of 3rd Body Debris on In Vivo Polyethylene Wear in Total Hip Arthroplasty. Paper presented at: Transactions of the 44th Annual Meeting of the Orthopaedic Research Society; March 16–19, 1998; New Orleans, Louisiana. 134. Pedersen DR, Brown TD, Callaghan JJ, Hillis SL. Quantitative Estimates of Long-Term Polyethylene Wear in Total Hip Arthroplasty, Based on Early Wear Measurements Made Using Digital Image Analysis. Paper presented at: Proceedings of the 65th Annual Meeting of the American Academy of Orthopaedic Surgeons; March 19–23, 1998; New Orleans, Louisiana. 135. Pedersen DR, Brown TD, Hillis SL, Callaghan JJ. The Influence of 3rd Body Debris on In Vivo Polyethylene Wear in Total Hip Arthroplasty. Paper presented at: Proceedings of the College of Medicine Research Week; April 13–16, 1998; The University of Iowa, Iowa City, Iowa. 136. Pedersen DR, Brown TD, Callaghan JJ. 3rd Body Acceleration of In-Vivo UHMWPE Wear. Paper presented at: Proceedings of the 1998 Annual Fall Meeting of the Biomedical Engineering Society; October 10–13, 1998; Cleveland, Ohio. 137. Scifert CF, Brown TD, Pedersen DR, Heiner AD, Callaghan JJ. Direct Physical Validation of a Finite Element Model of Total Hip Dislocation. Paper presented at: Transactions of the 44th Annual Meeting of the Orthopaedic Research Society; March 16–19, 1998; New Orleans, Louisiana. 43 College of Medicine Curriculum Vitae Douglas Ray Pedersen 138. Scifert CF, Brown TD, Pedersen DR, Callaghan JJ. The Effects of Cup Tilt and Anteversion on Dislocation Propensity in THA. Paper presented at: Transactions of the 44th Annual Meeting of the Orthopaedic Research Society; March 16–19, 1998; New Orleans, Louisiana. 139. Scifert CF, Brown TD, Pedersen DR, Callaghan JJ. The Effects of Cup Tilt and Anteversion on Dislocation Propensity in THA. Paper presented at: Proceedings of the College of Medicine Research Week; April 13–16, 1998; University of Iowa, Iowa City, Iowa. 140. Brown TD, Gray ML, Pedersen DR. Nutrient Medium Reactive Stresses in a Cell Culture Mechanostimulus System Delivering Homogeneous Equibiaxial Strains. Paper presented at: Transactions of the 45th Annual Meeting of the Orthopaedic Research Society; February 1–4, 1999; Anaheim Calfornia. 141. Brown TD, Banes AJ, Bottlang M, Pedersen DR. Nutrient Depth and Waveform Abruptness as Determinants of Reactive Fluid Stresses in a Vacuum-Driven Cell Culture Mechanostimulus System. Paper presented at: Transactions of the 45th Annual Meeting of the Orthopaedic Research Society; February 1–4, 1999; Anaheim Calfornia. 142. Brown TD, Pedersen DR, Heiner AD, Brand RA, Poggie RA, Christie MJ. Biomechanics of Femoral Head Osteonecrosis: Natural History and Head-Preserving Surgical Management. Paper presented at: Proceedings of the 66th Annual Meeting of the American Academy of Orthopaedic Surgeons; February 4–8, 1999; Anaheim Calfornia. 143. Brown TD, Banes AJ, Bottlang M, Pedersen DR. Nutrient Depth and Waveform Abruptness as Determinants of Reactive Fluid Stresses in a Vacuum-Driven Cell Culture Mechanostimulus System. Paper presented at: Proceedings of the College of Medicine Research Week; April 26– 29, 1999; The University of Iowa, Iowa City Iowa. 144. Callaghan JJ, Albright JC, Goetz DD, Olejniczak JP, Johnston RC, Pedersen DR. At Minimum 10 Year Follow-Up Do Cementless Acetabular Components Outperform Cemented Acetabular Components. Paper presented at: Proceedings of the 66th Annual Meeting of the American Academy of Orthopaedic Surgeons; February 4–8, 1999; Anaheim Calfornia. 145. Kralj-Igliè V, Igliè A, Brand RA, Pedersen DR. Contact Stress in the Hip Joint During Gait. Paper presented at: Proceedings of the 10th SICOT Trainees Meeting; September 15–18, 1999; Portorož, Slovenia. 146. Poggie RA, Brown TD, Pedersen DR. Finite Element Analysis of Peri-Acetabular Stress of Cemented, Metal-Backed, and Porous Tantalum Backed Acetabular Components. Paper 44 College of Medicine Curriculum Vitae Douglas Ray Pedersen presented at: Transactions of the 45th Annual Meeting of the Orthopaedic Research Society; February 1–4, 1999; Anaheim Calfornia. 147. Scifert CF, Brown TD, Pedersen DR, Callaghan JJ. The Effect of Revision Cup Outer Diameter on Impingement in Total Hip Arthroplasty. Paper presented at: Transactions of the 45th Annual Meeting of the Orthopaedic Research Society; February 1–4, 1999; Anaheim, Calfornia. 148. Scifert CF, Brown TD, Pedersen DR, Callaghan JJ. Collar-Liner Hooking as a Serendipitous Dislocation Check in Revision Total Hip Arthroplasty: A Finite Element "Discovery". Paper presented at: Proceedings of the XVIIth International Society of Biomechanics Congress; August 8–13, 1999; Calgary, Alberta, Canada. 149. Liu SS, Callaghan JJ, Goetz DD, Pedersen DR, Johnston RC. Durability of cemented matte finish femoral components at 14 to 15 year follow-up. Paper presented at: Proceedings of the 67th Annual Meeting of the American Academy of Orthopaedic Surgeons; March 12–15, 2000; Orlando, Florida. 150. Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. Effects of cup anteversion/tilt orientation on dislocation propensity for 22mm head-size total hip replacements. Paper presented at: Proceedings of the Midwest Graduate Students' Biomechanics Symposium (sponsored by the American Society of Biomechanics); April 1, 2000; Normal, Illinois. 151. Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. Effects of cup anteversion/tilt orientation on dislocation propensity for 22mm head-size total hip replacements. Paper presented at: Graduate Student Senate Forum 2000, 2000; The University of Iowa, Iowa City, Iowa. 152. Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. Cup Anteversion/Tilt Effects on Dislocation Propensity for Small Head Size Total Hip Replacements. Paper presented at: Proceedings of the 24th Annual Meeting of the American Society of Biomechanics; July 19–22, 2000; University of Illinois at Chicago, Chicago, Illinois. 153. Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. Cup Anteversion/Tilt Effects on Dislocation Propensity for Small-Head-Size Total Hip Replacements. Paper presented at: Proceedings of the 24th Annual Meeting of the American Society of Biomechanics; July 19–22, 2000; Chicago, Illinois. 154. Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. Comparison of Cup Anteversion and Tilt Effects on Dislocation Propensity for Small-Head-Size Total Hip Replacements. Paper presented at: Proceedings of the International Mechanical Engineering Congress & Exposition, 45 College of Medicine Curriculum Vitae Douglas Ray Pedersen American Society of Mechanical Engineers, Bioengineering Division; November 9, 2000; Orlando, Florida. 155. Pedersen DR, Heiner AD, Brown TD. Local Mechanics of Subchondral Plate Engagement in Structural Grafting for Osteonecrosis. Paper presented at: Transactions of the 46th Annual Meeting of the Orthopaedic Research Society; March 12–15, 2000; Orlando, Florida. 156. Pedersen DR, Callaghan JJ, Heiner AD, Brown TD. Chi-aquare Testing of THA Wear Rate Distribution Normality. Paper presented at: Transactions of the 46th Annual Meeting of the Orthopaedic Research Society; March 12–15, 2000; Orlando, Florida. 157. Pedersen DR, Callaghan JJ, Heiner AD, Brown TD. Chi-aquare Testing of THA Wear Rate Distribution Normality. Paper presented at: Proceedings of the College of Medicine Research Days XXV; April 25, 2000; The University of Iowa, Iowa City. Iowa. 158. Pedersen DR, Yack HJ, Wahi R, Callaghan JJ, Brown TD. Kinematics of Maneuvers Commonly Responsible for Hip Dislocation. Paper presented at: Proceedings of the 24th Annual Meeting of the American Society of Biomechanics; July 19–22, 2000; University of Illinois at Chicago, Chicago, Illinois. 159. Pedersen DR, Callaghan JJ, McAndrew C, Johnston RC. Dislocation and Wear of 22mm and 28mm Modular Heads in Uncemented Acetabular Cups. Paper presented at: Proceedings of the Hip Society Summer Meeting; September 15–16, 2000; Boston, Massechussets. 160. Pedersen DR, Callaghan JJ, McAndrew C, Johnston RC. Total Hip Arthroplasty Wear Rate Distributions are Non-Gaussian. Paper presented at: Proceedings of the Hip Society Summer Meeting; September 15–16, 2000; Boston, Massechussets. 161. Wilken J, Pedersen DR, Yack HJ, Callaghan JJ. 3 Dimensional Kinematics of Movements Associated with Hip Dislocation Following Hip Replacement Surgery. Paper presented at: Proceedings of the 2nd Annual Graduate Student Senate Research Forum; April 12, 2000; University of Iowa, Iowa City, Iowa. 162. Wilken J, Yack HJ, Pedersen DR, Brown TD, Callaghan JJ. 3 Dimensional Kinematics of Movements Associated with Dislocation Following Hip Replacement Surgery. Paper presented at: Proceedings of the College of Medicine Research Week 2000; April 25, 2000; The University of Iowa, Iowa City, Iowa. 163. Brown TD, Maxian TA, Stewart KJ, Pedersen DR. Clinical Biomechanics of Wear in THA. Paper presented at: Proceedings of the 1st Global Communication of the Art & Science of Joint Replacement Surgery; October 31–November 2, 2001; Seoul, Korea. 46 College of Medicine Curriculum Vitae Douglas Ray Pedersen 164. Brown TD, Nadzadi ME, Scifert CF, Pedersen DR, Callaghan JJ. Biomechanics of THA Dislocation. Paper presented at: Proceedings of the 1st Global Communication of the Art & Science of Joint Replacement Surgery; October 31–November 2, 2001; Seoul, Korea. 165. Callaghan JJ, Goetz DD, Sullivan PM, Pedersen DR, Johnston RC. Is a Polished Surface Finish Optimal for a Collared Cemented Prosthesis? Paper presented at: Proceedings of the 68th Annual Meeting of the American Academy of Orthopaedic Surgeons; February 28–March 4, 2001; San Francisco, California. 166. Callaghan JJ, Goetz DD, Sullivan PM, Pedersen DR, Johnston RC. Cementless Acetabular Fixation in Revision Hip Surgery: The Gold Standard for the New Millennium. Paper presented at: Proceedings of the 68th Annual Meeting of the American Academy of Orthopaedic Surgeons; February 28–March 4, 2001; San Francisco, California. 167. Grosland NM, Pedersen DR, Brown TD. Automating Voxel-Based Contact Finite Element Models. Paper presented at: Proceedings of the 9th Annual Symposium of Computational Methods in Orthopaedic Biomechanics; February 23, 2001; San Francisco, California. 168. Grosland NM, Pedersen DR, Brown TD. An Anatomical Voxel-Bsed FE Contact Analysis Formulation. Paper presented at: Proceedings of the 25th Annual Meeting of the American Society of Biomechanics; August 9–12, 2001; San Diego, California. 169. Johnston TL, Callaghan JJ, Pedersen DR, McAndrew CM. Are 22 mm Heads the Solution to Polyethylene Wear in Cementless Acetabular Components? Paper presented at: Proceedings of the 19th Annual Meeting of the Mid-America Orthopaedic Association; April 18–22, 2001; Amelia Island Plantation, Florida. 170. Liu SS, Callaghan JJ, Goetz DD, Sullivan PM, Pedersen DR. Cemented Metal Backed Acetabular Components at Long-term Follow-up: What Lessons can be Applied to Cementless Fixation? Paper presented at: Proceedings of the 19th Annual Meeting of the Mid-America Orthopaedic Association; April 18–22, 2001; Amelia Island Plantation, Florida. 171. Liu SS, Callaghan JJ, Goetz DD, Sullivan PM, Pedersen DR, Johnston RC. Cemented Metal Backed Acetabular Components at Long Term Follow-Up: What Lessons can be Applied to Cementless Fixation? Paper presented at: Proceedings of the 11th Annual Meeting of the American Association of Hip and Knee Surgeons; November 9–11, 2001; Dallas, Texas. 172. Nadzadi ME, Pedersen DR, Yack HJ, Callaghan JJ, Brown TD. Incorporation of In-Vivo Human Kinetic Data Into a Finite Element Model of THA Dislocation. Paper presented at: Proceedings 47 College of Medicine Curriculum Vitae Douglas Ray Pedersen of the 9th Annual Symposium of Computational Methods in Orthopaedic Biomechanics; February 23, 2001; San Francisco, California. 173. Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. Cup Abduction/Anteversion Effects on Dislocation Propensity for Small-Head-Size THR. Paper presented at: Transactions of the 47th Annual Meeting of the Orthopaedic Research Society; February 24–28, 2001; San Francisco, California. 174. Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. A Mode of THA Dislocation Occurring Without Impingement/Lever-Out. Paper presented at: Transactions of the 47th Annual Meeting of the Orthopaedic Research Society; February 24–28, 2001; San Francisco, California. 175. Nadzadi ME, Pedersen DR, Yack HJ, Brown TD. Maneuvers Commonly Responsible for Hip Dislocation Define a Cup Placement 'Safe Zone' in Total Hip Arthroplasty. Paper presented at: VA Research Day 2001; April 19, 2001; The University of Iowa, Iowa City, Iowa. 176. Nadzadi ME, Pedersen DR, Yack HJ, Callaghan JJ, Brown TD. Development of a Living-Subject Motion Database to Examine Both Posterior and Anterior Dislocation in THA. Paper presented at: Proceedings of the 2001 Bioengineering Conference, 2001. 177. Nadzadi ME, Pedersen DR, Yack HJ, Callaghan JJ, Brown TD. A Database of Living-Subject Motion to Examine Both Posterior and Anterior Dislocation of Total Hip Replacements. Paper presented at: Proceedings of the 25th Annual Meeting of the American Society of Biomechanics; August 9–12, 2001; San Diego, California. 178. Pedersen DR, Yack HJ, Brown TD, Callaghan JJ. Kinematics of Maneuvers Commonly Responsible for Total Hip Dislocation. Paper presented at: Proceedings of the 4th Combined Meeting of the Orthopaedic Research Societies of the U.S.A, Canada, Europe and Japan; June 1–3, 2001; Rhodes, Greece. 179. Templeton JE, Callaghan JJ, Goetz DD, Sullivan PM, Pedersen DR. Cementless Acetabular Fixation in Revision Hip Surgery: The Gold Standard for the New Millennium. Paper presented at: Proceedings of the 19th Annual Meeting of the Mid-America Orthopaedic Association; April 18–22, 2001; Amelia Island Plantation, Florida. 180. Templeton JE, Callaghan JJ, Goetz DD, Sullivan PM, Pedersen DR, Johnston RC. Cementless Acetabular Fixation in Revision Hip Surgery: Results at Minimum 10 Year Follow Up. Paper presented at: Proceedings of the 11th Annual Meeting of the American Association of Hip and Knee Surgeons; November 9–11, 2001; Dallas, Texas. 48 College of Medicine Curriculum Vitae Douglas Ray Pedersen 181. Callaghan JJ, Gaffey JL, Pedersen DR, Goetz DD, Johnston RC. Cementless Acetabular Fixation at 15 Years: Comparison to the Gold Standard Charnley. Paper presented at: Joint Meeting of the American and Canadian Orthopaedic Associations; June 1–4, 2002; Victoria, British Columbia, Canada. 182. Callaghan JJ, Keener JD, Pedersen DR, Sullivan PM, Goetz DD, Johnston RC. Charnley Total Hip Arthroplasty in Patients Under Age 50: Functional and Radiographic Results at Minimum 25 Year Follow-up. Paper presented at: Joint Meeting of the American and Canadian Orthopaedic Associations; June 1–4, 2002; Victoria, British Columbia, Canada. 183. Callaghan JJ, Pedersen DR. Long Term Follow-up Studies of Wear. Paper presented at: International Conference Engineers & Surgeons - Joined at the Hip; June 13–15, 2002; Savoy Place, London, United Kingdom. 184. Dai Y, Pedersen DR, Grosland NM, Brown TD. Interactive Three-Dimensional Computational Reconstruction of Intra-Articular Fractures. Paper presented at: Proceedings of the 10th Annual Symposium on Computational Methods in Orthopaedic Biomechanics; February 9, 2002; Dallas, Texas. 185. Gaffey JL, Callaghan JJ, Pedersen DR, Goetz DD, Johnston RC. Cementless Acetabular Fixation at 15 Years: Comparison to the Gold Standard Charnley. Paper presented at: Proceedings of the 68th Annual Meeting of the American Academy of Orthopaedic Surgeons; February 13–17, 2002; Dallas, Texas. 186. Lamb CA, Pedersen DR, Dolan LA, Morcuende JA, Weinstein SL. Radiographic Measurements in DDH: Reliability and Validity of a Digitizing Program. Paper presented at: Transactions of the 48th Annual Meeting of the Orthopaedic Research Society; February 10–13, 2002; Dallas, Texas. 187. Lamb CA, Pedersen DR, Dolan LA, Morcuende JA, Weinstein SL. Radiographic Measurements in DDH: Reliability and Validity of a Digitizing Program. Paper presented at: Proceedings of the Annual Meeting of the Pediatric Orthopaedic Society of North America; May 1–5, 2002; Salt Lake City, Utah. 188. Pedersen DR, Callaghan JJ, Johnston TL, Fetzer GB, Johnston RC. Are 22 Millimeter Heads the Solution to Polyethylene Wear in Cenentless Acetabular Components? Paper presented at: Proceedings of the 68th Annual Meeting of the American Academy of Orthopaedic Surgeons; February 13–17, 2002; Dallas, Texas. 49 College of Medicine Curriculum Vitae Douglas Ray Pedersen 189. Pedersen DR, Ralston HM, Lamb CA, Weinstein SL. Bone morphology changes in DDH hips. Paper presented at: Proceedings of the IV World Congress of Biomechanics; August 4–9, 2002; Calgary, Alberta, Canada.. 190. Stewart KJ, Pedersen DR, Brand RA, Brown TD. Hyperelastic Representation of Hip Joint Capsule: A Finite Element Validation. Paper presented at: Proceedings of the IV World Congress of Biomechanics; August 4–9, 2002; Calgary, Alberta, Canada. 191. Callaghan JJ, Gaffey JL, Goetz DD, Sullivan PM, Pedersen DR, Johnston, RC. Cementless acetabular fixation at 15 years with the HG-I component: Comparison to the gold standard Charnley. The American Association of Hip & Knee Surgeons 12th Annual Fall Meeting, November 1–3, 2002, Dallas, Texas, paper #12. 192. Callaghan JJ, Pedersen DR, Johnston RC, Brown TD. OREF Clinical Research Award: Clinical Biomechanics of Wear in Total Hip Arthroplasty. Paper presented at: 49th Annual Meeting of the Orthopaedic Research Society; Feb., 2003; New Orleans, Louisiana. 193. Stewart KJ, Pedersen DR, Brand RA, Brown TD. Hyperelastic Representation of Hip Joint Capsule: A Finite Element Validation. Paper presented at: 49th Annual Meeting of the Orthopaedic Research Society; February, 2003; New Orleans, Louisiana. 194. Gaffey JL, Callaghan JJ, Pedersen DR, Goetz DD, Sullivan PM, Johnston RC. Cementless Acetabular Fixation at 15 Years: Comparison to the Same Surgeon's Cemented Results. Paper presented at: Annual Meeting of MidAmerica Orthopaedic Association; April, 2003; Hilton Head, South Carolina. 195. Callaghan JJ, Pedersen DR, Brown TD, Johnston RC. Clinical biomechanics of wear in THA. 2003 OREF Award paper. The University of Iowa Department of Orthopaedics 29th Annual Senior Residents’ Days, June 6–7, 2003, Iowa City, Iowa. 196. Ralston HM, Pedersen DR. Bone Morphology Changes in DDH Hips Throughout Adulthood. 27th Annual Meeting of the American Society of Biomechanics, September 25–27, 2003, Toledo, Ohio. 197. Bouchard SM, Stewart KJ, Pedersen DR, Brown TD. Parameters Influencing Dislocation Resistance of Constrained Acetabular Cups. 12th Annual Symposium on Computational Methods in Orthopaedic Biomechanics, March 6, 2004, Parnassus Campus, University of California, San Francisco, California. 198. Lundberg HJ, Stewart KJ, Pedersen DR, Brown TD. Problematic Sites of Third body Embedment in Polyethylene for Wear Acceleration in Total Hip Arthroplasty. 12th Annual 50 College of Medicine Curriculum Vitae Douglas Ray Pedersen Symposium on Computational Methods in Orthopaedic Biomechanics, March 6, 2004, Parnassus Campus, University of California, San Francisco, California. (Oral Presentation. Session title: Bone and prosthesis modeling) 199. Stewart KJ, Pedersen DR, Brown TD. Development of a Total Hip Dislocation Finite Element Model with Capsule Representation. 12th Annual Symposium on Computational Methods in Orthopaedic Biomechanics, March 6, 2004, Parnassus Campus, University of California, San Francisco, California. (Accepted for Oral Presentation. Session title: Soft tissue modeling) 200. Bouchard SM, Stewart KJ, Pedersen DR, Brown TD. Parameters Influencing Performance of Constrained Acetabular Cups. 50th Annual Meeting of the Orthopaedic Research Society, March 7–10, 2004, San Francisco, California. p. 1339. 201. Pedersen DR, Callaghan JJ, Brown TD. Activity-dependence of the Safe Zone for THA Performance. 50th Annual Meeting of the Orthopaedic Research Society, March 7–10, 2004, San Francisco, California. p. 1342. 202. Pedersen DR, Callaghan JJ, Brown TD. Activity-dependence of the Safe Zone for THA Performance. 50th Annual Meeting of the Orthopaedic Research Society, March 7–10, 2004, San Francisco, California. p. 1342. 203. Callaghan JJ, Templeton JE, Goetz DD, Sullivan PM, Pedersen DR, Johnston RC. A Benchmark for Future Total Hip arthroplasty: Results of Charnley THR at Minimum 30-year Follow Up. 71st Annual Meeting of the American Academy of Orthopaedic Surgeons, March 10, 2004, San Francisco, California, p. 090. 204. Bouchard SM, Stewart KJ, Pedersen DR, Callaghan JJ, Brown TD. Parameters Influencing Performance of Constrained Acetabular Cups. Roy J. and Lucille A. Carver College of Medicine/College of Public Health/VA Medical Center Research Week 2004, March 30– April 1, 2004, Iowa City, Iowa. 205. Leinen JA, Schroeder BT, Pedersen DR, Dolan LA, Weinstein SL, Morcuende JA. Long-term Outcome After Closed Reduction for Developmental Dysplasia of the Hip. Roy J. and Lucille A. Carver College of Medicine/College of Public Health/VA Medical Center Research Week 2004, March 30–April 1, 2004, Iowa City, Iowa. 206. Pedersen DR, Callaghan JJ, Brown TD. Activity-dependence of the Safe Zone for THA Dislocation Performance. Roy J. and Lucille A. Carver College of Medicine/College of Public Health/VA Medical Center Research Week 2004, March 30– April 1, 2004, Iowa City, IA. 51 College of Medicine Curriculum Vitae Douglas Ray Pedersen 207. Dahl KA, Callaghan JJ, Pedersen DR, Liu SS, Goetz DD, Sullivan PM, Johnston RC. The Effect of Cable Debris on Acetabular Construct Durability in Cemented Total Hip Arthroplasty at Minimum Twenty-year Follow-up. Mid-American Orthopaedic Association 22nd Annual Meeting, April 14–18, 2004, La Quinta, Palm Springs, California. 208. Buckwalter AE, Callaghan JJ, Pedersen DR, Goetz DD, Vittetoe DA. A Minimum Twenty-fiveyear Follow-up Study of Cemented Total Hip Arthroplasty Using “Contemporary” Cementing Techniques. 35th Annual Student Medical Research Day, September 5, 2003, University of Iowa, Iowa City, Iowa. 209. Firestone DE, Liu SS, Callaghan JJ, Gaffey JL, Pedersen DR, Goetz DD, Vittetoe DD, Sullivan PM, Johnston RC. Comparison of Tthree Cemented Femoral Components with Identical Geometry But Different Surface Finishes at Minimum Ten-year Follow-up. (Edward D. Henerson Physician in Training Award). Mid-American Orthopaedic Association 22nd Annual Meeting, April 14–18, 2004, La Quinta, Palm Springs, California. 210. Baer, T.E., Pedersen, D.R., Rudert, J.M., Kallemeyn, N.A., Grosland, N.M., Brown, T.D.: A Novel Device For Calibrating Sheet Array Pressure Sensors and For Monitoring Their Performance. 28th Annual Meeting of the American Society of Biomechanics, September 8–11, 2004, Portland, Oregon, p. 239. 211. Bouchard, S.M., Stewart, K.J., Pedersen, D.R., Callaghan, J.J., Brown, T.D.: A Parametric Finite Element Study of Constrained Acetabular Liners. 28 th Annual Meeting of the American Society of Biomechanics, September 8–11, 2004, Portland, Oregon, p. 174. 212. Lundberg, H.J., Stewart, K.J., Pedersen, D.R., Brown, T.D.: Problematic Sites of Third Body Embedment in Polyethylene For Wear Acceleration in Total Hip Arthroplasty. 28 th Annual Meeting of the American Society of Biomechanics, September 8–11, 2004, Portland, Oregon, p.180. 213. Stewart, K.J., Pedersen, D.R., Callaghan, J.J., Brown, T.D.: Capsule Representation in a Total Hip Dislocation Finite Element Model. 28th Annual Meeting of the American Society of Biomechanics, September 8–11, 2004, Portland, Oregon, p.129. 214. Pedersen, DR; Firestone, DE; Liu, SS; Callaghan, JJ; Goetz, DD; Johnston, RC. Durability of Identical Cemented Femoral Component Geometries with Three Different Surface Finishes Compared at Minimum 10-Year Follow-Up. Proceedings of the 4th Chinese Speaking Orthopaedic Society Scientific Congress, September 22–26, 2004, Beijing, China. p.87. 52 College of Medicine Curriculum Vitae Douglas Ray Pedersen 215. McKinley, T.O., Rudert, M.J., Koos, D.K., Pedersen, D.R., Baer, T.E., Tochigi, Y., Marsh, J.L., Brown, T.D.: Real-Time Transient and Whole-Stance Phase Contact Stress and Contact Stress Gradient Changes in an Ankle Incongruity Model. OTA 20th Annual Meeting, October 8, 2004, Ft. Lauderdale/Hollywood, Florida. 216. Baer, T.E., Pedersen, D.R., Rudert, J.M., Kallemeyn, N.A., Grosland, N.M., Brown, T.D.: Calibrating and Monitoring Sheet Array Pressure Sensors for Intra-Articular Loading Measurement. 5th Combined Meeting of the Orthopaedic Research Societies of the U.S.A., Canada, Japan and Europe, October 10–13, 2004, Banff, Alberta, Canada, p.115. 217. Bouchard, S.M., Stewart, K.J., Pedersen, D.R., Callaghan, J.J., Brown, T.D.: Factors Influencing Mechanics of Constrained Acetabular Cups. 5th Combined Meeting of the Orthopaedic Research Societies of the U.S.A., Canada, Japan and Europe, October 10–13, 2004, Banff, Alberta, Canada, p.251. 218. Lundberg, H.J., Stewart, K.J., Pedersen, D.R., Brown, T.D.: Problematic Sites of Third Body Embedment in Polyethylene For Wear Acceleration in Total Hip Arthroplasty. 5 th Combined Meeting of the Orthopaedic Research Societies of the U.S.A., Canada, Japan and Europe, October 10–13, 2004, Banff, Alberta, Canada, p. 215. 219. McKinley, T.O., Rudert, M.J., Koos, D.K., Pedersen, D.R., Baer, T.E., Tochigi, Y., Marsh, J.L., Brown, T.D.: Whole-Cycle Contact Stress, Contact Stress Directional Gradient, and Loading Rate Changes in an Ankle Incongruity Model. 5th Combined Meeting of the Orthopaedic Research Societies of the U.S.A., Canada, Japan and Europe, October 10–13, 2004, Banff, Alberta, Canada, p. 064. 220. McKinley, T.O., Rudert, M.J., Koos, D.K., Pedersen, D.R., Baer, T.E., Tochigi, Y., Marsh, J.L., Brown, T.D.: Time-Variant Contact Stress, Contact Stress Directional Gradient, and Loading Rate Changes in an Ankle Incongruity Model. 5th Combined Meeting of the Orthopaedic Research Societies of the U.S.A., Canada, Japan and Europe, October 10–13, 2004, Banff, Alberta, Canada, p. 276. 221. Stewart, K.J., Pedersen, D.R., Callaghan, J.J., Brown, T.D.: Capsule Representation in a Total Hip Dislocation Finite Element Model. 5th Combined Meeting of the Orthopaedic Research Societies of the U.S.A., Canada, Japan and Europe, October 10–13, 2004, Banff, Alberta, Canada, p. 107. 222. Tochigi, Y., Suh, J-S., Amendola, A., Pedersen, D.R., Saltzman, C.L.: Radiographic Determination of AP Tibio-Talar Position: Sensitivity of Three Measures to Ankle Positional 53 College of Medicine Curriculum Vitae Douglas Ray Pedersen cChanges. 5th Combined Meeting of the Orthopaedic Research Societies of the U.S.A., Canada, Japan and Europe, October 10–13, 2004, Banff, Alberta, Canada. Poster Presentation: Poster #279. 223. McKinley, T.O., Rudert, M.J., Koos, D.K., Pedersen, D.R., Baer, T.E., Tochigi, Y., Marsh, J.L., Brown, T.D.: Time-Variant Contact Stress, Contact Stress Directional Gradient, and Loading Rate Changes in an Ankle Incongruity Model. 9th International Society for Fracture Repair, November 2–11, 2004, Bologna, Italy, Poster #47. Abstract S23. 224. Kallemeyn, N.A., Grosland, N.M., Pedersen, D.R., Martin, J.A., Heiner, A.D., Brown, T.D.: Heterogeneity of Shear Stress Modulation in Triaxial Compression of Cartilage. 1st Annual Upper Midwest ASB Regional Student Meeting, November 12–13, 2004, Minneapolis, Minnesota. Session: Bone and Soft Tissue Characterization , Paper #10. 225. Pedersen, D.R., Shivanna, K.H., Russell, M.E., Grosland, N.M.: Cyclic Cartilage Stress Elevations in Dysplastic Hips. 9th World Congress of the Osteoarthritis Research Society International, December 2–5, 2004, Chicago, Illinois, S47–48. 226. Kallemeyn, N., Grosland, N.M., Pedersen, D.R., Martin J., Heiner, A.D., Brown, T.D.: Heterogeneity of Shear Stress Modulation in Triaxial Compression of Cartilage. 9 th World Congress of the Osteoarthritis Research Society International, December 2–5, 2004, Chicago, Illinois, S103. 227. Baer, T.E., Pedersen, D.R., Rudert, M.J., Kallemeyn, N.A., Grosland, N.M., Brown, T.D.: Traveling-Wave Calibration of Intra-Articular Sheet Array Pressure Sensors. 9th World Congress of the Osteoarthritis Research Society International, December 2–5, 2004, Chicago, Illinois, S125. 228. Lundberg, H.J., Pedersen, D.R., Muste, M.V., Baer, T.E., Brown, T.D.: Quantifying Fluid Ingress to the Joint Space During THA Subluxation. University of Iowa College of Engineering 3rd Annual Research Open House, April 7, 2005, Iowa City, Iowa. 229. Shivanna, K.H., Pedersen, D.R., Grosland, N.M.: Finite Element Mesh Generation of Synovial Joints. University of Iowa College of Engineering 3rd Annual Research Open House, April 7, 2005, Iowa City, Iowa. (Abstract and Poster Presentation) 230. Anderson DD, Goldsworthy JK, Shivanna KH, Grosland NM, Pedersen DR, Thomas TP, Tochigi Y, Marsh JL, Brown TD. Patient-specific finite element analysis of intra-articular chronic stress exposure of the ankle during stance phase of gait. 10th International Symposium on Computer Simulation in Biomechanics (ISCSB - 2005) , July 28–July 30, 2005, Cleveland, Ohio. 54 College of Medicine Curriculum Vitae Douglas Ray Pedersen 231. Baer, T.E., Pedersen, D.R., Rudert, M.J., Kallemeyn, N.A., Grosland, N.M., Brown, T.D.: Calibration and Monitoring of Piezoresistive Contact Stress Arrays Using a Traveling Pressure Wave Protocol. XXth Congress of the International Society of Biomechanics and 29th Annual Meeting of the American Society of Biomechanics, July 31–August 5, 2005, Cleveland, Ohio. Abstract #1165. 232. Goetz, J.E., Baer, T.E., Kurriger, G., Pedersen, D.R., Brown,T.D.: Three Dimensional Multiscale Reconstruction of Emu Femoral Head Osteonecrosis: From Cell to Organ Level. XXth Congress of the International Society of Biomechanics and 29th Annual Meeting of the American Society of Biomechanics, July 31–August 5, 2005, Cleveland, Ohio. Bone 1: Abstract # 977. 233. Goldsworthy, J.K., Anderson, D.D., Shivanna, K.H., Grosland, N.M., Pedersen, D.R., Brown, T.D.: Chronic Stress Exposure Following Intra-Articular Ankle Fractures. XXth Congress of the International Society of Biomechanics and 29th Annual Meeting of the American Society of Biomechanics, July 31–August 5, 2005, Cleveland, Ohio. Ankle: Abstract #1246. 234. Kallemeyn, N.A., Grosland, N.M., Pedersen, D.R., Martin, J.A., Heiner, A.D., Brown,T.D.: A Finite Element Analysis of Cartilage in Cyclic Triaxial Compression. XXth Congress of the International Society of Biomechanics and 29th Annual Meeting of the American Society of Biomechanics, July 31–August 5, 2005, Cleveland, Ohio. Osteoarthritis and Cartilage: Abstract #568. 235. Lundberg, H.J., Pedersen, D.R., Muste, M.V., Baer, T.E., Brown, T.D.: Quantifying Fluid Ingress to the Joint Space During Total Hip Implant Subluxation. XXth Congress of the International Society of Biomechanics and 29th Annual Meeting of the American Society of Biomechanics, July 31–August 5, 2005, Cleveland, Ohio. Joint Mechanics: Abstract #512. 236. Callaghan JJ, Teusink MJ, Liu SS, Sullivan J, Goetz DD, Vittetoe DA, Pedersen DR, Johnston RC. Cementless acetabular fixation in patients under 50 years of age: A 10–18 year follow-up study. Hip Society Summer Meeting, September 22–24, 2005, Pittsburgh, Pennsylvania. 237. Pedersen, D.R., Stewart, K.J., Brown,T.D., Callaghan, J.J.: Capsule Defect Influences on Total Hip Dislocation Propensity—A Finite Element Exploration. BMES 2005 Annual Fall Meeting: The Changing Face of Biomedical Engineering: Celebration of the Whitaker Foundation, September 28–October 1, 2005, Baltimore, Maryland. Abstract #0726. 238. Goldsworthy, J.K., Anderson, D.D., Shivanna, K., Grosland, N.M., Pedersen, D.R., Thomas, T.P., Tochigi, Y., Marsh, J.L., Brown, T.D.: Patient-Specific Computer Modeling of Degeneration Propensity Due to Aberrant Contact Stress Exposure Following Intra-Articular 55 College of Medicine Curriculum Vitae Douglas Ray Pedersen Fracture of the Ankle. 10th World Congress on Osteoarthritis, December 8–11, 2005, Boston, Massachusetts. pp. S82–83. 239. Pedersen, D.R., Martin, J.A.: Chondrocyte Fiducials For Analysis of Cartilage Strain Heterogeneity During Dynamic Cyclic Loading. 6th Symposium of ICRS 2006, January 8–11, 2006, San Diego, California. 240. Conzemius MG, Robinson DA, Theis LI, Waxman A, Evans R, Derrick T, Goetz JE, Pedersen DR, Brown TD. Characterization of ground reaction forces in the normal emu. 2nd World Veterinary Orthopaedic Congress, Keystone, Colorado, February 25–March 4, 2006. 241. Brown, T.D., Derrick, T.R., Pedersen, D.R., Goetz, J.E., Robinson, D.A., Conzemius, M.G.: Stance-Phase Kinematics and Kinetics of Emu Level Walking. 52nd Annual Meeting of the Orthopaedic Research Society, March 19–22, 2006, Chicago, Illinois. 242. Goldsworthy, J.K., Anderson, D.D., Shivanna, K., Grosland, N.M., Pedersen, D.R., Thomas, T.P., Tochigi, Y., Marsh, J.L., Brown, T.D.: Patient-Specific Modeling of Degeneration Propensity Following Intra-Articular Fracture of the Ankle. 52nd Annual Meeting of the Orthopaedic Research Society, March 19–22, 2006, Chicago, Illinois. 243. Goldsworthy, J.K., Anderson, D.D., Pedersen, D.R., Tochigi, Y., Brown, T.D.: Achieving Physiologic Rotation in Patient-Specific Contact Stress Analysis of the Ankle. 52nd Annual Meeting of the Orthopaedic Research Society, March 19–22, 2006, Chicago, Illinois. 244. Kallemeyn, N.A., Grosland, N.M., Pedersen, D.R., Martin, J.A., Heiner, A.D., Brown, T.D.: A Poroelastic Finite Element Analysis of Cartilage in Dynamic Triaxial Compression. 52nd Annual Meeting of the Orthopaedic Research Society, March 19–22, 2006, Chicago, Illinois. 245. Lundberg, H.J., Pedersen, D.R., Brown, T.D.: Effects of Femoral Head Size on Fluid Ingress During Impingement/Subluxation. 52nd Annual Meeting of the Orthopaedic Research Society, March 19–22, 2006, Chicago, Illinois. 246. McKinley TO, Rudert MJ, Tochigi Y, Pedersen DR, Brown TD. Cartilage contact pressure elevations associated with articular surface incongruity and unstable joint motion. 52nd Annual Meeting of the Orthopaedic Research Society, March 19–22, 2006, Chicago, Illinois. 247. Pedersen, D.R., Chung, Y.Y., Callaghan, J.J., Brown, T.D.: Wear Direction Versus Wear Rate in 3rd Body-Challenged THA Cohorts. 52nd Annual Meeting of the Orthopaedic Research Society, March 19–22, 2006, Chicago, Illinois. 56 College of Medicine Curriculum Vitae Douglas Ray Pedersen 248. Pedersen, D.R., Russell, M.E., Shivanna, K.H., Grosland, N.M.: Cartilage Contact Pressure Elevations in Dysplastic Hips. 52nd Annual Meeting of the Orthopaedic Research Society, March 19–22, 2006, Chicago, Illinois. 249. Shivanna, K.H., Grosland, N.M., Russell, M.E., Brown, T.D., Pedersen, D.R.: Cartilage Contact Pressure Elevations in Dysplastic Hhips After Ganz Osteotomy. 52nd Annual Meeting of the Orthopaedic Research Society, March 19–22, 2006, Chicago, Illinois. 250. Stewart KJ, Pedersen DR, Callaghan JJ, Brown TD. Capsular Atrophy and Detachment Influences on THA Dislocation Propensity: A finite Element Model Exploration. 52 nd Annual Meeting of the Orthopaedic Research Society, March 19–22, 2006, Chicago, Illinois. 251. Dahl KA, Pedersen DR, Callaghan JJ, Goetz DD, Vittetoe DA, Sullivan PM, Young-Yool C, Johnston RC. The effect of cable debris on acetabular construct durability in cemented THA at 19–20 year follow-up. 73rd Annual Meeting of the American Academy of Orthopaedic Surgeons, March 22–26, 2006, Chicago, Illinois. 252. Goldsworthy JK, Anderson DD, Rudert MJ, Tochigi Y, Pedersen, DR, Brown TD. Validation of a patient-specific finite element model of the Ankle. 14th Annual Symposium on Computational Methods in Orthopaedic Biomechanics, March 18, 2006, Chicago, Illinois. 253. Goreham-Voss CM, Rudert MJ, Brown TD. Poroelestic finite element analysis of a step-off articular incongruity. 14th Annual Symposium on Computational Methods in Orthopaedic Biomechanics, March 18, 2006, Chicago, Illinois. 254. Goetz JE, Baer TE, Kurriger GL, Pedersen DR, Robinson DA, Conzemius MG, Brown, TD. Three-dimensional histologic evaluation of osteonecrotic lesion volume in the emu femoral head. 2006 Midwest Graduate Student Biomechanics Symposium (MWGSBS), March 31–April 1, 2006, Milwaukee, Wisconsin. 255. Goldsworthy JK, Anderson DD, Rudert MJ, Tochigi Y, Pedersen DR, Brown TD. Validation of a patient-specific finite element model of the ankle. 2006 Midwest Graduate Student Biomechanics Symposium (MWGSBS), March 31–April 1, 2006, Milwaukee, Wisconsin. Outstanding Research Award Winner. 256. Lundberg HJ, Pedersen DR, Brown TD. Effects of femoral head size on fluid ingress during THA impingement/subluxation. 2006 Midwest Graduate Student Biomechanics Symposium (MWGSBS), March 31–April 1, 2006, Milwaukee, Wisconsin. 57 College of Medicine Curriculum Vitae Douglas Ray Pedersen 257. Lundberg HJ, Pedersen DR, Brown TD. Effects of femoral head size on fluid ingress during THA impingement/subluxation. The University of Iowa College of Engineering 4th Annual College of Engineering Research Open House, April 20, 2006, Iowa City, Iowa. 258. Thedens DR, Pedersen DR, Martin JA, Brown TD. T1rho imaging of mechanically stressed human cartilage. ISMRM 14th Scientific Meeting, May 6–12, 2006, Seattle, Washington. 259. Lundberg HJ, Pedersen DR, Callaghan JJ, Brown TD. Effects of implant design parameters on fluid ingress during THA impingement/subluxation. 5 th World Congress on Biomechanics, July 29–August 4, 2006, Munich, Germany. Abstract S138. 260. Goetz JE, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. Multi-scale geometric measurements of experimentally induced osteonecrotic lesions in an emu model. 30th Annual Meeting of the American Society of Biomechanics, September 6–9, 2006, Blacksburg, Virginia. Abstract ID #134. 261. Goetz JE, Derrick TR, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. Anatomy-based model of normal emu during gait. 30th Annual Meeting of the American Society of Biomechanics, September 6–9, 2006, Blacksburg, Virginia. Abstract ID #210. 262. Goldsworthy JK, Anderson DD, Rudert MJ, Tochigi Y, Pedersen DR, Brown TD. Validation of a patient-specific finite element model of the ankle. 30th Annual Meeting of the American Society of Biomechanics, September 6–9, 2006, Blacksburg, Virginia. Abstract ID #212. MicroStrain Award Winner. 263. Lundberg HJ, Pedersen DR, Callaghan JJ, Brown TD. Effects of implant design parameters on fluid ingress during THA impingement/subluxation. 30th Annual Meeting of the American Society of Biomechanics September 6–9, 2006, Blacksburg, Virginia. Abstract ID #27. 264. Tochigi Y, Rudert MJ, McKinley TO, Pedersen DR, Brown TD. Cartilage contact stress aberration during unstable joint motion. 30 th Annual Meeting of the American Society of Biomechanics, September 6–9, 2006, Blacksburg, Virginia. Abstract ID #206. 265. Callaghan JJ, O’Rourke MR, Liu SS, Pedersen DR, Johnston RC. Follow-up of a cemented collared matte finish femoral component at 19 to 20 years. Closed Meeting of the Hip Society, Iowa City, Iowa, September 7–9, 2006. 266. Callaghan JJ, Lundberg HJ, Liu SS, Pedersen DR, O’Rourke MR, Goetz DD, Vittetoe DA, Clohisy J, Brown TD. Analysis of retrieved acetabular liners for impingement damage and embedded third body debris. Closed Meeting of the Hip Society, Iowa City, Iowa, September 7– 9, 2006. 58 College of Medicine Curriculum Vitae Douglas Ray Pedersen 267. Lundberg HJ, Callaghan JJ, Liu SS, Pedersen DR, O’Rourke MR, Goetz DD, Vittetoe DA, Clohisy J, Brown TD. Analysis of retrieved acetabular liners for impingement damage and embedded third body debris. The Hip Society Summer Meeting, September 7–9, 2006, Iowa City, Iowa. 268. Yehyawi TM, Callaghan JJ, O’Rourke MR, Pedersen DR, Liu SS. Implications of sagittal femoral bowing on knee arthritis and total knee arthroplasty. University of Iowa College of Medicine Student Research Day, University of Iowa, September 8, 2006, Iowa City, Iowa. 269. Callaghan JJ, Yehyawi TM, O’Rourke MR, Pedersen DR, Liu SS, Clark CR. Implications of sagittal femoral bowing on knee arthritis and total knee replacement. Knee Society Interim Meeting September 28–30, 2006, Alexandria, Virginia. 270. Callaghan JJ, Yehyawi TM, O’Rourke MR, Liu SS, Pedersen DR. Implication of sagittal femoral bowing on knee arthritis and total knee replacement. 16 th Annual Meeting of the American Association of Hip and Knee Surgeons, November 3–5, 2006, Dallas, Texas. 271. Callaghan JJ, Altenburg A, Leinen JA, Dahl KA, Pedersen DR, Liu SS, Goetz DD, Vittetoe DA, Sullivan PM, Chung YY, Johnston RC. The effect of cable debris on acetabular construct durability in cemented total hip arthroplasty at nineteen to twenty year follow-up. 16th Annual Meeting of the American Association of Hip and Knee Surgeons, November 3–5, 2006, Dallas, Texas. 272. Goetz JE, Pedersen DR, Brown TD. Thermal property determination of emu cancellous bone using finite element modeling. 15th Annual Symposium on Computational Methods in Orthopaedic Biomechanics, February 10, 2007, University of California - San Diego, La Jolla, California. 273. Mittelholtz KS, Pedersen DR, Mendoza SA, Mayer HM, Siepe C, Hall RM, Brown TD. Finite element analysis of total disc replacement wear. 15th Annual Symposium on Computational Methods in Orthopaedic Biomechanics, February 10, 2007, University of California - San Diego, La Jolla, California. 274. Moussavi-Harami SF, Pedersen DR, Martin JA, Brown TD. Quantitative image analysis of cartilage histology. 15th Annual Symposium on Computational Methods in Orthopaedic Biomechanics, February 10, 2007, University of California - San Diego, La Jolla, California. 275. Rumery MP, Pedersen DR, Brown TD, Mendoza SA, Mayer HM, Siepe C, Hall RM. Performance of a novel pose-based technique for measuring total disc replacement wear. 15th 59 College of Medicine Curriculum Vitae Douglas Ray Pedersen Annual Symposium on Computational Methods in Orthopaedic Biomechanics, February 10, 2007, University of California - San Diego, La Jolla, California. 276. Goetz JE, Derrick TR, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. A gait-based anatomic analysis of emu hip joint loading. 53rd Annual Meeting of the Orthopaedic Research Society, February 11–14, 2007, San Diego, California. Abstract Submission 3927A19255. 277. Goetz JE, Derrick TR, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. Evaluation of osteonecrotic lesion volume in the emu femoral head by three dimensional histology. 53rd Annual Meeting of the Orthopaedic Research Society, February 11–14, 2007, San Diego, California. Abstract Submission 3569A1669. 278. Hecht BA, Martin JA, Pedersen DR, Heiner AD, Amendola R, Buckwalter JA. Oxidant preconditioning protects cartilage from mechanically-induced cell death. 53rd Annual Meeting of the Orthopaedic Research Society, February 11–14, 2007, San Diego, California. San Diego, California. Abstract Submission 3022A10781. 279. Lundberg HJ, Liu SS, Pedersen DR, Callaghan JJ, Brown TD. Analysis of retrieved acetabular liners for impingement damage and embedded third body debris. 53rd Annual Meeting of the Orthopaedic Research Society, February 11–14, 2007, San Diego, California. Abstract Submission 3774A11780. 280. Martin JA, Pedersen DR, Heiner AD, Buckwalter JA, Brown TD. N-acetyl cysteine protects cartilage from loading-induced proteoglycan loss. 53rd Annual Meeting of the Orthopaedic Research Society, February 11–14, 2007, San Diego, California. Abstract Submission 3055A18930. 281. Moussavi-Harami SF, Pedersen DR, Martin JA, Brown TD. Automated objective scoring of osteoarthritis severity. 53rd Annual Meeting of the Orthopaedic Research Society, February 11– 14, 2007, San Diego, California. Abstract Submission 3332A10740. 282. Stroud NJ, Martin JA, Pedersen DR, Goetz JE, Brown TD. Structure and function of emu versus human articular cartilage. 53rd Annual Meeting of the Orthopaedic Research Society, February 11–14, 2007, San Diego, California. Abstract Submission 3276A24173. 283. Thedens DR, Pedersen DR, Martin JA, Brown TD. Assessment of mechanically stressed human cartilage with T1ρ imaging. 53rd Annual Meeting of the Orthopaedic Research Society, February 11–14, 2007, San Diego, California. Abstract Submission 4029A3931. 284. Tochigi Y, Rudert MJ, McKinley TO, Pedersen DR, Brown TD. An experimental model of joint instability for study of dynamic cartilage contact mechanics. 53rd Annual Meeting of the 60 College of Medicine Curriculum Vitae Douglas Ray Pedersen Orthopaedic Research Society, February 11–14, 2007, San Diego, California. Abstract Submission 1140A14915. 285. Yehyawi TM, Callaghan JJ, O’Rourke MR, Liu SS, Pedersen DR. Implications of sagittal femoral bowing on knee arthritis and total knee replacement. 53rd Annual Meeting of the Orthopaedic Research Society, February 11–14, 2007, San Diego, California. Abstract Submission 2997A2271. 286. McKinley TO, Tochigi Y, Rudert MJ, Pedersen DR, Brown TD. Instability -associated changes in contact stress and contact stress rates in human ankles. 74th Annual Meeting of the American Academy of Orthopaedic Surgeons, February 14–18, 2007, San Diego, California. 287. Callaghan JJ, Lundberg HJ, Liu SS, Pedersen DR, O’Rourke MR, Goetz DD, Vittetoe DA, Clohisy J, Brown TD. Analysis of retrieved acetabular liners for impingement damage and embedded third body debris. 2007 Annual Meeting of the Mid-America Orthopaedic Association, April 11–15, 2007, Boca Raton, Florida. 288. Yehyawi T, Callaghan JJ, O’Rourke MR, Liu SS, Pedersen DR. Implication of sagittal femoral bowing on knee arthritis and total knee replacement. 2007 Annual Meeting of the Mid-America Orthopaedic Association, April 11–15, 2007, Boca Raton, Florida. 289. Mittelholtz KS, Pedersen DR, Mendoza SA, Mayer HM, Siepe C, Hall RM, Brown TD. Finite element analysis of total disc replacement wear. 7 th Annual Meeting of the Spine Arthroplasty Society, May 1–4, 2007, Berlin, Germany. 290. Rumery MP, Pedersen DR, Brown TD, Mendoza SA, Mayer HM, Siepe C, Hall RM. Accuracy of a novel pose-based technique for in-vivo measurement of total disc replacement wear. 7 th Annual Meeting of the Spine Arthroplasty Society, May 1–4, 2007, Berlin, Germany. 291. Thedens DR, Martin JA, Pedersen DR, Brown TD. Detection of proteoglycan depletion in mechanically loaded cartilage with T1&[rho] imaging. ISMRM-ESMRMB Joint Annual Meeting, May 19–25, 2007, Berlin, Germany. 292. Callaghan JJ, Leinen JA, Liu SS, Klaassen AL, Pedersen DR. Three to five year radiographic follow-up of moderately cross-linked Marathon polyethylene in total hip replacement. 120 th Annual Meeting of the American Orthopaedic Association, Asheville, North Carolina, June 13– 16, 2007. 293. Callaghan JJ, Donigan JA, Teusink MJ, Warth LC, Liu SS, Sullivan J, Goetz DD, Vittetoe DA, Pedersen DR, Johnston RC. Cementless acetabular fixation in patients age 50 and under: a 10 61 College of Medicine Curriculum Vitae Douglas Ray Pedersen to 18 year follow-up study. 120th Annual Meeting of the American Orthopaedic Association, June 13–16, 2007, Asheville, North Carolina . 294. Callaghan JJ, Lundberg HJ, Liu SS, Pedersen DR, O’Rourke MR, Goetz DD, Vittetoe DA, Clohisy JC, Brown TD. Analysis of retrieved acetabular liners for impingement damage and embedded third body debris. 120th Annual Meeting of the American Orthopaedic Association, Asheville, North Carolina, June 13–16, 2007. 295. Callaghan JJ, Altenburg A, Yehyawi TM, Dahl KA, Pedersen DR, Liu SS, Goetz DD, Vittetoe DA,Sullivan PM, Chung YY, Johnston RC. The effect of cable debris on acetabular construct durability in cemented total hip arthroplasty at nineteen to twenty year follow-up. 120th Annual Meeting of the American Orthopaedic Association, June 13–16, 2007, Asheville, North Carolina. 296. Heiner AD, Lundberg HJ, Baer TE, Pedersen DR, Callaghan JJ, Brown TD. Episodic subluxation increases third body ingress and embedment in the THA bearing surface. 31 st Annual Meeting of the American Society of Biomechanics, August 22–25, 2007, Stanford, California. Abstract ID #263. 297. Tochigi Y, Rudert MJ, McKinley TO, Pedersen DR, Brown TD. Correlation of dynamic cartilage contact stress aberration with severity of joint instability. 31 st Annual Meeting of the American Society of Biomechanics, August 22–25, 2007, Stanford, California. Abstract ID #213. 298. Brown TD, Pedersen DR, Stewart KJ, Callaghan JJ. Biomechanical studies of total hip impingement/dislocation. (Invited Plenary Lecture) 15 th Triennial Congress of the Asian Pacific Orthopaedic Association (APOA) 2007, September 11, 2007, Seoul, Korea, p. 136. 299. Brown TD, Goetz JE, Pedersen DR, Conzemius MG. The emu as a bipedal animal model of femoral head osteonecrosis. (Seminar) Biomedical Engineering Technology Institute, Yonsei University, September 13, 2007, Seoul, South Korea. 300. Brown TD, Rumery MP, Mittelholtz K, Pedersen DR, Mendoza SA. New computational techniques to assess wear of total disc replacement implants. (Seminar) Biomedical Institute, Solco Biomedical Co., Ltd., September 14, 2007, Pyungteak, Korea. 301. Goetz JE, Derrick TR, Pedersen DR, Robinson DA, Conzemius MG, Brown, TD. Contact forces in the emu hip joint during normal walking. 6th Combined Meeting of the Orthopaedic Research Societies, October 20–24, 2007, Honolulu, Hawaii. Paper No. 243. Podium Presentation Session 27: Gait and Function. 62 College of Medicine Curriculum Vitae Douglas Ray Pedersen 302. Callaghan JJ, Yehyawi TM, O’Rourke MR, Pedersen DR, Liu SS. Implications of sagittal femoral bowing on knee arthritis and total knee replacement. American Association of Hip and Knee Surgeons 17th Annual Meeting, November 2–4, 2007, Dallas, Texas. 303. Moussavi-Harami SF, Pedersen DR, Martin JA, Hillis SL, Brown TD. Comparison of the ICRS versus HHGS (Mankin) cartilage histology scales. OARSI World Congress on Osteoarthrits 2007, December 6–9, 2007, Ft. Lauderdale, Florida. Abstract 07-A-119-OARSI. Osteoarthritis Cartilage 2007;15(Suppl C):C127. 304. Moussavi-Harami SF, Pedersen DR, Martin JA, Hillis SL, Brown TD. Automated objective scoring of cartilage histology. OARSI World Congress on Osteoarthrits 2007, December 6–9, 2007, Ft. Lauderdale, Florida. Abstract 07-A-87-OARSI. Osteoarthritis Cartilage 2007;15(Suppl C):C166. 305. Goetz JE, Pedersen DR, Robinson DA, Conzemius MG, Brown, TD. A finite element study of the structural effects of lesion morphology in a bipedal animal model of femoral head osteonecrosis. 16th Annual Symposium on Computational Methods in Orthopaedic Biomechanics, Saturday, March 1st, 2008, University of California-San Francisco, San Francisco, California. 306. Brown TD, Rumery M, Pedersen DR, Mendoza SA. A pose-based image analysis technique for measuring wear of total disc replacements. 54th Annual Meeting of the Orthopaedic Research Society, March 2–5, 2008, San Francisco, California. Abstract ID: 399689. 307. Heiner AD, Lundberg HJ, Baer TE, Pedersen DR, Callaghan JJ, Brown TD. Episodic subluxation increases third body ingress and embedment in the THA bearing surface. 54th Annual Meeting of the Orthopaedic Research Society, March 2–5, 2008, San Francisco, California. Abstract ID: 387622. 308. Ramakrishnan PS, Stroud NJ, Pedersen DR, Buckwalter J A, Martin JA. Time dependent mechanical changes in cartilage after single blunt impact injury in vitro bovine osteochondral model. 54th Annual Meeting of the Orthopaedic Research Society, March 2–5, 2008, San Francisco, California. Abstract ID: 393569. 309. Stroud NJ, Ramakrishnan PS, Pedersen DR, BrownTD, Martin JA. Characterization of emu and bovine tissue response to injury. 54th Annual Meeting of the Orthopaedic Research Society, March 2–5, 2008, San Francisco, California. Abstract ID: 398565. 63 College of Medicine Curriculum Vitae Douglas Ray Pedersen 310. Callaghan JJ, Lundberg HJ, Liu SS, Pedersen DR, O’Rourke MR, Goetz DD, Vittetoe DA, Clohisy J, Brown TD. Analysis of retrieved acetabular liners for impingement damage and embedded third body debris. 75 th Annual Meeting of theAmerican Academy of Orthopaedic Surgeons, March 5–9, 2008, San Francisco, California. 311. Mittelholtz K, Pedersen DR, Mendoza SA, Mayer HM, Siepe C, Hall RM, Brown TD. Finite element analysis of total disc replacement wear. Spine Arthroplasty Society, Global Symposium on Motion Preservation Technology 8th Annual Meeting, May 6–9, 2008, Miami, Florida. Abstract A-066-0001-00431. 312. Rumery MP, Pedersen DR, Mendoza SA, Siepe C, Mayer HM, Brown TD. A pose-based image analysis technique for measuring wear of total disc replacements.Spine Arthroplasty Society, Global Symposium on Motion Preservation Technology 8th Annual Meeting, May 6–9, 2008, Miami, Florida. Abstract A-066-0001-00436. 313. Thedens DR, Martin JA, Mastbergen S, DeGroot J, Tadimalla S, Pedersen DR. Age, DJD, OA: AGE, GAG, T1ρ MRI. 2nd Annual Workshop on Imaging Based Measures of Osteoarthritis, June 25–28, 2008, Boston, Massachusetts. 314. Amendola RL, Martin JA, Kurriger GL, Moussavi-Harami SF, Brown TD, Pedersen DR. Automated Mankin scoring of osteoarthritis severity in rabbits. The North American Congress on Biomechanics (NACOB 2008), August 5–9, 2008, Ann Arbor, Michigan.Abstract ID364. 315. McCabe DJ, Stroud NJ, Pedersen DR, Martin JA. An innovative method to analyze the chondrocyte response to mechanical injury both temporally and spatially. The North American Congress on Biomechanics (NACOB 2008), August 5–9, 2008, Ann Arbor, Michigan. Abstract ID #123. 316. Pedersen DR, Thedens DR, Martin JA, Tadimalla S, Ramakrishnan PS, Amendola A. ACL rupture in an in vivo impact model. The North American Congress on Biomechanics (NACOB 2008), August 5–9, 2008, Ann Arbor, Michigan. Abstract ID 362. 317. Goreham-Voss CM, McCabe DJ, Rudert MJ, Martin JA, Pedersen DR, Brown TD. Spatial correlations between local impact stress and cell death distributions. OARSI World Congress on Osteoarthritis 2008, September 18–21, 2008, Rome, Italy. Abstract 07-A-292-OARSI. 318. McCabe DJ, Stroud NJ, Ramakrishnan P, Buckwalter JA, Pedersen DR, Martin JA. Intracellular oxidant production by chondrocytes in osteochondral explants following blunt impact injury. OARSI World Congress on Osteoarthritis 2008, September 18–21, 2008, Rome, Italy. Poster Presentation #187. Osteoarthritis Cartilage 2008;16(Supp 4);S91–S92. 64 College of Medicine Curriculum Vitae Douglas Ray Pedersen 319. Amendola RL, Martin JA, Kurriger GL, Moussavi-Harami, SF, Brown TD, Pedersen DR. Automated Mankin grading of OA severity in rabbits. 55th Annual Meeting of the Orthopaedic Research Society, February 22–25, 2009, Las Vegas, Nevada. Abstract ID: ORS2009-1020. 320. Goetz JE, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. Effects of lesion location on collapse propensity in the emu model of femoral head osteoecrosis. 55th Annual Meeting of the Orthopaedic Research Society, February 22–25, 2009, Las Vegas, Nevada. Abstract ID: ORS2009-1793. 321. Goetz JE, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. Thermal history determinants of cryogenically-induced osteonecrosis in emu cancellous bone. 55th Annual Meeting of the Orthopaedic Research Society,February 22–25, 2009, Las Vegas, Nevada. Abstract ID: ORS2009-1846. 322. Goetz JE, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. Increased incidence of femoral head collapse in the emu model of osteonecrosis following a drill guide-positioned cryoprobe insult. 55th Annual Meeting of the Orthopaedic Research Society, February 22–25, 2009, Las Vegas, Nevada. Abstract ID: ORS2009-2041. 323. Goetz JE, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. Comparison of bone mineralization rates between avian and mammalian models of femoral head osteonecrosis. 55 th Annual Meeting of the Orthopaedic Research Society, February 22–25, 2009, Las Vegas, Nevada. Abstract ID: ORS2009-2712. 324. Pedersen DR, Martin JA, Mastbergen S, DeGroot J, Tadimalla S, Thedens DR. AGE effects on PG-sensitive T1 MRI. 55th Annual Meeting of the Orthopaedic Research Society, February 22–25, 2009, Las Vegas, Nevada. Abstract ID: ORS2009-1903. 325. Ramakrishnan P, Stroud N, McCabe D, Pedersen DR. Repeated measures improves detection of early degenerative changes after cartilage injury. 55th Annual Meeting of the Orthopaedic Research Society, February 22–25, 2009, Las Vegas, Nevada. Abstract ID: ORS2009-2820. 326. Stroud NJ, McCabe D, Goodwin W, Pedersen DR, Martin JA. An innovative method for analysis of the distribution and timing of chondrocyte responses to mechanical injury in vitro. 55th Annual Meeting of the Orthopaedic Research Society, February 22–25, 2009, Las Vegas, Nevada. Abstract ID: ORS2009-1014. 327. Tadimalla S, Thedens DR, Martin JA, Amendola A, Pedersen DR. Cartilage health post-ACL injury: T1ρ and dGEMRIC measurements. 55th Annual Meeting of the Orthopaedic Research Society, February 22–25, 2009, Las Vegas, Nevada. Abstract ID: ORS2009-2958. 65 College of Medicine Curriculum Vitae Douglas Ray Pedersen 328. Elkins JM, Pedersen DR, Tochigi Y, Callaghan JJ, Weiss JA, Andersen AE, Brown TD. Incorporating the hip capsule in a dynamic finite element model of total hip arthroplasty. Carver College of Medicine, College of Pharmacy, College of Public Health and VA Health System Research Week, April 14–15, 2009, Iowa City, Iowa. 329. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Impingement contact mechanics of hard-onhard total hip bearings. Carver College of Medicine, College of Pharmacy, College of Public Health and VA Health System Research Week, April 14–15, 2009, Iowa City, Iowa. 330. Stroud NJ, McCabe DJ, Goodwin WG, Pedersen DR, Martin JA. An innovative method for analysis of chondrocyte responses to mechanical injury in vitro both spatially and temporally. The University of Iowa College of Engineering’s Research Open House, April 16, 2009, Iowa City, Iowa. 331. Thedens DR, Tadimalla S, Martin JA, Amendola A, Pedersen DR. T1 assessment of human cartilage in an impact injury model. International Society for Magnetic Resonance in Medicine th 17 Scientific Meeting & Exhibition, Honolulu, Hawaii, April 18–24, 2009. Abstract 4319. 332. Pedersen DR, Tadimalla S, Thedens DR, Martin JA, Amendola A. Same day T1, T2 and dGEMRIC measurements of cartilage post-ACL injury. 3rd International OA imaging Workshop Osteoarthritis Imaging: Capitalising on the Knowledge Investment, May 13–16, 2009, York, United Kingdom. 333. Brown TD, Lundberg HJ, Pedersen DR, Callaghan JJ. Clinical biomechanics of third body acceleration of total hip wear. 61st Annual Meeting of the Association of Bone and Joint Surgeons, May 13–17, 2009, Maui, Hawaii. 334. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Orientation-dependent impingement contact mechanics for hard-on-hard total hip bearings. 33rd Annual Meeting of the American Society of Biomechanics, August 26–29, 2009, State College, Pennsylvania. Abstract Submission #1028. 335. Williams G, Allen E, Wu J, Rudert MJ, Pedersen DR. Assessment of the Pressore Step™ system as an extended wear weightbearing activity monitor for use with orthopaedic patients. 33rd Annual Meeting of the American Society of Biomechanics, August 26–29, 2009, State College, Pennsylvania. Abstract Submission #1222. 336. Thedens DR, Tadimalla S, Martin JA, Amendola A, Pedersen DR. T1rho assessment of human cartilage impact injury model. OARSI World Congress on Osteoarthritis 2009, September 10– 13, 2009, Montreal, Quebec, Canada. Osteoarthritis Cartilage 2009;17(Supp 1):S226–227. 66 College of Medicine Curriculum Vitae Douglas Ray Pedersen 337. Pedersen, DR, Elkins JM, Callaghan JJ, Brown TD. Impingement contact mechanics of total hip bearings. Closed Scientific Meeting of the Hip Society September 24–26, 2009, Palo Alto, California. 338. Williams GN, Thedens DR, Tadimalla S, Amendola A, Pedersen DR. T1rho imaging of cartilage in the first year after ACL injury. Segal North American Osteoarthritis Workshop III, October 1–3, 2009, Chigago, Illinois. 339. Elkins JM, Pedersen DR, Tochigi Y, Rudert MJ, Ellis BJ, Callaghan JJ, Weiss JA, Brown TD. Implementing a fiber-directed anisotropic capsule in a total hip arthroplasty dislocation finite element model. 56th Annual Meeting of the Orthopaedic Research Society, March 6–9, 2010, New Orleans, Louisiana. Abstract ID: ORS2010-1837. 340. Elkins JM, Pedersen DR, Tochigi Y, Rudert MJ, Ellis BJ, Callaghan JJ, Weiss JA, Brown TD. Effect of cup orientation on resistance to hip dislocation during flexion/exorotation-dominated kinetic challenge. 56th Annual Meeting of the Orthopaedic Research Society, March 6–9, 2010, New Orleans, Louisiana. Abstract ID: ORS2010-1856. 341. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Impingement contact mechanics for hard-onhard total hip bearings. 56th Annual Meeting of the Orthopaedic Research Society, March 6–9, 2010, New Orleans, Louisiana. Abstract ID: ORS2010-1791. 342. Kang L, Baer TE, Rudert MJ, Pedersen DR, Brown TD. An iterative calibration algorithm for transient contact stress sensor grids. 56th Annual Meeting of the Orthopaedic Research Society, March 6–9, 2010, New Orleans, Louisiana. Abstract ID: ORS2010-1761. 343. Seol DR, Choe HH, Jang KW, Lehman AD, Homandberg G, Heiner AD, Ramakrishnan PS, Lim TH, Martin JA, Pedersen DR. Effect of impact-induced chemical factors on bovine articular cartilage: A cell proliferation and migration study. 56th Annual Meeting of the Orthopaedic Research Society, March 6–9, 2010, New Orleans, Louisiana. Abstract ID: ORS2010-3050. 344. Thedens DR, Klocke NF, Martin JA, Baer TE, Pedersen DR. Effect of B0 magnetic field changes on quantitative T1 relaxation measurements. 56th Annual Meeting of the Orthopaedic Research Society, March 6–9, 2010, New Orleans, Louisiana. Abstract ID: ORS2010-3313. 345. Klocke NF, Thedens DR, Martin JA, Brown TD, Pedersen DR. Semi-automatic canny edge detected line profiles through the lateral femoral condyle in normal subjects using articular cartilage-specific MRI. The University of Iowa College of Engineering’s Research Open House, April 8, 2010, Iowa City, Iowa. 67 College of Medicine Curriculum Vitae Douglas Ray Pedersen 346. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Impingement contact mechanics for hard-onhard total hip bearings. The Carver College of Medicine, College of Pharmacy, College of Public Health, Institute for Clinical and Translational Science and VA Health System Research Week, April 13–15, 2010, Iowa City, Iowa. 347. Thedens DR, Klocke NF, Amendola A, Pedersen DR. Semi-automated profile generation for functional cartilage imaging. ISMRM/ESMRMB Joint Annual Meeting, May 1–7, 2010, Stockholm, Sweden. Abstract 3894. 348. Thedens DR, Klocke NF, Martin JA, Baer TE, Pedersen DR. Effect of B0 magnetic field changes on quantitative T1r relaxation measurements. 4 th International Workshop on Imaging Based Measures of Osteoarthritis. June 2–4, 2010 Vancouver, Canada. 349. Klocke NF, Thedens DR, Martin JA, Amendola A, Brown TD, Pedersen DR. A line profile approach to quantify PTOA using T1rho MRI. 6th World Congress on Biomechanics, August 1– 6, 2010, Suntec City, Singapore. Abstract Submission ID : WCB-A01535-02855. 350. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. The capsule’s contribution to total hip construct stability—A finite element analysis. 34th Annual Meeting of the American Society of Biomechanics, August 18–21, 2010, Providence, Rhode Island. Abstract ID: 270. 351. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Three dimensional fracture mechanics of ceramic total hip bearings. 34th Annual Meeting of the American Society of Biomechanics, August 18–21, 2010, Providence, Rhode Island. Abstract ID: 274. 352. Klocke NF, Thedens DR, Martin JA, Amendola A, Brown TD, Pedersen DR. A line profile approach to quantify PTOA using T1r MRI. 34th Annual Meeting of the American Society of Biomechanics, August 18–21, 2010, Providence, Rhode Island. Abstract ID: 294. 353. Thedens DR, Klocke NF, Martin JA, Baer TE, Pedersen DR. Effect of B0 magnetic field changes on quantitative T1 relaxation measurements. 2010 Osteoarthritis Research Society International (OARSI) World Congress, September 23–26, 2010, Brussels, Belgium. Abstract 10-A-472-OARSI. 354. Pedersen DR, Thedens DR, Klocke NF, Amendola A. Semi-automated profile generation for functional cartilage imaging. 7th Combined Meeting of the Orthopaedic Research Societies (CORS), October 16–20, 2010, Kyoto, Japan. Abstract submission number: 2010E-0434. 355. Elkins JM, Stroud NJ, Pedersen DR, Tochigi Y, Rudert MJ, Callaghan JJ, Weiss JA, Brown TD. The effect of regional hip capsule defects on total hip dislocation stability — A finite element 68 College of Medicine Curriculum Vitae Douglas Ray Pedersen analysis. 57th Annual Meeting of the Orthopaedic Research Society, January 13–16, 2011, Long Beach, California. ORS Harris Award, Abstract ID: 929790. 356. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Total hip instability in the morbidly obese patient — A finite element exploration. 57th Annual Meeting of the Orthopaedic Research Society, January 13–16, 2011, Long Beach, California. Abstract ID: 929795. Paper #0014. 357. Klocke NF, Thedens DR, Amendola A, Martin JA, Pedersen DR. Sensitivity of T1ρ MRI to cartilage injury after acute ACL rupture. 57th Annual Meeting of the Orthopaedic Research Society, January 13–16, 2011, Long Beach, California. Abstract ID: 936172. 358. Teusink MJ, Callaghan KA, Klocke NF, Pedersen DR, Johnston RC, Callaghan JJ. Femoral remodeling around well-fixed cemented Charnley total hip Arthroplasty: A minimum twenty year follow-up study. 57th Annual Meeting of the Orthopaedic Research Society, January 13–16, 2011, Long Beach, California. Abstract ID 935446. 359. Klocke NF, Thedens DR, Martin JA, Amendola A, Pedersen DR, Brown TD. Comparison of compositional cartilage changes after ACL rupture as detected by T1ρ MRI. 9th Annual College of Engineering Research Open House, April 7, 2011, Iowa City, IA. Poster Presentation. 360. Elkins JM, Pedersen DR, Tochigi Y, Callaghan JJ, Brown TD. The effect of variable capsulorrhaphy on total hip stability. The Carver College of Medicine, College of Pharmacy, College of Public Health, Institute for Clinical and Translational Science and VA Health System Translational Genomics Health Sciences Research Week, April 13, 2011, Iowa City, Iowa. 361. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Fracture mechanics of ceramic total hip liners during impingement. The Carver College of Medicine, College of Pharmacy, College of Public Health, Institute for Clinical and Translational Science and VA Health System Translational Genomics Health Sciences Research Week, April 13, 2011, Iowa City, Iowa. 362. Elkins JM, Pedersen DR, Yack JH, Callaghan JJ, Brown TD.Increased risk of dislocation in morbidly obese total hip patients—A finite element analysis. The Carver College of Medicine, College of Pharmacy, College of Public Health, Institute for Clinical and Translational Science and VA Health System Translational Genomics Health Sciences Research Week, April 13, 2011, Iowa City, Iowa. 363. Elkins JM, Kruger KM, Pedersen DR, Callaghan JJ, Brown TD. The influence of total hip cup geometry on edge-loading severity in metal-on-metal bearings. The Carver College of Medicine, College of Pharmacy, College of Public Health, Institute for Clinical and Translational Science 69 College of Medicine Curriculum Vitae Douglas Ray Pedersen and VA Health System Translational Genomics Health Sciences Research Week, April 13, 2011, Iowa City, Iowa. 364. Thedens DR, Klocke NF, Martin JA, Baer TE, Pedersen DR. Consistency of T1 measurements: A phantom study. ISMRM Annual Meeting, May 9–12, 2011, Montréal, Québec, Canada. 365. Teusink, Matthew J; Callaghan, Katharine A.; Klocke, Noelle F; Pedersen, Douglas R; Johnston, Richard C; Callaghan, John J. Femoral Remodeling Around Well-Fixed Cemented Charnley Total Hip Arthroplasty: A Minimum Twenty Year Follow-Up Study. AAOS Annual Meeting, San Diego, California. February 15-18, 2011. Poster 366. Klocke NF, Thedens DR, Amendola A, Pedersen DR, Brown TD. Towards T1rho in the clinic: A 3.0T and 1.5T comparison. OARSI 5th International Workshop on Osteoarthritis Imaging, June 8–11, 2011, Salzburg, Austria. 367. Elkins JM, Pedersen DR, Sing B, Yack JH, Callaghan JJ, Brown TD. Dislocation in the morbidly obese total hip patient. 35th Annual Meeting of the American Society of Biomechanics, August 10–13, 2011, Long Beach, California. Abstract ID: 424. 368. Klocke NF, Thedens DR, Amendola A, Pedersen DR. Effects of spin-lock time selection in T1rho relaxometry. OARSI World Congress on Osteoarthritis 2011, September 15–18, 2011, San Diego, California. 369. Elkins JM, Brown TD, Pedersen DR, Callaghan JJ. Advanced Fracture Analysis of 36-mm Alumina Total Hip Bearings. Summer Meeting of The Hip Society, September 22-24, 2011. Joint Implant Surgeons, Inc. New Albany, Ohio 370. Ryan K. Takenaga, MA, MD; Nicholas A. Bedard, BS; Steve S. Liu, MD; Alison L. Klaassen, MA; Douglas R. Pedersen, PhD; John J. Callaghan, MD. Cementless THA in Patients Age 50 and Under at Minimum 10-Year Follow-Up: What Can Be Learned Concerning Durability of the Construct? Poster, AAHKS 11/7/2011 371. Ryan K. Takenaga, MA, MD; Nicholas A. Bedard, BS; Steve S. Liu, MD; Alison L. Klaassen, MA; Douglas R. Pedersen, PhD; John J. Callaghan, MD. Do We Need Pedometer Data to Differentiate Long-Term Function Following Total Hip Replacement? Podium, AAHKS 11/7/2011. 372. Elkins JM, Pedersen DR, Singh B, Yack HJ, Callaghan JJ, Brown TD. Dislocation in the Morbidly Obese Total Hip Patient. 35th Annual Meeting of the American Society of 70 College of Medicine Curriculum Vitae Douglas Ray Pedersen Biomechanics, August 18–21, 2011, Long Beach, California. Podium presentation, Orthopedics Session 373. Elkins JM, Brown TD, Pedersen DR, Callaghan JJ. Advanced Fracture Analysis of 36-mm Alumina Total Hip Bearings. Closed 2011 Scientific Meeting of the Hip Society. September 2224, 2011. New Albany, Ohio 374. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Bone-on-Bone vs. Implant Impingement in Large Diameter Total Hips. 58th Annual Meeting of the Orthopaedic Research Society, February 4-7, San Francisco, California. 375. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Toward Optimizing Orientation in Metal-onMetal Total Hips: Balancing Competing Considerations. 58th Annual Meeting of the Orthopaedic Research Society, February 4-7, San Francisco, California. 376. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Edge-Scraping Wear in Metal-on-Metal Total Hips. 58th Annual Meeting of the Orthopaedic Research Society, February 4-7, San Francisco, California. 377. Elkins JM, Liu X, Pedersen DR, Callaghan JJ, Brown TD. Computational Fracture Analysis of Ceramic-on-Ceramic Total Hip Liners. 58th Annual Meeting of the Orthopaedic Research Society, February 4-7, San Francisco, California. 378. Thomas Brown, PhD; Jacob Elkins, MS; Douglas Pedersen, PhD, John Callaghan, MD. Impingement and Dislocation in Total Hip Arthroplasty: Mechanisms and Consequences. Kappa Delta/OREF Clinical Research Award Paper. Combined 2012 Annual Meetings of the Orthopaedic Research Society and the American Academy of Orthopaedic Surgeons, San Francisco, CA. February 4-11, 2012 379. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Balancing Competing Considerations for Optimal Orientation in 36-mm Metal-on-Metal Total Hips. The 2012 American Academy of Orthopaedic Surgeons (AAOS) Annual Meeting. February 7-11, 2012, San Francisco, California. Podium Presentation. Paper #311 380. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Dislocation Risk in Morbidly Obese Total Hip Patients. 30th Annual Meeting of Mid-America Orthopaedic Association. April 18-22, 2012. Bonita Springs, Florida. 381. Takenaga RK, Bedard NA, Liu SS, Klaassen AL, Pedersen DR, Callaghan JJ. Cementless Total Hip Arthroplasty in Patients Age 50 and Under at Minimum 10 year Follow-Up: What Can Be Learned Concerning Durability of the Construct? Annual Meeting of the Mid-America 71 College of Medicine Curriculum Vitae Douglas Ray Pedersen Orthopaedic Society, Bonita Springs, FA. April 18-22, 2012. 2012 E.W. Johnson, Jr. MD Physician in Training Award. 382. Takenaga RK, Bedard NA, Liu SS, Klaassen AL, Pedersen DR, Callaghan JJ. Do We Need Pedometer Data to Differentiate Long-Term Function Following Total Hip Replacement? Annual Meeting of the Mid-America Orthopaedic Society, Bonita Springs, FA. April 18-22, 2012. 383. Teusink MJ, Callaghan K, Klocke N, Pedersen DR, Johnston RC, Callaghan JJ. Femoral Remodeling Around Well-Fixed Cemented Charnley Total Hip Arthroplasty: A Minimum 20-year Follow-Up Study. Annual Meeting of the Mid-America Orthopaedic Society, Bonita Springs, FA. April 18-22, 2012. 384. Pedersen DR. Acute Articular Cartilage Changes Following ACL injury: The T1 qMRI Perspective. The ABC Fellows program, UI Sports Medicine, June 9, 2012. 385. Pedersen DR, Martin JA, Klocke NF, Thedens DR, Williams GL, Amendola A. Biopsies and Imaging at ACL Reconstruction. Combined Osteoarthritis Initiative Imaging/ OARSI Biomarkers workshop, July 12-14, 2012, Hilton Head, SC. 386. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Expedited computational analysis of fracture of ceramic THA liners: Obesity and stripe wear considerations. The 2012 American Society of Biomechanics Annual Meeting. August 17th, 2012, Gainesville, Florida. Podium presentation: Computational Modeling. 387. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Biomechanical principles of failure in total hip arthroplasty. The ASB Young Scientist Award Presentation. The 2012 American Society of Biomechanics Annual Meeting. August 17th, 2012, Gainesville, Florida. 388. Callaghan JJ, Takenaga RK, Bedard NA, Pedersen DR. Long Term Follow-Up Of Cementless THA For The Treatment Of Osteonecrosis: Have We Improved Compared To Cemented THA? Closed Meeting of The Hip Society, September 13-15, 2012, Mayo Clinics, Rochester, MN. 389. Johnston RC, Teusink MJ, Pedersen DR, Callaghan JJ. Femoral Remodeling Around WellFixed Cemented Charnley Total Hip Arthroplasty: A Minimum Twenty Year Follow-Up Study. Closed Meeting of The Hip Society, September 13-15, 2012, Mayo Clinics, Rochester, MN. 390. D.R. Pedersen, J.A. Martin, D.R. Thedens, N.F. Klocke, N.H. Roberts, J.E. Goetz, A. Amendola. Imaging Biopsy Composition at ACL Reconstruction. ORS 2013. – accepted 391. Daniel R Thedens, Casey P Johnson, James A Martin, Thomas E Baer, Vincent A Magnotta, and Douglas R Pedersen. SNR Considerations for Quantitative T1ρ Imaging. ISMRM 2013 72 College of Medicine Curriculum Vitae Douglas Ray Pedersen 392. Daniel R Thedens, Casey P Johnson, James A Martin, Thomas E Baer, Vincent A Magnotta, and Douglas R Pedersen. SNR Considerations for Quantitative T1ρ Imaging. OARSI 2013 Review of Manuscripts Journal of Biomechanics, Journal of Biomechanical Engineering, Journal of Bone and Joint Surgery, Journal of Orthopaedic Research, Computer Methods in Biomechanics and Biomedical Engineering, Clinical Orthopaedics and Related and Research, Journal of Medical Engineering and Physics, Annals of Biomedical Engineering, Journal of Engineering in Medicine, Journal of Orthopedic Surgery and Research, Journal of Medical Devices, Orthopedic Research and Reviews Review of Proposals Arthritis Research Campaign National Institutes of Health (NIH) Orthopaedic (SBIR/STTR) NIH OSR 3 times/year 2010-2013 Theses A Finite Element Analysis of Acetabular Reconstruction. Masters Thesis, Mechanical Engineering, The University of Iowa, 1983. MRI-Based Finite Element Models of Surgically Achieved Fibular Graft Placement for Osteonecrosis of the Femoral Head. PhD Dissertation, Biomedical Engineering, The University of Iowa, 1998. Books, Chapters, Reports, and Miscellaneous Thedens DR, Martin JA, Pedersen DR. (2007) Magnetic Resonance Imaging of Cartilage: New Imaging and Clinical Approaches. In J. Buckwalter, M. Lotz and J.-F. Stoltz (Eds.) OA, Inflammation and Degradation: A Continuum, Volume 70: Biomedical and Health Research, pp. 239–253. Fairfax, VA: IOP Press. Areas of Research Interest Biomedical Engineering and Orthopaedic Biomechanics Long-term follow-up of total joint replacement (Hip, Knee, Ankle) Assessment of natural bone-preserving treatments to postpone/eliminate need for total joint replacement Quantified measures of natural bone morphology histories of normal and affected joints Current Projects Kinematics and Biomechanics of Hip Dislocation Contact Biomechanics of Articular Joints Biomechanics of Hip and Knee Reconstruction Long-term follow-up Clinical Studies/Wear Database Cartilage-specific MRI and injury severity assessment Digital Histology Grants Received (Ongoing or Completed During the Last 3 Years) Innovations to Assess and Forestall Post-Traumatic Osteoarthritis – NIH 2 P50 AR055533-06 73 College of Medicine Curriculum Vitae Douglas Ray Pedersen 09/01/12-08/31/17, $7,327,573 Total Costs Joseph A. Buckwalter, M.D., CORT Director Thomas D. Brown, Ph.D., CORT Associate-Director Project 2: Piloting Treatments and Diagnostic Tools for Post-Traumatic OA in Vivo 09/01/12-08/31/17, $1,854,097 Total Costs Douglas R. Pedersen, Ph.D., Principal Investigator Annunziato Amendola, M.D., Investigator Douglas C. Fredericks, Investigator James A. Martin Ph.D., Investigator Todd McKinley, M.D., Investigator Daniel Thedens, Ph.D., Investigator Yuki Tochigi, Ph.D., M.D., Investigator Cartilage-Specific MRI Assessment of KineSpring Performance – Moximed SOAR US Pilot IDE Study 12/12/12-12/12/15 Principal Investigator Non-Surgical Treatment of Arthrofibrosis – U.S. Department of Defense 07/01/14-06/30/15 $1,084,233 Total Costs James Martin, Ph.D., Principal Investigator Annunziato Amendola, M.D., Douglas Fredericks, Jessica Goetz, Ph.D., Douglas Pedersen, Ph.D., Edward Sander, Ph.D., Investigators Intra-articular Lubricin Gene Therapy for Post-Traumatic Arthritis – U.S. Department of Defense 07/01/14-06/30/15 $735,776 Total Costs James Martin, Ph.D., Principal Investigator Doug Fredericks, Douglas Pedersen, Ph.D., Prem Ramakrishnan, Ph.D., Hongjun Zheng, Ph.D., Investigators New Approaches to Assess and Forestall Osteoarthritis in Injured Joints—NIH 5 P50 AR055533 09/10/07–08/31/2012, $8,222,427 Total Costs Joseph A. Buckwalter, M.D., CORT Director Thomas D. Brown, Ph.D., CORT Associate-Director Project 3: Validation and Application of MRI Biomarkers in Assessing Articular Cartilage Health 09/10/07–08/31/2012, $1,081,167 Total Costs Douglas R. Pedersen, Ph.D., Principal Investigator Annunziato Amendola, M.D., Co-Principal Investigator James A. Martin, Ph.D., Daniel R. Thedens, Glenn Williams, Ph.D., Investigators Biomechanics of Total Hip Impingement & Dislocation—Department of Veterans Affairs 10/01/07–09/30/2011, $549,500 Total Costs John J. Callaghan, M.D., Principal Investigator Thomas D. Brown, Ph.D., H. John Yack, Ph.D., Co-Investigators Douglas R. Pedersen, Ph.D., Investigator 74 College of Medicine Curriculum Vitae Douglas Ray Pedersen Wear Analysis of Intervertebral Disc Replacements—NIH 5 R01 AR052653 09/22/2005–09/29/2011, $2,496,667 Total Costs Thomas D. Brown, Ph.D., Principal Investigator John Fisher, Ph.D., Richard M. Hall, Ph.D., Eileen Ingham, Ph.D., Heinz-Michael Mayer, M.D., Ph.D., Sergio A. Mendoza, M.D., Douglas R. Pedersen, Ph.D., Co-Investigators Implant/Construct Interactions in the Biomechanics of Total Hip Dislocation—NIH 1 R01 AR053553 09/25/2006–08/31/2011, $1,207,471 Total Costs Thomas D. Brown, Ph.D., Principal Investigator John J. Callaghan, M.D., Jeffrey A. Weiss, Ph.D., Co-Investigators Douglas R. Pedersen, Ph.D., Melvin J. Rudert, Ph.D., Yuki Tochigi, M.D., Ph.D., Investigators Submitted Research Proposals: Integrating Biology and Mechanics on the Path to OA – NIH R01 09/01/14-08/31/18 Total Requested Funds $1,617,217 Role: Principal Investigator Presentations 1. Crowninshield RD, Brand RA, Johnston RC, Pedersen DR. A Comparison of Steel and Titanium Femoral Components in Total Hip Arthroplasty. Paper presented at: Orthopaedic Research Society; February, 1980; Atlanta, Georgia. 2. Crowninshield RD, Brand RA, Johnston RC, Pedersen DR. A Comparison of Steel and Titanium Femoral Components in Total Hip Arthroplasty. Paper presented at: Fifth Annual College of Medicine Research Day; April 17–18, 1980; The University of Iowa Hospitals, Iowa City, Iowa. 3. Crowninshield RD, Brand RA, Johnston RC, Pedersen DR. An Analysis of Femoral Prosthesis Design - The Effects on Proximal Femur Loading. Paper presented at: Ninth Open Scientific Meeting of the Hip Society; February, 1981; Las Vegas, Nevada. 4. Pedersen DR, Crowninshield RD, Brand RA. An Analysis of Acetabular Component Design. Paper presented at: 27th Annual Meeting of the Orthopaedic Research Society; February, 1981; Las Vegas, Nevada. 5. Pedersen DR, Crowninshield RD, Brand RA. An Analysis of Acetabular Component Design. Paper presented at: Sixth Annual College of Medicine Research Day; April, 1981; The University of Iowa, Iowa City, Iowa. 6. Brand RA, Crowninshield RD, Pedersen DR. Architecture of the Periacetabular Trabecular Bone. Paper presented at: 28th Annual Meeting of the Orthopaedic Research Society; January 19–21, 1982; New Orleans, Louisiana. 75 College of Medicine 7. Curriculum Vitae Douglas Ray Pedersen Brand RA, Crowninshield RD, Pedersen DR, Gabel RH. Hip Forces in Activities of Daily Living. Paper presented at: Seventh Annual College of Medicine Research Day; April, 1982; The University of Iowa, Iowa City, Iowa. 8. Crowninshield RD, Murase K, Pedersen DR. An Analysis of Tibial Component Design in Total Knee Arthroplasty. Paper presented at: 28th Annual Meeting of the Orthopaedic Research Society; January 19–21, 1982; New Orleans, Louisiana. 9. Murase K, Tsukahara S, Saito S, Crowninshield RD, Pedersen DR. A Finite Element Analysis of Tibial Component Design in Total Knee Arthroplasty. Paper presented at: 8th International Congress of Biomechanics, 1982; Nagoya, Japan. 10. Blair WF, Gabel RH, Pedersen DR, Greene ER. A Method for Programmed, Rapid Range Control Advance with the 20 MHz PUDVM. Paper presented at: Rocky Mountain Bioengineering Symposium; April, 1983; Rochester, Minnesota. 11. Blair WF, Pedersen DR. The 20MHz Pulsed Ultrasonic Doppler Velocity Meter: A Method for Assessing Flow in Small Vessels. Paper presented at: Seventh Annual Conference of the American Society of Biomechanics; September 28–30, 1983; Rochester, Minnesota. 12. Blair WF, Pedersen DR, Joos K, Bondi D. A Hemodynamic Comparison of Interrupted and Continuous Microarteriorraphy Techniques. Paper presented at: American Association of Hand Surgery; October 30, 1983; Dallas, Texas. 13. Brand RA, van Krieken FM, Pedersen DR, Crowninshield RD. Prediction of Muscle and Joint Loads After Segmental Femur Replacement for Osteosarcoma. Paper presented at: Eighth Annual College of Medicine Research Day; April 21–22, 1983; University of Iowa, Iowa City, Iowa. 14. Crowninshield RD, Pedersen DR, Brand RA, Johnston RC. Analytical Support for Acetabular Component Metal Backing. Paper presented at: Eleventh Open Scientific Meeting of the Hip Society; March 9, 1983; Anaheim, California. 15. Crowninshield RD, Johnston RC, Brand RA, Pedersen DR, Wilson MA, Tolbert JR. An Engineering Analysis of Total Hip Component Design. Paper presented at: 50th Annual Meeting of the American Academy of Orthopaedic Surgeons; March 10–15, 1983; Anaheim, California. 16. Pedersen DR, Brand RA. Computer Modeling of Proximal Femur Osteotomies. Paper presented at: Seventh Annual Conference of the American Society of Biomechanics; September 28–30, 1983; Rochester, Minnesota. 76 College of Medicine Curriculum Vitae Douglas Ray Pedersen 17. van Krieken FM, Pedersen DR, Brand RA, Crowninshield RD. Hip and Knee Muscle and Joint Force Predictions in Simulated Tumor Resections. Paper presented at: 29th Annual Meeting of the Orthopaedic Research Society; March 8–10, 1983; Anaheim, California. 18. Brand RA, Pedersen DR. Computer Modeling of Surgery and a Consideration of the Mechanical Effects of Proximal Femoral Osteotomies. Paper presented at: Twelfth Open Scientific Meeting of The Hip Society; February, 1984; Atlanta, Georgia. 19. Brand RA, Pedersen DR. Computer Modeling of Proximal Femoral Osteotomies. Paper presented at: Ninth Annual College of Medicine Research Day; April 26–27, 1984; The University of Iowa, Iowa City, Iowa. 20. Brand RA, Pedersen DR. Computer Modeling of Surgery and a Consideration of the Mechanical Effects of Proximal Femoral Osteotomies. Paper presented at: Fourth Meeting of the European Society of Biomechanics; September 23–26, 1984; Davos, Switzerland. 21. Brown TD, Gabel RH, Pedersen DR, Bell LD, Blair WF. Some Characteristics of Laminar Flow Velocity Spectra Detected by a 20 MHz Pulsed Ultrasound Doppler. Paper presented at: Eighth Annual Meeting of the American Society of Biomechanics; October 3–5, 1984; Tucson, Arizona. 22. Pedersen DR, Brand RA. Changes in Three-Dimensional Muscle Geometry as a Result of Femoral Intertrochanteric Osteotomies. Paper presented at: 30th Annual Meeting of the Orthopaedic Research Society; February 6–9, 1984; Atlanta, Georgia. 23. Pedersen DR, Brown TD, Singerman RJ. Quantitation of Fuji Prescale Film Pressures Using Digital Image Scanning. Paper presented at: Eighth Annual Meeting of the American Society of Biomechanics; October 3–5, 1984; Tucson, Arizona. 24. Brown TD, Gabel RH, Bell LD, Pedersen DR, Blair WF. Performance Characteristics of a 20 MHz Pulsed Ultrasound Doppler Velocimeter for Studies of Microvascular Hemodynamics. Paper presented at: American Society of Mechanical Engineers Biomechanics Symposium; June 24–26, 1985; Albuquerque, New Mexico. 25. Brown TD, Pedersen DR, Radin EL, Rose RM. Mechanical Consequences of Fibrous Membrane Formation at the Bone/Cement Interface in Proximal Femoral Arthroplasty. Paper presented at: Ninth Annual Meeting of the American Society of Biomechanics; October 2–4, 1985; Ann Arbor, Michigan. 26. Callaghan JJ, Brand RA, Pedersen DR. Hip Arthrodesis. A Long-Term Follow-Up. Paper presented at: 52nd Annual Meeting of the American Academy of Orthopaedic Surgeons; January 26, 1985; Las Vegas, Nevada. 77 College of Medicine Curriculum Vitae Douglas Ray Pedersen 27. Singerman RJ, Pedersen DR, Brown TD. Quantitation of Fuji Prescale Film Pressures Using Digital Image Scanning. Paper presented at: College of Medicine Research Day X; May 9–10, 1985; The University of Iowa , Iowa City, Iowa. 28. Brown TD, Pedersen DR, Radin EL, Rose RM. Global Mechanical Consequences of Bone/Cement Interface Degradation in Proximal Femoral Arthroplasty. Paper presented at: 32nd Annual Meeting of the Orthopaedic Research Society; February 17–20, 1986; New Orleans, Louisiana. 29. Brown TD, Pedersen DR, Singerman RJ. Load Transmission Through the Proximal Femur in Early Childhood. Paper presented at: 32nd Annual Meeting of the Orthopaedic Research Society; February 17–20, 1986; New Orleans, Louisiana. 30. Pedersen DR, Cheng CK, Brand RA. Muscle Force Estimations Using Nonlinear Programming. Paper presented at: 32nd Annual Meeting of the Orthopaedic Research Society; February 17– 20, 1986; New Orleans, Louisiana. 31. Pedersen DR, Anderson DD, Singerman RJ, Brown TD. Prescale Film Pressure Quantification. Paper presented at: 98th Session of the Iowa Academy of Science; April 25–26, 1986; Wartburg College, Waverly, Iowa. 32. Vrahas MS, Brown TD, Andrews JG, Brand RA, Pedersen DR. In-vivo Measurements of Passive Moments of the Human Hip. Paper presented at: Combined meeting of the North American Congress on Biomechanics, the Tenth Annual Conference of The American Society of Biomechanics, and the Fourth Biannual Conference of the Canadian Society for Biomechanics; August 25–27, 1986; Montreal, Canada. 33. Bell AL, Brand RA, Pedersen DR. Prediction of Hip Joint Center Location from External Landmarks. Paper presented at: Eleventh Annual Conference of the American Society Biomechanics; September, 1987; University of California at Davis. 34. Brown TD, Anderson DD, Nepola JV, Singerman RJ, Pedersen DR, Brand RA. Contact Stress Aberrations Following Imprecise Reduction of Intra-Articular Fractures. Paper presented at: 33rd Annual Meeting of the Orthopaedic Research Society; January 19–22, 1987; San Francisco, California. 35. Feinberg JH, Pedersen DR, Brand RA. A Model to Predict the Muscular Anatomy of the Pelvic Limbs of the Dog. Paper presented at: Eleventh Annual Conference of the American Society Biomechanics; September, 1987; University of California at Davis. 78 College of Medicine Curriculum Vitae Douglas Ray Pedersen 36. Vrahas MS, Brown TD, Andrews JG, Brand RA, Pedersen DR. In Vivo Passive Moment Measurements in the Human Hip. Paper presented at: 33rd Annual Meeting of the Orthopaedic Research Society; January 19–22, 1987; San Francisco, California. 37. Vrahas MS, Brown TD, Andrews JG, Brand RA, Pedersen DR. In Vivo Passive Moment Measurements in the Human Hip. Paper presented at: Twelfth Annual College of Medicine Research Day; April 23–24, 1987; The University of Iowa, Iowa City, Iowa. 38. Bell AL, Brand RA, Pedersen DR. Prediction of Hip Joint Center Location from External Landmarks. Paper presented at: 34th Annual Meeting of the Orthopaedic Research Society; February 1–4, 1988; Atlanta, Georgia. 39. Brown TD, Rubin CT, Brand RA, Pedersen DR, Gray ML. Stress/Strain Field Correlations with New Periosteal Bone Deposition Patterns in the Functionally Isolated Turkey Ulna. Paper presented at: Sixth Meeting of the Society of Biomechanics; September 11–15, 1988; University of Bristol, United Kingdom. 40. Feinberg JH, Pedersen DR, Brand RA. A Model to Predict the Muscular Anatomy of the Pelvic Limbs of the Dog. Paper presented at: 34th Annual Meeting of the Orthopaedic Research Society; February 1–4, 1988; Atlanta, Georgia. 41. Feinberg JH, Pedersen DR, Brand RA. A Model to Predict the Muscular Anatomy of the Pelvic Limbs of the Dog. Paper presented at: College of Medicine Research Day XIII; April, 1988; The University of Iowa, Iowa City, Iowa. 42. Pedersen DR, Brown TD, Gray ML, Rubin CT, Brand RA. A Finite Element Analysis of Strain Distributions in the Functionally Isolated Turkey Ulna. Paper presented at: 34th Annual Meeting of the Orthopaedic Research Society; February 1–4, 1988; Atlanta, Georgia. 43. Pedersen DR, Feinberg JH, Brand RA. Modeling of Canine Pelvic Limb Muscular Anatomy. Paper presented at: 100th Meeting of the Iowa Academy of Sciences; April, 1988; Ames, Iowa. 44. Bell AL, Brand RA, Pedersen DR. Prediction of Hip Joint Center Location from External Landmarks. Paper presented at: College of Medicine Research Day XIII; April, 19, 1989; The University of Iowa, Iowa City, Iowa. 45. Bell AL, Pedersen DR, Brand RA. A Comparison of the Accuracy of Several Hip Joint Center Location Prediction Methods. Paper presented at: 35th Annual Meeting of the Orthopaedic Research Society; February 6–9, 1989; Las Vegas, Nevada. 79 College of Medicine Curriculum Vitae Douglas Ray Pedersen 46. Brand RA, Pedersen DR, Davy DT, Heiple KG, Goldberg VM. Comparison of Hip Joint Force Calculations and Measurements in the Same Patient. Paper presented at: 35th Annual Meeting of the Orthopaedic Research Society; February 6–9, 1989; Las Vegas, Nevada. 47. Brand RA, Pedersen DR, Davy DT, Heiple KG, Goldberg VM. Hip Force Calculations and Measurements in the Same Patient. Paper presented at: 13th Annual Meeting of the American Society of Biomechanics; August 23–25, 1989; University of Vermont, Burlington, Vermont. 48. Pedersen DR, Brand RA. Knee Joint Moment Assumptions Affect Hip Joint Force Calculations. Paper presented at: 1989 Winter Annual Meeting of the American Society of Mechanical Engineers; December 10–15, 1989; San Francisco, California. 49. Pierotti SE, Pedersen DR, Brand RA. Are Leg EMG Profiles Symmetrical? Paper presented at: 35th Annual Meeting of the Orthopaedic Research Society; February 6–9, 1989; Las Vegas, Nevada. 50. Brand RA, Pedersen DR, Johnston RC. Hip Forces Resulting from Altered Hip Joint Center Location - Revisited. Paper presented at: The Hip Society 1990 Summer Meeting; September 21–22, 1990; Scottsdale, Arizona. 51. Brown TD, Rubin CT, Brand RA, Pedersen DR. A Complementary Experimental/Analytic Model to Explore Bone Remodeling. Paper presented at: European Society of Biomechanics, Biomechanics of Fracture Healing Workshop; July 12–14, 1990; Reisensurg Castle and the University of Ulm, Ulm, West Germany. 52. Pedersen DR, Brown TD, Brand RA. Bone Ingrowth Stress Distributons Within a Novel Prosthesis Anchorage Layer. Paper presented at: 36th Annual Meeting of the Orthopaedic Research Society; February 5–8, 1990; New Orleans, Louisiana. 53. Pedersen DR, Brown TD, Brand RA. Two-Dimensional FEM Micromechanics of Bone Ingrowing a Geometrically Regular Woven Titanium Net. Paper presented at: 102nd Session of the Iowa Academy of Science; April 20–21, 1990; Drake University, Des Moines, Iowa. 54. Brown TD, Baker KJ, Pedersen DR, Brand RA. Structural Aspects of Femoral Head Osteonecrosis. Paper presented at: Mechanics Computing in 1990's and Beyond, The American Society of Civil Engineers Conference; May 20–22, 1991; Columbus, Ohio. 55. Brown TD, Pedersen DR, Baker KJ, Brand RA. Mechanical Effects of Coring and Bone Grafting in Segmental Femoral Head Osteonecrosis. Paper presented at: 38th Annual Meeting of the Orthopaedic Research Society; February 17–20, 1992; Washington, D.C. 80 College of Medicine Curriculum Vitae Douglas Ray Pedersen 56. Brown TD, Pedersen DR, Rubin CT, Brand RA. Mechanical Parameters Initiating Periosteal Remodeling: A Combined Experimental and Analytical Approach. Paper presented at: 21st Annual Meeting and Exhibition of the American Association for Dental Research; March 11–14, 1992; Boston, Massachusetts. 57. Brown TD, Pedersen DR, Baker KJ, Brand RA. Mechanical Consequences of Core Drilling and Bone Grafting in Femoral Head Necrosis. Paper presented at: 1992 Summer Meeting of the Hip Society; September 10–12, 1992; Indianapolis, Indiana. 58. Brown TD, Baker KJ, Pedersen DR, Brand RA. Biomechanics of Femoral Head Aseptic Necrosis. Paper presented at: 1992 International Symposium Biomedical Engineering in the 21st Century; September 23–26, 1992; Taipei, Taiwan, R.O.C. 59. Pedersen DR, Brown TD, Banes AJ. Mechanical Behavior of a New Sustratum for StrainMediated Cell Culture Experiments. Paper presented at: Second North American Congress on Biomechanics; August 24–28, 1992; Chicago, Illinois. 60. Adams DJ, Pedersen DR, Rudert MJ, Brand RA, Rubin CT, Brown TD. Geometric Symmetry of the Turkey Ulna. Paper presented at: 17th Annual Meeting of the American Society of Biomechanics; October 21–23, 1993; Iowa City, Iowa. 61. Banes AJ, Brigman B, Tsuzaki M, et al. Role of Mechanical Challenge in Tendon Cell 2nd Messenger Signalling and Mitogenic Response to Growth Factors. Paper presented at: International Society for Fracture Repair; May 12–15, 1993; Reisensburg Castle, Germany. 62. Callaghan JJ, Pedersen DR, Olejniczak JP, Goetz DD, Johnston RC. Radiologic Wear Measurements in Five Cohorts of Total Hip Replacements. Paper presented at: International Hip Society; August, 1993; Bankok, Thailand. 63. Callaghan JJ, Pedersen DR, Olejniczak JP, Goetz DD, Johnston RC. Radiologic Wear Measurements in Five Cohorts of Total Hip Replacements. Paper presented at: Inaugural Richard C. Johnston Lectureship in Orthopaedics; October, 1993; The University of Iowa, Iowa City, Iowa. 64. Hasler EM, Herzog W, Ronsky JL, et al. Comparison Between Theoretical and Measured Contact Forces in the Cat Patellofemoral Joint. Paper presented at: XIVth International Society of Biomechanics Congress; July 4–8, 1993; Paris, France. 65. MacKenzie JR, Callaghan JJ, Pedersen DR, Brown TD. Areas of Contact and Extent of Gaps with Implantation of Oversized Acetabular Components in Total Hip Arthroplasty. Paper 81 College of Medicine Curriculum Vitae Douglas Ray Pedersen presented at: Twenty-First Open Scientific Meeting of The Hip Society; February 21, 1993; San Francisco, California. 66. Meyer SA, Brown TD, Pedersen DR, Albright JP. The Effects of Patella Infera on Patellofemoral Contact Stress. Paper presented at: 39th Annual Meeting of the Orthopaedic Research Society; February 15–18, 1993; San Francisco, California. 67. Pedersen DR, Bottlang M, Brown TD, Banes AJ. Hyperelastic Constitutive Properties of Polydimethyl Siloxane Cell Culture Membranes. Paper presented at: 1993 ASME Winter Annual Meeting; November 28–December 3, 1993; New Orleans, LA. 68. Adams DJ, Pedersen DR, Brown TD, Rubin CT, Brand RA. Formal Three-Dimensional Contralateral (A)Symmetry of the Turkey Ulna. Paper presented at: 40th Annual Meeting of the Orthopaedic Research Society; February 21–24, 1994; New Orleans, LA. 69. Adams DJ, Pedersen DR, Brown TD, Rubin CT, Brand RA. Formal Three-Dimensional Contralateral (A)Symmetry of the Turkey Ulna. Paper presented at: College of Medicine Research Day XIX; April 14–15, 1994; The University of Iowa, Iowa City, Iowa. 70. Brown TD, Adams DJ, Spirt AA, Pedersen DR, Rubin CT, Brand RA. Toward Realistic Finite Element Modelling of Adaptive Bone Remodelling in the Functionally Isolated Turkey Ulna. Paper presented at: Department of Mechanical Engineering; October 25, 1994; University of Pittsburgh, Pittsburgh, Pennsylvania. 71. Brown TD, Maxian TA, Pedersen DR, Callaghan JJ. Sliding-Distance-Coupled Finite Element Polyethylene Wear Predictions in Total Hip Arthroplasty. Contact/Impact Biomechanics. Paper presented at: Application of High Performance Computing in Engineering; October 21–22, 1994; Pittsburgh Supercomputing Center, Pittsburgh, Pennsylvania. 72. Callaghan JJ, Pedersen DR, Olejniczak JP, Goetz DD, Johnston RC. Radiographic Wear Measurements in Five Cohorts of Total Hip Replacements. Paper presented at: 40th Annual Meeting of the Orthopaedic Research Society; February 21–24, 1994; New Orleans, LA. 73. Callaghan JJ, Kim YS, Brown TD, Pedersen DR, Johnston RC. Concerns and Improvements with Cementless Metal Backed Acetabular Components. Paper presented at: Twenty-Second Open Scientific Meeting of The Hip Society; February 27, 1994; New Orleans, LA. 74. Hasler EM, Herzog W, Ronsky JL, Pedersen DR, Brown TD. Comparison of Theoretically Calculated and Measured Patellofemoral Contact Forces in the Cat Knee Joint. Paper presented at: Canadian Orthopaedic Research Society; June 12–16, 1994; Winnipeg, Manitoba, Canada. 82 College of Medicine Curriculum Vitae Douglas Ray Pedersen 75. Kim YS, Brown TD, Pedersen DR, Callaghan JJ. Reamed Surface Topology and Component Seating in Press-Fit Cementless Acetabular Fixation. Paper presented at: Second World Congress of Biomechanics; July 10–15, 1994; Amsterdam, The Netherlands. 76. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Finite Element Modeling of Polyethylene Stresses Using Industrial Tolerances for Femoral Head Sizes in Total Hip Replacements. Paper presented at: 18th Annual Meeting of the American Society of Biomechanics; October 13–15, 1994; Columbus, Ohio. 77. Meyer SA, Brown TD, Pedersen DR, Albright JP. Influence of Patella Infera on Patellofemoral Contact Stress. Paper presented at: 61st Annual Meeting of the American Academy of Orthopaedic Surgeons; February 24–March 1, 1994; New Orleans, LA. 78. Pedersen DR. Rate of In-Vivo Polyethylene Wear For Five Different Acetabular Components Used Over A Five to Twenty-Two Year Period. Paper presented at: ASTM Committee F-4 workshop on Ultra High Molecular Polyethylene Materials; May, 1994; Montreal, Canada. 79. Pedersen DR, Callaghan JJ, Olejniczak JP, Johnston RC. In-Vivo Polyethylene Wear Rates in Five Different Acetabular Components Used Over a Five to Twenty-Two Year Period. Paper presented at: BioEngineering Division PhD Competition at 1994 International Mechanical Engineering Congress and Exposition, ASME; November 6–11, 1994; Chicago, Illinois. 80. Ricos-Furio V, Pedersen DR, Brown TD, et al. Effects of Constitutive and Geometric Modelling Simplifications on Stresses Computed in the Turkey Ulna. Paper presented at: 1994 International Mechanical Engineering Congress and Exposition, BioEngineering Division; November 6–11, 1994; Chicago, Illinois. 81. Ronsky JL, Herzog W, Pedersen DR, Hasler EM, Brown TD. The Influence of Joint Alignment, Joint Stability and Muscular Force on in-situ Patellofemoral Joint. Paper presented at: Canadian Orthopaedic Research Society; June 12–16, 1994; Winnipeg, Manitoba, Canada. 82. Thornburg LE, Brown TD, Pedersen DR, Marsh JL, Brand RA. Acetabular Contact Pressures in a Cadaveric Transverse Fracture Model. Paper presented at: Surgery of the Pelvis and Acetabulum: The Second International Consensus; October 21–27, 1994; Pittsburgh, Pennsylvania. 83. Kim YS, Brown TD, Pedersen DR, Callaghan JJ. Seating of Hemispherical vs Dual Radius Components in Press-Fit Cementless Acetabular Fixation. Paper presented at: 41st Annual Meeting of the Orthopaedic Research Society; February 13–16, 1995; Orlando, Florida. 83 College of Medicine Curriculum Vitae Douglas Ray Pedersen 84. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. A Sliding-Distance-Coupled Finite Element Model for Polyethylene Wear in THA. Paper presented at: 41st Annual Meeting of the Orthopaedic Research Society; February 13–16, 1995; Orlando, Florida. 85. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Variability of Polyethylene Contact Stress Due to Current Industrial Tolerances for Femoral Head Sizes. Paper presented at: 41st Annual Meeting of the Orthopaedic Research Society; February 13–16, 1995; Orlando, Florida. 86. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Variability of Polyethylene Contact Stress Due to Current Industrial Tolerances for Femoral Head Sizes. Paper presented at: College of Medicine Research Day XIX; April 20–21, 1995; The University of Iowa, Iowa City, Iowa. 87. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Femoral Head Containment vs Polyethylene Stress Concentration in THA Extended Lip Liners. Paper presented at: 1995 ASME Summer Meeting, 1995. 88. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Adaptive Remeshing Behavior of a SlidingDistance-Coupled Contact Model of THA Wear. Paper presented at: Advances in Bioengineering, ASME Winter Annual Meeting; November 12–17, 1995; San Francisco, CA. 89. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Adaptive Remeshing Behavor of a SlidingDistance-Coupled Contact Model of THA Wear. Paper presented at: 1995 Advances in Bioengineering, 1995. 90. Pedersen DR, Brown TD, Banes AJ. Nutrient Medium Reactive Inertial Stresses During Cell Culture Mechanostimulus. Paper presented at: 41st Annual Meeting of the Orthopaedic Research Society; February 13–16, 1995; Orlando, Florida. 91. Pedersen DR. Polyethylene Wear Rates for Five Different In Vivo Acetabular Components Used ofer a Five to Twenty-two Year Period. Paper presented at: 41st Annual Meeting of the Orthopaedic Research Society; February 13–16, 1995; Orlando, Florida. 92. Ronsky JL, Herzog W, Hasler EM, Brown TD, Pedersen DR. Contact Stress Distributions on InSitu Patellofemoral Joint Cartilage Contact. Paper presented at: Bioengineering Conference, ASME Summer Meeting, 1995. 93. Thornburg LE, Brown TD, Pedersen DR, Marsh JL, Brand RA. Three-Dimensional Contact Stress Distributions for Acetabular Dome Fractures: A Re-Fracture Model to Address Site Specificity. Paper presented at: 41st Annual Meeting of the Orthopaedic Research Society; February 13–16, 1995; Orlando, Florida. 84 College of Medicine Curriculum Vitae Douglas Ray Pedersen 94. Brown TD, Pedersen DR, Maxian TA, Callaghan JJ. Determination of Directional Counterface Motion as a Factor in THA Wear Simulation. Paper presented at: 42nd Annual Meeting of the Orthopaedic Research Society, Workshop on Surface Damage in Total Joint Replacements: Kinemetic Issues; February 18–22, 1996; Atlanta, GA. 95. Brown TD, Rudert MJ, Pedersen DR, Baker KJ, Sakamoto J, Brand RA. Considerations for Computer Assisted Planning of Head-Preserving Surgery in Femoral Head Osteonecrosis. Paper presented at: Corporate Affiliates Workshop Computer-Guided Surgery and Robotics in Orthopaedics at 42nd Annual Meeting of the Orthopaedic Research Society; February 18–22, 1996; Atlanta, Georgia. 96. Brown TD, Pedersen DR, Maxian TA, Callaghan JJ. Determination of Directional Counterface Motion as a Factor in THA Wear Simulation. Paper presented at: 42nd Annual Meeting of the Orthopaedic Research Society, Workshop Surface Damage in Total Joint Replacements: Kinematic Issues; February 18–22, 1996; Atlanta, Georgia. 97. Brown TD, Bottlang M, Pedersen DR, Banes AJ. Reactive Fluid Stresses Due to Nutrient Medium Motion in a Major Class of Culture Mechanostimulus Systems. Paper presented at: 1996 Gordon Research Conference on Bioengineering and Orthopaedic Sciences 9th Biennial Meeting; July 28–August 2, 1996; Proctor Academy, Andover, NH. 98. Brown TD, Maxian TA, Pedersen DR, Callaghan JJ. A New Computer Model to Study Wear. Paper presented at: Harvard Hip Course; October 2–5, 1996; Boston, MA. 99. Brown TD, Maxian TA, Pedersen DR, Callaghan JJ. Distance Traveled Versus Load Per Unit Area. Paper presented at: Harvard Hip Course; October 2–5, 1996; Boston, MA. 100. Brown TD, Thornburg LE, Pedersen DR, Marsh JL, Brand RA. Acetabular Contact Pressures in a Cadaveric Fracture Model. Paper presented at: Surgery of the Pelvis and Acetabulum: The Third International Consensus; October 5–11, 1996; Pittsburg, PA. 101. Malkani A, Voor M, Rennirt G, Helfet D, Pedersen DR, Brown TD. Increased Peak Contact Pressure Following Incongruent Reduction of Transverse Acetabular Fractures. A Cadaveric Model. Paper presented at: Orthopaedic Trauma Association 12th Annual Meeting; September 27–29, 1996; Boston, MA. 102. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Long-Term Polyethylene Wear Rates for Total Hip Arthroplasty Determined by Adaptive Finite Element Modeling. Paper presented at: 42nd Annual Meeting of the Orthopaedic Research Society; February 18–22, 1996; Atlanta, Georgia. 85 College of Medicine Curriculum Vitae Douglas Ray Pedersen 103. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Finite Element Modeling of Dislocation Propensity in Total Hip Arthroplasty. Paper presented at: 42nd Annual Meeting of the Orthopaedic Research Society; February 18–22, 1996; Atlanta, GA. 104. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Femoral Head Containment in Total Hip Arthroplasty. Standard VS Extended Lip Liners. Paper presented at: 42nd Annual Meeting of the Orthopaedic Research Society; February 18–22, 1996; Atlanta, GA. 105. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. Three-Dimensional Sliding/Contact Computational Simulation of Acetabular Wear in THA. Paper presented at: 24th Open Scientific Meeting of The Hip Society/Second Combined Open Meeting of the Hip Society and AAHKS; February 25, 1996; Atlanta, GA. 106. Brown TD, Pedersen DR, Bottlang M, Banes AJ. Fluid-Structure Interaction as a Determinant of Nutrient Medium Reactive Stress in Mechanically Stimulated Cultures. Paper presented at: 43rd Annual Meeting of the Orthopaedic Research Society; February 9–13, 1997; San Francisco, CA. 107. Brown TD, Maxian TA, Pedersen DR, Callaghan JJ. Finite Element Studies of Bearing Surface Wear in THA. Paper presented at: Twenty-ifth Open Scientific Meeting of theHip Society and the Third Combined Open Meeting of the Hip Society and AAHKS; February 16, 1997; San Francisco, CA. 108. Brown TD, Nieman JC, Pedersen DR, Callaghan JJ. Finite Element Model of Third Body Wear. Paper presented at: The Hip Society Summer Meeting; September 11–13, 1997; New York, NY. 109. Emodi GJ, Takatsu T, Callaghan JJ, Brown T, D., Pedersen DR. The Effect of Surgically Induced Parameters on Posterior Cruciate Ligament Function Following Total Knee Arthrpolasty. Paper presented at: 43rd Annual Meeting of the Orthopaedic Research Society; February 9–13, 1997; San Francisco, CA. 110. Hop JD, Callaghan JJ, Olejniczak JP, Pedersen DR, Brown TD, Johnston RC. An In Vivo Model of Third Body Wear Contribution of Cable Debris Generation to Accelerated Polyethylene Wear and Acetabular Component Loosening. Paper presented at: Twenty-Fifth Open Scientific Meeting of the Hip Society and the Third Combined Open Meeting of the Hip Society and AAHKS; February 16, 1997; San Francisco, CA. 111. Malkani AL, Voor MJ, Rennirt GW, Helfet DL, Pedersen DR, Brown TD. Increased Peak Contact Pressure Following Incongruent Reduction of Transverse Acetabular Fractures: A Cadaveric Model. Paper presented at: 64th Annual Meeting of the American Academy of Orthopaedic Surgeons; February 13–17, 1997; San Francisco, CA. 86 College of Medicine Curriculum Vitae Douglas Ray Pedersen 112. Maxian TA, Brown TD, McKellop H, Lu B, Pedersen DR, Callaghan JJ. Direct Physical Validation of a Finite Element Model of Polyethylene Wear in Total Hip Arthroplasty. Paper presented at: 43rd Annual Meeting of the Orthopaedic Research Society; February 9–13, 1997; San Francisco, CA. 113. Maxian TA, Brown TD, Pedersen DR, Callaghan JJ. A Computational Simulation of Polyethylene Wear for Alternative Acetabular Component Fixation Modalities. Paper presented at: 43rd Annual Meeting of the Orthopaedic Research Society; February 9–13, 1997; San Francisco, CA. 114. Pedersen DR, Brown TD, Poggie RA. Finite Element Characterization of a Porous Tantalum Material for Treatment of Avascular Necrosis. Paper presented at: 43rd Annual Meeting of the Orthopaedic Research Society; February 9–13, 1997; San Francisco, CA. 115. Pedersen DR, Brown TD, Hillis SA, Callaghan JJ. Prediction of Long-Term Polyethelene Wear in THA, Based on Early Wear Measurements Made Using Digital Image Analysis. Paper presented at: 43rd Annual meeting of the Orthopaedic Research Society; February 9–13, 1997; San Francisco, CA. 116. Scifert CF, Brown TD, Pedersen DR, Callaghan JJ. Experimental Validation of a Computational Simulation of Dislocation in THA. Paper presented at: Twenty-First Annual Meeting of the American Society of Biomechanics; September 24–27, 1997; Clemson, South Carolina. 117. Scifert CF, Brown TD, Pedersen DR, Callaghan JJ. Effects of Acetabular Component Lip Design on Dislocation Resistance in THA. Paper presented at: ASME IMECE97 BED Meeting; November 16–21, 1997; Dallas, Texas. 118. Banes AJ, Tsuzaki M, Yang X, et al. Equibiaxial Strain Activates AP-1 and CRE Transcription Factors but Not NF-KB or SSRE and Upregulates CX43 mRNA in Tendon Cells In Vitro. Paper presented at: 44th Annual Meeting of the Orthopaedic Research Society; March 16–19, 1998; New Orleans, LA. 119. Banes AJ, Weinhold PS, Pedersen DR, et al. Cyclic Mechanical Load Increases DNA Synthesis in Tendon Ex Vivo. Paper presented at: First Southeastern US Tissue Engineering Conference; June 5, 1998; North Carolina Biotechnology Institute, Research Triangle Park, NC. 120. Banes AJ, Tsuzaki M, Yang X, et al. Equibiaxial Strain and Norepinephrine Activate CRE DNA Binding Protein and Expression of Connexin 43. Paper presented at: Third World Congress of Biomechanics; August 2–8, 1998; Hokkaido University, Sapporo, Japan. 87 College of Medicine Curriculum Vitae Douglas Ray Pedersen 121. Brown TD, Pedersen DR, Vandenburgh HH. Nutrient Medium Reactive Stresses in a Cell Culture Mechanostimulus Apparatus in which a Deformable Substratum is Tented by Vertical Motions of an Underlying Central Post. Paper presented at: 44th Annual Meeting of the Orthopaedic Research Society; March 16–19, 1998; New Orleans, LA. 122. Brown TD, Bottlang M, Pedersen DR, Banes AJ. Flow Field Visualization in Confirmation of a Finite Element Model of Nutrient Medium Reactive Stress in a Pressure-Differential-Driven Cell Culture Mechanostimulus System. Paper presented at: 44th Annual Meeting of the Orthopaedic Research Society; March 16–19, 1998; New Orleans, LA. 123. Brown TD, Bottlang M, Pedersen DR, Banes AJ. Flow Field Visualization in Confirmation of a Finite Element Model of Nutrient Medium Reactive Stress in a Pressure-Differential-Driven Cell Culture Mechanostimulus System. Paper presented at: College of Medicine Research Week; April 13–16, 1998; The University of Iowa, Iowa City, IA. 124. Brown TD, Neiman JC, Pedersen DR, Callaghan JJ. Third Body Wear Simulations in Total Hip Replacement. Paper presented at: Fourth Biannual Johnston Lectureship in Hip Reconstruction; October 16–17, 1998; Iowa City, Iowa. 125. Mavèiè B, Antoliè V, Brand RA, et al. Weight Bearing Area During Gait in Normal and Dysplastic Human Hips. Paper presented at: Department of Orthopaedic Surgery; March, 1998; University of Ljubljana, Ljubljana, Slovenia. 126. Nieman JC, Brown TD, Pedersen DR, Callaghan JJ. The Effects of Localized Regions of Head Roughening on Variability of UHMWPE Wear in THA. Paper presented at: 44th Annual Meeting of the Orthopaedic Research Society; March 16–19, 1998; New Orleans, LA. 127. Otto JK, Brown TD, Heiner AD, Pedersen DR, Callaghan JJ. Characterization of the Dynamic Response of a Piezoresistive Contact Stress Sensor. Paper presented at: 44th Annual Meeting of the Orthopaedic Research Society; March 16–19, 1998; New Orleans, LA. 128. Pedersen DR, Brown TD, Hillis SL, Callaghan JJ. Early Prediction of Long-Term Polyethylene Wear in Total Hip Arthroplasty. Paper presented at: 44th Annual Meeting of the Orthopaedic Research Society; March 16–19, 1998; New Orleans, LA. 129. Pedersen DR, Brown TD, Hillis SL, Callaghan JJ. The Influence of 3rd Body Debris on In Vivo Polyethylene Wear in Total Hip Arthroplasty. Paper presented at: 44th Annual Meeting of the Orthopaedic Research Society; March 16–19, 1998; New Orleans, LA. 130. Pedersen DR, Brown TD, Callaghan JJ, Hillis SL. Quantitative Estimates of Long-Term Polyethylene Wear in Total Hip Arthroplasty, Based on Early Wear Measurements Made Using 88 College of Medicine Curriculum Vitae Douglas Ray Pedersen Digital Image Analysis. Paper presented at: 65th Annual Meeting of the American Academy of Orthopaedic Surgeons; March 19–23, 1998; New Orleans, LA. 131. Pedersen DR, Brown TD, Hillis SL, Callaghan JJ. The Influence of 3rd Body Debris on In Vivo Polyethylene Wear in Total Hip Arthroplasty. Paper presented at: College of Medicine Research Week; April 13–16, 1998; The University of Iowa, Iowa City, IA. 132. Pedersen DR, Brown TD, Callaghan JJ. 3rd Body Acceleration of In-Vivo UHMWPE Wear. Paper presented at: 1998 Annual Fall Meeting of the Biomedical Engineering Society; October 10–13, 1998; Cleveland, Ohio. 133. Scifert CF, Brown TD, Pedersen DR, Heiner AD, Callaghan JJ. Direct Physical Validation of a Finite Element Model of Total Hip Dislocation. Paper presented at: 44th Annual Meeting of the Orthopaedic Research Society; March 16–19, 1998; New Orleans, LA. 134. Scifert CF, Brown TD, Pedersen DR, Callaghan JJ. The Effects of Cup Tilt and Anteversion on Dislocation Propensity in THA. Paper presented at: 44th Annual Meeting of the Orthopaedic Research Society; March 16–19, 1998; New Orleans, LA. 135. Scifert CF, Brown TD, Pedersen DR, Callaghan JJ. The Effects of Cup Tilt and Anteversion on Dislocation Propensity in THA. Paper presented at: College of Medicine Research Week; April 13–16, 1998; University of Iowa, Iowa City, IA. 136. Brown TD, Gray ML, Pedersen DR. Nutrient Medium Reactive Stresses in a Cell Culture Mechanostimulus System Delivering Homogeneous Equibiaxial Strains. Paper presented at: 45th Annual Meeting of the Orthopaedic Research Society; February 1–4, 1999; Anaheim CA. 137. Brown TD, Banes AJ, Bottlang M, Pedersen DR. Nutrient Depth and Waveform Abruptness as Determinants of Reactive Fluid Stresses in a Vacuum-Driven Cell Culture Mechanostimulus System. Paper presented at: 45th Annual Meeting of the Orthopaedic Research Society; February 1–4, 1999; Anaheim CA. 138. Brown TD, Pedersen DR, Heiner AD, Brand RA, Poggie RA, Christie MJ. Biomechanics of Femoral Head Osteonecrosis: Natural History and Head-Preserving Surgical Management. Paper presented at: 66th Annual Meeting of the American Academy of Orthopaedic Surgeons; February 4–8, 1999; Anaheim CA. 139. Brown TD, Banes AJ, Bottlang M, Pedersen DR. Nutrient Depth and Waveform Abruptness as Determinants of Reactive Fluid Stresses in a Vacuum-Driven Cell Culture Mechanostimulus System. Paper presented at: College of Medicine Research Week; April 26–29, 1999; The University of Iowa, Iowa City IA. 89 College of Medicine Curriculum Vitae Douglas Ray Pedersen 140. Callaghan JJ, Albright JC, Goetz DD, Olejniczak JP, Johnston RC, Pedersen DR. At Minimum 10 Year Follow-Up Do Cementless Acetabular Components Outperform Cemented Acetabular Components. Paper presented at: 66th Annual Meeting of the American Academy of Orthopaedic Surgeons; February 4–8, 1999; Anaheim CA. 141. Kralj-Igliè V, Igliè A, Brand RA, Pedersen DR. Contact Stress in the Hip Joint During Gait. Paper presented at: 10th SICOT Trainees Meeting; September 15–18, 1999; Portorož, Slovenia. 142. Poggie RA, Brown TD, Pedersen DR. Finite Element Analysis of Peri-Acetabular Stress of Cemented, Metal-Backed, and Porous Tantalum Backed Acetabular Components. Paper presented at: 45th Annual Meeting of the Orthopaedic Research Society; February 1–4, 1999; Anaheim CA. 143. Scifert CF, Brown TD, Pedersen DR, Callaghan JJ. The Effect of Revision Cup Outer Diameter on Impingement in Total Hip Arthroplasty. Paper presented at: 45th Annual Meeting of the Orthopaedic Research Society; February 1–4, 1999; Anaheim CA. 144. Scifert CF, Brown TD, Pedersen DR, Callaghan JJ. Collar-Liner Hooking as a Serendipitous Dislocation Check in Revision Total Hip Arthroplasty: A Finite Element "Discovery". Paper presented at: XVIIth International Society of Biomechanics Congress; August 8–13, 1999; Calgary, Canada. 145. Liu SS, Callaghan JJ, Goetz DD, Pedersen DR, Johnston RC. Durability of cemented matte finish femoral components at 14 to 15 year follow-up. Paper presented at: 67th Annual Meeting of the American Academy of Orthopaedic Surgeons; March 12–15, 2000; Orlando, Florida. 146. Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. Effects of cup anteversion/tilt orientation on dislocation propensity for 22mm head-size total hip replacements. Paper presented at: Midwest Graduate Students' Biomechanics Symposium (sponsored by the American Society of Biomechanics); April 1, 2000; Normal, Illinois. 147. Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. Effects of cup anteversion/tilt orientation on dislocation propensity for 22mm head-size total hip replacements. Paper presented at: Graduate Student Senate Forum 2000, 2000; The University of Iowa, Iowa City, IA. 148. Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. Cup Anteversion/Tilt Effects on Dislocation Propensity for Small Head Size Total Hip Replacements. Paper presented at: 24th Annual Meeting of the American Society of Biomechanics; July 19–22, 2000; University of Illinois at Chicago. 90 College of Medicine Curriculum Vitae Douglas Ray Pedersen 149. Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. Cup Anteversion/Tilt Effects on Dislocation Propensity for Small-Head-Size Total Hip Replacements. Paper presented at: 24th Annual Meeting of the American Society of Biomechanics; July 19–22, 2000; Chicago, IL. 150. Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. Comparison of Cup Anteversion and Tilt Effects on Dislocation Propensity for Small-Head-Size Total Hip Replacements. Paper presented at: International Mechanical Engineering Congress & Exposition, American Society of Mechanical Engineers, Bioengineering Division; November 9, 2000; Orlando, FL. 151. Pedersen DR, Heiner AD, Brown TD. Local Mechanics of Subchondral Plate Engagement in Structural Grafting for Osteonecrosis. Paper presented at: 46th Annual Meeting of the Orthopaedic Research Society; March 12–15, 2000; Orlando, Florida. 152. Pedersen DR, Callaghan JJ, Heiner AD, Brown TD. Chi-aquare Testing of THA Wear Rate Distribution Normality. Paper presented at: 46th Annual Meeting of the Orthopaedic Research Society; March 12–15, 2000; Orlando, Florida. 153. Pedersen DR, Callaghan JJ, Heiner AD, Brown TD. Chi-aquare Testing of THA Wear Rate Distribution Normality. Paper presented at: College of Medicine Research Days XXV; April 25, 2000; The University of Iowa, Iowa City. IA. 154. Pedersen DR, Yack HJ, Wahi R, Callaghan JJ, Brown TD. Kinematics of Maneuvers Commonly Responsible for Hip Dislocation. Paper presented at: 24th Annual Meeting of the American Society of Biomechanics; July 19–22, 2000; University of Illinois at Chicago. 155. Pedersen DR, Callaghan JJ, McAndrew C, Johnston RC. Dislocation and Wear of 22mm and 28mm Modular Heads in Uncemented Acetabular Cups. Paper presented at: Hip Society Summer Meeting; September 15–16, 2000; Boston, MA. 156. Pedersen DR, Callaghan JJ, McAndrew C, Johnston RC. Total Hip Arthroplasty Wear Rate Distributions are Non-Gaussian. Paper presented at: Hip Society Summer Meeting; September 15–16, 2000; Boston, MA. 157. Wilken J, Pedersen DR, Yack HJ, Callaghan JJ. 3 Dimensional Kinematics of Movements Associated with Hip Dislocation Following Hip Replacement Surgery. Paper presented at: 2nd Annual Graduate Student Senate Research Forum; April 12, 2000; University of Iowa, Iowa City, IA. 158. Wilken J, Yack HJ, Pedersen DR, Brown TD, Callaghan JJ. 3 Dimensional Kinematics of Movements Associated with Dislocation Following Hip Replacement Surgery. Paper presented 91 College of Medicine Curriculum Vitae Douglas Ray Pedersen at: College of Medicine Research Week 2000; April 25, 2000; The University of Iowa, Iowa City, IA. 159. Brown TD, Maxian TA, Stewart KJ, Pedersen DR. Clinical Biomechanics of Wear in THA. Paper presented at: The 1st Global Communication of the Art & Science of Joint Replacement Surgery; October 31–November 2, 2001; Seoul, Korea. 160. Brown TD, Nadzadi ME, Scifert CF, Pedersen DR, Callaghan JJ. Biomechanics of THA Dislocation. Paper presented at: The 1st Global Communication of the Art & Science of Joint Replacement Surgery; October 31–November 2, 2001; Seoul, Korea. 161. Callaghan JJ, Goetz DD, Sullivan PM, Pedersen DR, Johnston RC. Is a Polished Surface Finish Optimal for a Collared Cemented Prosthesis? Paper presented at: 68th Annual Meeting of the American Academy of Orthopaedic Surgeons; February 28–March 4, 2001; San Francisco, CA. 162. Callaghan JJ, Goetz DD, Sullivan PM, Pedersen DR, Johnston RC. Cementless Acetabular Fixation in Revision Hip Surgery: The Gold Standard for the New Millennium. Paper presented at: 68th Annual Meeting of the American Academy of Orthopaedic Surgeons; February 28– March 4, 2001; San Francisco, CA. 163. Grosland NM, Pedersen DR, Brown TD. Automating Voxel-Based Contact Finite Element Models. Paper presented at: 9th Annual Symposium of Computational Methods in Orthopaedic Biomechanics; February 23, 2001; San Francisco, CA. 164. Grosland NM, Pedersen DR, Brown TD. An Anatomical Voxel-Bsed FE Contact Analysis Formulation. Paper presented at: 25th Annual Meeting of the American Society of Biomechanics; August 9–12, 2001; San Diego, CA. 165. Johnston TL, Callaghan JJ, Pedersen DR, McAndrew CM. Are 22 mm Heads the Solution to Polyethylene Wear in Cementless Acetabular Components? Paper presented at: 19th Annual Meeting of the Mid-America Orthopaedic Association; April 18–22, 2001; Amelia Island Plantation, FL. 166. Liu SS, Callaghan JJ, Goetz DD, Sullivan PM, Pedersen DR. Cemented Metal Backed Acetabular Components at Long-term Follow-up: What Lessons can be Applied to Cementless Fixation? Paper presented at: 19th Annual Meeting of the Mid-America Orthopaedic Association; April 18–22, 2001; Amelia Island Plantation, FL. 167. Liu SS, Callaghan JJ, Goetz DD, Sullivan PM, Pedersen DR, Johnston RC. Cemented Metal Backed Acetabular Components at Long Term Follow-Up: What Lessons can be Applied to 92 College of Medicine Curriculum Vitae Douglas Ray Pedersen Cementless Fixation? Paper presented at: 11th Annual Meeting of the American Association of Hip and Knee Surgeons; November 9–11, 2001; Dallas, TX. 168. Nadzadi ME, Pedersen DR, Yack HJ, Callaghan JJ, Brown TD. Incorporation of In-Vivo Human Kinetic Data Into a Finite Element Model of THA Dislocation. Paper presented at: 9th Annual Symposium of Computational Methods in Orthopaedic Biomechanics; February 23, 2001; San Francisco, CA. 169. Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. Cup Abduction/Anteversion Effects on Dislocation Propensity for Small-Head-Size THR. Paper presented at: 47th Annual Meeting of the Orthopaedic Research Society; February 24–28, 2001; San Francisco, CA. 170. Nadzadi ME, Pedersen DR, Callaghan JJ, Brown TD. A Mode of THA Dislocation Occurring Without Impingement/Lever-Out. Paper presented at: 47th Annual Meeting of the Orthopaedic Research Society; February 24–28, 2001; San Francisco, CA. 171. Nadzadi ME, Pedersen DR, Yack HJ, Brown TD. Maneuvers Commonly Responsible for Hip Dislocation Define a Cup Placement 'Safe Zone' in Total Hip Arthroplasty. Paper presented at: VA Research Day; April 19, 2001; The University of Iowa, Iowa City, IA. 172. Nadzadi ME, Pedersen DR, Yack HJ, Callaghan JJ, Brown TD. Development of a Living-Subject Motion Database to Examine Both Posterior and Anterior Dislocation in THA. Paper presented at: Proceedings of the 2001 Bioengineering Conference, 2001. 173. Nadzadi ME, Pedersen DR, Yack HJ, Callaghan JJ, Brown TD. A Database of Living-Subject Motion to Examine Both Posterior and Anterior Dislocation of Total Hip Replacements. Paper presented at: 25th Annual Meeting of the American Society of Biomechanics; August 9–12, 2001; San Diego, CA. 174. Pedersen DR, Yack HJ, Brown TD, Callaghan JJ. Kinematics of Maneuvers Commonly Responsible for Total Hip Dislocation. Paper presented at: 4th Combined Meeting of the Orthopaedic Research Societies of the U.S.A, Canada, Europe and Japan; June 1–3, 2001; Rhodes, Greece. 175. Templeton JE, Callaghan JJ, Goetz DD, Sullivan PM, Pedersen DR. Cementless Acetabular Fixation in Revision Hip Surgery: The Gold Standard for the New Millennium. Paper presented at: 19th Annual Meeting of the Mid-America Orthopaedic Association; April 18–22, 2001; Amelia Island Plantation, FL. 176. Templeton JE, Callaghan JJ, Goetz DD, Sullivan PM, Pedersen DR, Johnston RC. Cementless Acetabular Fixation in Revision Hip Surgery: Results at Minimum 10 Year Follow Up. Paper 93 College of Medicine Curriculum Vitae Douglas Ray Pedersen presented at: 11th Annual Meeting of the American Association of Hip and Knee Surgeons; November 9–11, 2001; Dallas, TX. 177. Callaghan JJ, Gaffey JL, Pedersen DR, Goetz DD, Johnston RC. Cementless Acetabular Fixation at 15 Years: Comparison to the Gold Standard Charnley. Paper presented at: Joint Meeting of the American and Canadian Orthopaedic Associations; June 1–4, 2002; Victoria, British Columbia. 178. Callaghan JJ, Keener JD, Pedersen DR, Sullivan PM, Goetz DD, Johnston RC. Charnley Total Hip Arthroplasty in Patients Under Age 50: Functional and Radiographic Results at Minimum 25 Year Follow-up. Paper presented at: Joint Meeting of the American and Canadian Orthopaedic Associations; June 1–4, 2002; Victoria, British Columbia. 179. Callaghan JJ, Pedersen DR. Long Term Follow-up Studies of Wear. Paper presented at: International Conference Engineers & Surgeons - Joined at the Hip; June 13–15, 2002; Savoy Place, London, UK. 180. Dai Y, Pedersen DR, Grosland NM, Brown TD. Interactive Three-Dimensional Computational Reconstruction of Intra-Articular Fractures. Paper presented at: The 10th Annual Symposium on Computational Methods in Orthopaedic Biomechanics; February 9, 2002; Dallas, TX. 181. Gaffey JL, Callaghan JJ, Pedersen DR, Goetz DD, Johnston RC. Cementless Acetabular Fixation at 15 Years: Comparison to the Gold Standard Charnley. Paper presented at: The 2002 Annual Meeting of the American Academy of Orthopaedic Surgeons; February 13–17, 2002; Dallas, TX. 182. Lamb CA, Pedersen DR, Dolan LA, Morcuende JA, Weinstein SL. Radiographic Measurements in DDH: Reliability and Validity of a Digitizing Program. Paper presented at: 48th Annual Meeting of the Orthopaedic Research Society; February 10–13, 2002; Dallas, TX. 183. Lamb CA, Pedersen DR, Dolan LA, Morcuende JA, Weinstein SL. Radiographic Measurements in DDH: Reliability and Validity of a Digitizing Program. Paper presented at: The 2002 Annual Meeting of the Pediatric Orthopaedic Society of North America; May 1–5, 2002; Salt Lake City, UT. 184. Lamb CA, Pedersen DR, Dolan LA, Morcuende JA, Weinstein SL. Radiographic Measurements in DDH: Reliability and Validity of a Digitizing Program. Paper presented at: College of Medicine Research Week 2002; April, 2002; The University of Iowa, Iowa City, IA. 185. Pedersen DR, Callaghan JJ, Johnston TL, Fetzer GB, Johnston RC. Are 22 Millimeter Heads the Solution to Polyethylene Wear in Cenentless Acetabular Components? Paper presented at: 94 College of Medicine Curriculum Vitae Douglas Ray Pedersen The 2002 Annual Meeting of the American Academy of Orthopaedic Surgeons; February 13–17, 2002; Dallas, TX. 186. Pedersen DR, Ralston HM, Lamb CA, Weinstein SL. Bone morphology changes in DDH hips. Paper presented at: IV World Congress of Biomechanics; August 4–9, 2002; Calgary. 187. Stewart KJ, Pedersen DRB, R. A.; Brown, T. D. Hyperelastic Representation of Hip Joint Capsule: A Finite Element Validation. Paper presented at: IV World Congress of Biomechanics; August 4–9, 2002; Calgary. 188. Callaghan JJ, Gaffey JL, Goetz DD, Sullivan PM, Pedersen DR, Johnston, RC. Cementless acetabular fixation at 15 years with the HG-I component: Comparison to the gold standard Charnley. The American Association of Hip & Knee Surgeons 12 th Annual Fall Meeting, November 1–3, 2002, Dallas, Texas. 189. Callaghan JJ, Pedersen DR, Johnston RC, Brown TD. Clinical Biomechanics of Wear in Total Hip Arthroplasty. Paper presented at: 48th Annual Meeting of the Orthopaedic Research Society; Feb., 2003; New Orleans, LA. 190. Gaffey JL, Callaghan JJ, Pedersen DR, Goetz DD, Sullivan PM, Johnston RC. Cementless Acetabular Fixation at 15 Years: Comparison to the Same Surgeon's Cemented Results. Paper presented at: MidAmerica Orthopaedic Association; April, 2003; Hilton Head. 191. Stewart KJ, Pedersen DR, Brand RA, Brown TD. Hyperelastic Representation of Hip Joint Capsule: A Finite Element Validation. Paper presented at: 48 th Annual Meeting of the Orthopaedic Research Society; February, 2003; New Orleans. 192. Firestone DE, Callaghan JJ, Pedersen DR, Goetz DD, Vittetoe DD. Ten-year Follow-up of Iowa Polished Surface Femoral Prostheses. 35th Annual Student Medical Research Day, September 5, 2003, University of Iowa, Iowa City, Iowa. Poster Presentation. 193. Buckwalter AE, Callaghan JJ, Pedersen DR, Goetz DD, Vittetoe DA. A Minimum Twenty-fiveyear Follow-up Study of Cemented Total Hip Arthroplasty Using “Contemporary” Cementing Techniques. 35th Annual Student Medical Research Day, September 5, 2003, University of Iowa, Iowa City, Iowa. Podium Presentation. 194. Ralston HM, Pedersen DR. Bone Morphology Changes in DDH Hips Throughout Adulthood. Poster Session 1: Poster #4 at the 27th Annual Meeting of the American Society of Biomechanics, September, 2003; Toledo, OH. 95 College of Medicine Curriculum Vitae Douglas Ray Pedersen 195. Lundberg HJ, Stewart KJ, Pedersen DR, Brown TD. Computational Investigations of Third Body Acceleration of THA wear. University of Leeds School of Mechanical Engineering and School of Medicine, January 14, 2004, Leeds, United Kingdom. Podium Presentation. 196. Bouchard SM, Stewart KJ, Pedersen DR, Brown TD. Parameters Influencing Dislocation Resistance of Constrained Acetabular Cups. 12th Annual Symposium on Computational Methods in Orthopaedic Biomechanics, March 6, 2004, Parnassus Campus, University of California, San Francisco, California. 197. Lundberg HJ, Stewart KJ, Pedersen DR, Brown TD. Problematic Sites of Third Bbody Embedment in Polyethylene for Wear Acceleration in Ttotal Hip Arthroplasty. 12th Annual Symposium on Computational Methods in Orthopaedic Biomechanics, March 6, 2004, Parnassus Campus, University of California, San Francisco, California. (Oral Presentation. Session title: Bone and prosthesis modeling) 198. Stewart KJ, Pedersen DR, Brown TD. Development of a Total Hip Dislocation Finite Element Model with Capsule Representation. 12th Annual Symposium on Computational Methods in Orthopaedic Biomechanics, March 6, 2004, Parnassus Campus, University of California, San Francisco, California. (Accepted for Oral Presentation. Session title: Soft tissue modeling) 199. Bouchard SM, Stewart KJ, Pedersen DR, Brown TD. Parameters Influencing Performance of Constrained Acetabular Cups. 50th Annual Meeting of the Orthopaedic Research Society, March 7–10, 2004, San Francisco, California. 200. Pedersen DR, Callaghan JJ, Brown TD. Activity-dependence of the Safe Zzone for THA Performance. 50th Annual Meeting of the Orthopaedic Research Society, March 7–10, 2004, San Francisco, California. 201. Pedersen DR. Moderator Session 26: Polyethylene I. 50th Annual Meeting of the Orthopaedic Research Society, March 8, 2004, San Francisco, California. 202. Callaghan JJ, Templeton JE, Goetz DD, Sullivan PM, Pedersen DR, Johnston RC. A Benchmark for Future Ttotal Hip Arthroplasty: Results of Charnley THR at Minimum 30-year Follow Up. 71st Annual Meeting of the American Academy of Orthopaedic Surgeons, March 10, 2004, San Francisco, California. 203. Bouchard SM, Stewart KJ, Pedersen DR, Callaghan JJ, Brown TD. Parameters Influencing Performance of Constrained Acetabular Cups. Roy J. and Lucille A. Carver College of Medicine/College of Public Health/VA Medical Center Research Week 2004, March 30– April 1, 2004, Iowa City, Iowa. Poster Presentation. 96 College of Medicine Curriculum Vitae Douglas Ray Pedersen 204. Leinen JA, Schroeder BT, Pedersen DR, Dolan LA, Weinstein SL, Morcuende JA. Long-term Outcome After Closed Reduction for Developmental Dysplasia of the Hip. Roy J. and Lucille A. Carver College of Medicine/College of Public Health/VA Medical Center Research Week 2004, March 30–April 1, 2004, Iowa City, Iowa. Poster Presentation. 205. Pedersen DR, Callaghan JJ, Brown TD. Activity-dependence of the Safe Zone for THA Dislocation Performance. Roy J. and Lucille A. Carver College of Medicine/College of Public Health/VA Medical Center Research Week 2004, March 30– April 1, 2004, Iowa City, IA. 206. Firestone DE, Liu SS, Callaghan JJ, Gaffey JL, Pedersen DR, Goetz DD, Vittetoe DD, Sullivan PM, Johnston RC. Comparison of Three Cemented Femoral Components with Identical Geometry But Different Surface Finishes at Minimum Ten-year Follow-up. (Edward D. Henerson Physician in Training Award). Mid-American Orthopaedic Association 22nd Annual Meeting, April 14–18, 2004, La Quinta, Palm Springs, California. Podium Presentation. 207. Buckwalter AE, Callaghan JJ, Goetz DD, Pedersen DR, Johnston RC. A Minimum Twenty-fiveyear Follow-up Study of Cemented Total Hip Arthroplasty Using “Contemporary” Cementing Techniques. Mid-American Orthopaedic Association 22nd Annual Meeting, April 14–18, 2004, La Quinta, Palm Springs, California. 208. Bouchard SM, Stewart KJ, Pedersen DR, Callaghan JJ, Brown TD. Parameters Influencing Performance of Constrained Acetabular Cups. University of Iowa College of Engineering’s Research Open House, April 29, 2004, Iowa City, Iowa. Poster Presentation. 209. Dahl KA, Callaghan JJ, Pedersen DR, Liu SS, Goetz DD, Sullivan PM, Johnston RC. The Effect of Cable Debris on Acetabular Construct Durability in Cemented Ttotal Hip Arthroplasty at Minimum Twenty-year Follow-up. Mid-American Orthopaedic Association 22nd Annual Meeting, April 14–18, 2004, La Quinta, Palm Springs, California. Podium Presentation and Poster. 210. Tochigi Y, Jin-Soo S, Amendola A, Pedersen DR, Saltzman CL. Reproducible Radiographic Technique for Characterizing Antero-Posterior Tibio-Talar Alignment. American Orthopaedic Foot and Ankle Society 20th Annual Summer Meeting, Seattle, Washington, July 29–31, 2004. 211. Pedersen DR, TD Brown. Nonlinear Computational Biomechanics of the Hhip. Fourth Annual Bioengineering Research Partnership Grantee Meeting, Bethesda, Maryland, July 28–30, 2004. 212. Pedersen DR. Chronic Stress Tolerance of Human Articular Cartilage: Developmental Dysplasia of the Hip as a Model of Long Term Overloading. The Whitaker Foundation Biomedical Engineering Research Conference, La Jolla, California, August 12–15, 2004. 97 College of Medicine Curriculum Vitae Douglas Ray Pedersen 213. Baer, T.E., Pedersen, D.R., Rudert, J.M., Kallemeyn, N.A., Grosland, N.M., Brown, T.D.: A Novel Device For Calibrating Sheet Array Pressure Sensors and For Monitoring Their Performance. The 28th Annual Meeting of the American Society of Biomechanics, September 8– 11, 2004, Portland, Oregon. Poster #239. 214. Bouchard, S.M., Stewart, K.J., Pedersen, D.R., Callaghan, J.J., Brown, T.D.: A Parametric Finite Element Study of Constrained Acetabular Liners. The 28 th Annual Meeting of the American Society of Biomechanics, September 8–11, 2004, Portland, Oregon. Poster #174. 215. Lundberg, H.J., Stewart, K.J., Pedersen, D.R., Brown, T.D.: Problematic Sites of Third Body Embedment in Polyethylene For Wear Acceleration in Total Hip Arthroplasty. The 28 th Annual Meeting of the American Society of Biomechanics, September 8–11, 2004, Portland, Oregon. Poster #180. 216. Stewart, K.J., Pedersen, D.R., Callaghan, J.J., Brown, T.D.: Capsule Representation in a Total Hip Dislocation Finite Element Model. The 28th Annual Meeting of the American Society of Biomechanics, September 8–11, 2004, Portland, Oregon. Poster #129. 217. Pedersen, DR; Firestone, DE; Liu, SS; Callaghan, JJ; Goetz, DD; Johnston, RC. Durability of Identical Cemented Femoral Component Geometries with Three Different Surface Finishes Compared at Minimum 10-Year Follow-Up. 4th Chinese Speaking Orthopaedic Society Scientific Congress, September 22–26, 2004, Beijing, China. 218. Pedersen, D.R., Callaghan, J.J., Brown, T.D.: Activity-Dependence of the “Safe Zone” for Impingement Versus Dislocation Avoidance. Zhong-Yuan University, College of Engineering, September 30, 2004, Zhong-Li City, Taiwan. 219. Pedersen, D.R., Callaghan, J.J., Brown, T.D.: Activity-Dependence of the “Safe Zone” for Impingement versus Dislocation Avoidance. Joint Prosthesis Technology Research Center, Orthopaedic Biomechanics Laboratory Institute of Biomedical Engineering, National Yang Ming University, October 1, 2004, Taipei, Taiwan. 220. McKinley, T.O., Rudert, M.J., Koos, D.K., Pedersen, D.R., Baer, T.E., Tochigi, Y., Marsh, J.L., Brown, T.D.: Real-Time Transient and Whole-Stance Phase Contact Stress and Contact Stress Gradient Changes in an Ankle Incongruity Model. OTA 20 th Annual Meeting, October 8, 2004, Ft. Lauderdale/Hollywood, Florida. 221. Baer, T.E., Pedersen, D.R., Rudert, J.M., Kallemeyn, N.A., Grosland, N.M., Brown, T.D.: Calibrating and Monitoring Sheet Array Pressure Sensors for Intra-Articular Loading Measurement. 5th Combined Meeting of the Orthopaedic Research Societies of the U.S.A., 98 College of Medicine Curriculum Vitae Douglas Ray Pedersen Canada, Japan and Europe, October 10–13, 2004, Banff, Alberta, Canada. Paper Presentation #115. 222. Bouchard, S.M., Stewart, K.J., Pedersen, D.R., Callaghan, J.J., Brown, T.D.: Factors Influencing Mechanics of Constrained Acetabular Cups. 5th Combined Meeting of the Orthopaedic Research Societies of the U.S.A., Canada, Japan and Europe, October 10–13, 2004, Banff, Alberta, Canada. Poster #251. 223. Lundberg, H.J., Stewart, K.J., Pedersen, D.R., Brown, T.D.: Problematic Sites of Third Body Embedment in Polyethylene For Wear Acceleration in Total Hip Arthroplasty. 5th Combined Meeting of the Orthopaedic Research Societies of the U.S.A., Canada, Japan and Europe, October 10–13, 2004, Banff, Alberta, Canada. Poster # 215. 224. McKinley, T.O., Rudert, M.J., Koos, D.K., Pedersen, D.R., Baer, T.E., Tochigi, Y., Marsh, J.L., Brown, T.D.: Whole-Cycle Contact Stress, Contact Stress Directional Gradient, and Loading Rate Changes in an Ankle Incongruity Model. 5th Combined Meeting of the Orthopaedic Research Societies of the U.S.A., Canada, Japan and Europe, October 10–13, 2004, Banff, Alberta, Canada. Paper Presentation # 064. 225. McKinley, T.O., Rudert, M.J., Koos, D.K., Pedersen, D.R., Baer, T.E., Tochigi, Y., Marsh, J.L., Brown, T.D.: Time-Variant Contact Stress, Contact Stress Directional Gradient, and Loading Rate Changes in an Ankle Incongruity Model. 5th Combined Meeting of the Orthopaedic Research Societies of the U.S.A., Canada, Japan and Europe, October 10–13, 2004, Banff, Alberta, Canada. Poster # 276. 226. Stewart, K.J., Pedersen, D.R., Callaghan, J.J., Brown, T.D.: Capsule Representation in a Total Hip Dislocation Finite Element Model. 5th Combined Meeting of the Orthopaedic Research Societies of the U.S.A., Canada, Japan and Europe, October 10–13, 2004, Banff, Alberta, Canada. Paper Presentation #107. 227. McKinley, T.O., Rudert, M.J., Koos, D.K., Pedersen, D.R., Baer, T.E., Tochigi, Y., Marsh, J.L., Brown, T.D.: Time-Variant Contact Stress, Contact Stress Directional Gradient, and Loading Rate Changes in an Ankle Incongruity Model. 9th International Society for Fracture Repair, November 2–11, 2004, Bologna, Italy. Podium Presentation, Poster #47. 228. Lundberg, H.J., Stewart, K.J., Pedersen, D.R., Brown, T.D.: Sites of Kinetically Critical Femoral Head Roughening For Third Body Acceleration of Total Hip Implant Wear. 2004 International Mechanical Engineering Congress, November 18, 2004, Anaheim, California. 99 College of Medicine Curriculum Vitae Douglas Ray Pedersen 229. Pedersen, D.R., Shivanna, K.H., Russell, M.E., Grosland, N.M.: Cyclic Cartilage Stress Elevations in Dysplastic Hips. 9th World Congress of the Osteoarthritis Research Society International, December 2–5, 2004, Chicago, Illinois, Poster 117. 230. Vos, N., Grosland, N.M., Pedersen, D.R., Martin J., Heiner, A.D., Brown, T.D.: Heterogeneity of Shear Stress Modulation in Triaxial Compression of Cartilage. 9 th World Congress of the Osteoarthritis Research Society International, December 2–5, 2004, Chicago, Illinois, Poster 254. 231. Baer, T.E., Pedersen, D.R., Rudert, M.J., Kallemeyn, N.A., Grosland, N.M., Brown, T.D.: Traveling-Wave Calibration of Intra-Articular Sheet Array Pressure Sensors. 9th World Congress of the Osteoarthritis Research Society International, December 2–5, 2004, Chicago, Illinois, Poster 306. 232. Baer, T.E., Pedersen, D.R., Rudert, M.J., Kallemeyn, N.A., Grosland, N.M., Brown, T.D.: Traveling-Wave Calibration of Sheet Array Sensors for Intra-Articular Pressure Measurements. 51st Annual Meeting of the Orthopaedic Research Society, February 20–23, 2005, Washington DC. Poster Presentation #1699. 233. Lundberg, H.J., Pedersen, D.R., Muste, M.V., Baer, T.E., Brown, T.D.: Quantifying Fluid Ingress to the Joint Space During THA Subluxation. University of Iowa College of Engineering 3rd Annual Research Open House, April 7, 2005, Iowa City, Iowa. 234. Shivanna, K.H., Pedersen, D.R., Grosland, N.M.: Finite Element Mesh Generation of Synovial Joints. University of Iowa College of Engineering 3 rd Annual Research Open House, April 7, 2005, Iowa City, Iowa. 235. Goetz, J.E., Kurriger, G., Baer,T.E., Chung, Y.Y., Stoermer, E., Pedersen, D.R., Martin, J.A., Conzemius, M.G., Robinson, D., Brown, T.D.: Three-Dimensional Mappings of Histology Data in the Osteonecrotic Emu Femoral Head. College of Medicine/College of Public Health/VA Medical Center Research Week, May 18–20, 2005, Iowa City, Iowa. 236. Baer, T.E., Pedersen, D.R., Rudert, M.J., Kallemeyn, N.A., Grosland, N.M., Brown,T/D.: Calibration and Monitoring of Piezoresistive Contact Stress Arrays Using a Traveling Pressure Wave Protocol. XXth Congress of the International Society of Biomechanics and 29th Annual Meeting of the American Society of Biomechanics, July 31–August 5, 2005, Cleveland, Ohio. Instrumentation: Podium Presentation. 237. Goetz, J.E., Baer, T.E., Kurriger, G., Pedersen, D.R., Brown,T.D.: Three Dimensional Multiscale Reconstruction of Emu Femoral Head Osteonecrosis: From Cell to Organ Level. XXth Congress 100 College of Medicine Curriculum Vitae Douglas Ray Pedersen of the International Society of Biomechanics and 29th Annual Meeting of the American Society of Biomechanics, July 31–August 5, 2005, Cleveland, Ohio. Bone 1: Podium Presentation. 238. Goldsworthy, J.K., Anderson, D.D., Shivanna, K.H., Grosland, N.M., Pedersen, D.R., Brown, T.D.: Chronic Stress Exposure Following Intra-Articular Ankle Fractures. XXth Congress of the International Society of Biomechanics and 29th Annual Meeting of the American Society of Biomechanics, July 31–August 5, 2005, Cleveland, Ohio. Ankle: Podium Presentation. 239. Kallemeyn, N.A., Grosland, N.M., Pedersen, D.R., Martin, J.A., Heiner, A.D., Brown,T.D.: A Finite Element Analysis of Cartilage in Cyclic Triaxial Compression. XXth Congress of the International Society of Biomechanics and 29th Annual Meeting of the American Society of Biomechanics, July 31–August 5, 2005, Cleveland, Ohio. Osteoarthritis and Cartilage: Poster Presentation #65. 240. Lundberg, H.J., Pedersen, D.R., Muste, M.V., Baer, T.E., Brown, T.D.: Quantifying Fluid Ingress to the Joint Space During Total Hip Implant Subluxation. XXth Congress of the International Society of Biomechanics and 29th Annual Meeting of the American Society of Biomechanics, July 31–August 5, 2005, Cleveland, Ohio. Joint Mechanics: Poster Presentation #409. 241. Leinen JA, Brown TD, Callaghan JJ, Liu SS, Pedersen DR. Wear of cross-linked polyethylene in total hip arthroplasty. Medical Student Research Day, University of Iowa College of Medicine, September 2005, Iowa City, Iowa. 242. Metz CM, Callaghan JJ, Warth LC, Liu SS, Pedersen DR. Minimum five to ten year follow-up of cementless total hip arthroplasty in patients age fifty and under. Medical Student Research Day, University of Iowa College of Medicine, September 2005, Iowa City, Iowa 243. Yehyawi T, Callaghan JJ, O’Rourke MR, Pedersen DR, Liu SS. Implication of sagittal femoral bowing on knee arthritis and total knee replacement. Medical Student Research Day, University of Iowa College of Medicine, September 2005, Iowa City, Iowa. 244. Callaghan, J.J., Teusink, M.J., Liu, S.S., Sullivan, J., Goetz, D.D., Vittetoe, D.A., Pedersen, D.R. Johnston, R.C.: Cementless Acetabular Fixation in Patients Under 50 years of Age: A 10–18 Year Follow-Up Study. Hip Society Summer Meeting, September 22–24, 2005, Pittsburgh, Pennsylvania. Podium Presentation Session VIII: Acetabular Reconstruction. 245. Pedersen, D.R., Stewart, K.J., Brown, T.D., Callaghan, J.J.: Capsule Defect Influences on THA Dislocation Propensity: A Finite Element Exploration. Hip Society Summer Meeting, September 22–24, 2005, Pittsburgh, Pennsylvania. Podium Presentation SessionIX: Acetabular Alignment/Dislocation. 101 College of Medicine Curriculum Vitae Douglas Ray Pedersen 246. Pedersen, D.R., Stewart, K.J., Brown,T.D., Callaghan, J.J.: Capsule Defect Influences on Total Hip Dislocation Propensity—A Finite Element Exploration. BMES 2005 Annual Fall Meeting: The Changing Face of Biomedical Engineering: Celebration of the Whitaker Foundation, September 28–October 1, 2005, Baltimore, Maryland. Podium Presentation. 247. Goldsworthy, J.K., Anderson, D.D., Shivanna, K., Grosland, N.M., Pedersen, D.R., Thomas, T.P., Tochigi, Y., Marsh, J.L., Brown, T.D.: Patient-Specific Computer Modeling of Degeneration Propensity Due to Aberrant Contact Stress Exposure Following Intra-Articular Fracture of the Ankle. 10th World Congress on Osteoarthritis, December 8–11, 2005, Boston, Massachusetts. Poster Presentation #159. 248. Pedersen, D.R., Martin, J.A.: Chondrocyte Fiducials For Analysis of Cartilage Strain Heterogeneity During Dynamic Cyclic Loading. 6th Symposium of ICRS 2006, January 8–11, 2006, San Diego, California. Poster Presentation #P2-4. 249. Conzemius MG, Robinson DA, Theis LI, Waxman A, Evans R, Derrick T, Goetz JE, Pedersen DR, Brown TD. Characterization of ground reaction forces in the normal emu. 2 nd World Veterinary Orthopaedic Congress, Keystone, Colorado, February 25–March 4, 2006. Poster Presentation. 250. Brown, T.D., Derrick, T.R., Pedersen, D.R., Goetz, J.E., Robinson, D.A., Conzemius, M.G.: Stance-Phase Kinematics and Kinetics of Emu Level Walking. 52nd Annual Meeting of the Orthopaedic Research Society, March 19–22, 2006, Chicago, Illinois. Poster Presentation #420. 251. Goldsworthy, J.K., Anderson, D.D., Shivanna, K., Grosland, N.M., Pedersen, D.R., Thomas, T.P., Tochigi, Y., Marsh, J.L., Brown, T.D.: Patient-Specific Modeling of Degeneration Propensity Following Intra-Articular Fracture of the Ankle. 52nd Annual Meeting of the Orthopaedic Research Society, March 19–22, 2006, Chicago, Illinois. Session 30: Foot and Ankle. Paper Presentation #205. 252. Goldsworthy, J.K., Anderson, D.D., Pedersen, D.R., Tochigi, Y., Brown, T.D.: Achieving Physiologic Rotation in Patient-Specific Contact Stress Analysis of the Ankle. 52nd Annual Meeting of the Orthopaedic Research Society, March 19–22, 2006, Chicago, Illinois. Poster Presentation #1893. 253. Kallemeyn, N.A., Grosland, N.M., Pedersen, D.R., Martin, J.A., Heiner, A.D., Brown, T.D.: A Poroelastic Finite Element Analysis of Cartilage in Dynamic Triaxial Compression. 52nd Annual Meeting of the Orthopaedic Research Society, March 19–22, 2006, Chicago, Illinois. Poster Presentation #1524. 102 College of Medicine Curriculum Vitae Douglas Ray Pedersen 254. Lundberg, H.J., Pedersen, D.R., Brown, T.D.: Effects of Femoral Head Size on Fluid Ingress During Impingement/Subluxation. 52nd Annual Meeting of the Orthopaedic Research Society, March 19–22, 2006, Chicago, Illinois. Session 23: Hip. Paper Presentation #219. 255. Pedersen, D.R., Chung, Y.Y., Callaghan, J.J., Brown, T.D.: Wear Direction Versus Wear Rate in 3rd Body-Challenged THA Cohorts. 52nd Annual Meeting of the Orthopaedic Research Society, March 19–22, 2006, Chicago, Illinois. Poster Presentation #641. 256. Pedersen, D.R., Russell, M.E., Shivanna, K.H., Grosland, N.M.: Cartilage Contact Pressure Elevations in Dysplastic Hips. 52nd Annual Meeting of the Orthopaedic Research Society, March 19–22, 2006, Chicago, Illinois. Paper Presentation #82. 257. Shivanna, K.H., Grosland, N.M., Russell, M.E., Brown, T.D., Pedersen, D.R.: Cartilage Contact Pressure Elevations in Dysplastic Hhips After Ganz Osteotomy. 52nd Annual Meeting of the Orthopaedic Research Society, March 19–22, 2006, Chicago, Illinois. Poster Presentation #1513. 258. Stewart ,K.J., Pedersen, D.R., Callaghan, J.J., Brown, T.D.: Capsular Atrophy and Detachment Influences on THA Dislocation Propensity: A finite Element Model Exploration. 52nd Annual Meeting of the Orthopaedic Research Society, March 19–22, 2006, Chicago, Illinois. Poster Presentation #452. 259. Dahl, K.A., Pedersen, D.R., Callaghan, J.J., Goetz, D.D., Vittetoe, D.A., Sullivan, P.M., YoungYool, C., Johnston, R.C. The Effect of Cable Debris on Acetabular Construct Durability in Cemented THA at 19–20 Year Follow-Up. 73rd Annual Meeting of the American Academy of Orthopaedic Surgeons, March 22–26, 2006, Chicago, Illinois. Podium Presentation. 260. Goldsworthy, J.K., Anderson, D.D., Rudert, M.J., Tochigi, Y., Pedersen, D.R., Brown, T.D.: Validation of a Patient-Specific Finite Eelement Model of the Ankle. 14th Annual Symposium on Computational Methods in Orthopaedic Biomechanics, March 18, 2006, Chicago, Illinois. 261. Goreham-Voss CM, Rudert MJ, Brown TD. Poroelestic finite element analysis of a step-off articular incongruity. 14th Annual Symposium on Computational Methods in Orthopaedic Biomechanics, March 18, 2006, Chicago, Illinois. Podium Presentation. 262. Leinen JA, Callaghan JJ, Altenburg JA, Dahl KA, Pedersen DR, Liu SS, Goetz DD, Vittetoe DA, Sullivan PM, Chung YY, Johnston RC. The effect of cable debris on acetabular construct durability in cemented total hip arthroplasty at 19 to 20 year follow-up. American Academy of Orthopaedic Surgeons (AAOS), March 22–26, 2006, Chicago Illinois. 103 College of Medicine Curriculum Vitae Douglas Ray Pedersen 263. Goetz JE, Baer TE, Kurriger GL, Pedersen DR, Robinson DA, Conzemius MG, Brown, TD. Three-dimensional histologic evaluation of osteonecrotic lesion volume in the emu femoral head. 2006 Midwest Graduate Student Biomechanics Symposium (MWGSBS), March 31–April 1, 2006, Milwaukee, Wisconsin. Podium Presentation, Session 5: Orthopaedics. 264. Goldsworthy JK, Anderson DD, Rudert MJ, Tochigi Y, Pedersen DR, Brown TD. Validation of a patient-specific finite element model of the ankle. 2006 Midwest Graduate Student Biomechanics Symposium (MWGSBS), March 31–April 1, 2006, Milwaukee, Wisconsin. Podium Presentation, Session 2: Locomotion 1. Outstanding Research Award Winner. 265. Lundberg HJ, Pedersen DR, Brown TD. Effects of femoral head size on fluid ingress during THA impingement/subluxation. 2006 Midwest Graduate Student Biomechanics Symposium (MWGSBS), March 31–April 1, 2006, Milwaukee, Wisconsin. Poster Presentation. 266. Lundberg HJ, Pedersen DR, Brown TD. Effects of femoral head size on fluid ingress during THA impingement/subluxation. The University of Iowa College of Engineering 4 th Annual College of Engineering Research Open House, April 20, 2006, Iowa City, Iowa. 267. Teusink MJ, Callaghan JJ, Liu SS, Sullivan J, Goetz DD, Vittetoe DA, Pedersen DR, Johnston RC. Cementless acetabular fixation in patients 50 Years of age and under: A 10–18 year followup study. Mid American Orthopaedic Association (MAOA) Annual Meeting, April 19–23, 2006, San Antonio, Texas. 268. Leinen JA, Callaghan JJ, Liu SS, Klaassen AL, Pedersen DR. Three to five year radiographic follow-up of moderately cross-linked marathon polyethylene in total hip replacement. MidAmerican Orthopaedic Association (MAOA) Annual Meeting, April 19–23, 2006, San Antonio, Texas. 269. Thedens DR, Pedersen DR, Martin JA, Brown TD. T1rho imaging of mechanically stressed human cartilage. ISMRM 14th Scientific Meeting, May 6–12, 2006, Seattle, Washington. Oral Presentation. 270. Callaghan JJ, Firestone DE, Liu SS, Pedersen DR, Goetz DD, Sullivan PM, Vittetoe DA, Johnston RC. Minimum 10-year follow-up of three cemented femoral components with essentially the same geometry but different surface finishes. 119th Annual Meeting of the American Orthopaedic Association (AOA), June 21–24, 2006, San Antonio, Texas. 271. Lundberg HJ, Pedersen DR, Callaghan JJ, Brown TD. Effects of implant design parameters on fluid ingress during THA impingement/subluxation. 5 th World Congress on Biomechanics, July 29–August 4, 2006, Munich, Germany. Podium Presentation #4362. 104 College of Medicine Curriculum Vitae Douglas Ray Pedersen 272. Goetz JE, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. Multi-scale geometric measurements of experimentally induced osteonecrotic lesions in an emu model. 30th Annual Meeting of the American Society of Biomechanics, September 6–9, 2006, Blacksburg, Virginia. Session: Bone/Cartilage, Poster Presentation. 273. Goetz JE, Derrick TR, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. Anatomy-based model of normal emu during gait. 30th Annual Meeting of the American Society of Biomechanics, September 6–9, 2006, Blacksburg, Virginia. Session: Modeling, Podium Presentation. 274. Goldsworthy JK, Anderson DD, Rudert MJ, Tochigi Y, Pedersen DR, Brown TD. Validation of a patient-specific finite element model of the ankle. 30th Annual Meeting of the American Society of Biomechanics, September 6–9, 2006, Blacksburg, Virginia. Session: Finite Element Analysis, Podium Presentation. MicroStrain Award Winner. 275. Lundberg HJ, Pedersen DR, Callaghan JJ, Brown TD. Effects of implant design parameters on fluid ingress during THA impingement/subluxation. 30th Annual Meeting of the American Society of Biomechanics September 6–9, 2006, Blacksburg, Virginia. Session: Pre-doc Award, Podium Presentation. 276. Tochigi Y, Rudert MJ, McKinley TO, Pedersen DR, Brown TD. Cartilage contact stress aberration during unstable joint motion. 30th Annual Meeting of the American Society of Biomechanics, September 6–9, 2006, Blacksburg, Virginia. Poster Presentation. 277. Callaghan JJ, O’Rourke MR, Liu SS, Pedersen DR, Johnston RC. Follow-up of a cemented collared matte finish femoral component at 19 to 20 years. Closed Meeting of the Hip Society, Iowa City, Iowa, September 7–9, 2006. 278. Callaghan JJ, Lundberg HJ, Liu SS, Pedersen DR, O’Rourke MR, Goetz DD, Vittetoe DA, Clohisy J, Brown TD. Analysis of retrieved acetabular liners for impingement damage and embedded third body debris. Closed Meeting of the Hip Society, Iowa City, Iowa, September 7– 9, 2006. 279. Lundberg HJ, Callaghan JJ, Liu SS, Pedersen DR, O’Rourke MR, Goetz DD, Vittetoe DA, Clohisy J, Brown TD. Analysis of retrieved acetabular liners for impingement damage and embedded third body debris. The Hip Society Summer Meeting, September 7–9, 2006, Iowa City, Iowa. 280. Yehyawi TM, Callaghan JJ, O’Rourke MR, Pedersen DR, Liu SS. Implications of sagittal femoral bowing on knee arthritis and total knee arthroplasty. University of Iowa College of Medicine 105 College of Medicine Curriculum Vitae Douglas Ray Pedersen Student Research Day, University of Iowa, September 8, 2006, Iowa City, Iowa. Outstanding Poster Award. 281. Callaghan JJ, Yehyawi TM, O’Rourke MR, Pedersen DR, Liu SS, Clark CR. Implications of sagittal femoral bowing on knee arthritis and total knee replacement. Knee Society Interim Meeting September 28–30, 2006, Alexandria, Virginia. Podium Presentation. 282. Callaghan JJ, Yehyawi TM, O’Rourke MR, Liu SS, Pedersen DR. Implication of sagittal femoral bowing on knee arthritis and total knee replacement. 16th Annual Meeting of the American Association of Hip and Knee Surgeons, November 3–5, 2006, Dallas, Texas. 283. Callaghan JJ, Altenburg A, Leinen JA, Dahl KA, Pedersen DR, Liu SS, Goetz DD, Vittetoe DA, Sullivan PM, Chung YY, Johnston RC. The effect of cable debris on acetabular construct durability in cemented total hip arthroplasty at nineteen to twenty year follow-up. 16th Annual Meeting of the American Association of Hip and Knee Surgeons, November 3–5, 2006, Dallas, Texas. 284. Goetz JE, Pedersen DR, Brown TD. Thermal property determination of emu cancellous bone using finite element modeling. 15th Annual Symposium on Computational Methods in Orthopaedic Biomechanics, February 10, 2007, University of California - San Diego, La Jolla, California. 285. Mittelholtz KS, Pedersen DR, Mendoza SA, Mayer HM, Siepe C, Hall RM, Brown TD. Finite element analysis of total disc replacement wear. 15th Annual Symposium on Computational Methods in Orthopaedic Biomechanics, February 10, 2007, University of California - San Diego, La Jolla, California. Podium Presentation Session III: Spine, Poster Presentation. 286. Moussavi-Harami SF, Pedersen DR, Martin JA, Brown TD. Quantitative image analysis of cartilage histology. 15th Annual Symposium on Computational Methods in Orthopaedic Biomechanics, February 10, 2007, University of California - San Diego, La Jolla, California. Oral Poster Introduction Session II: Poster Intro. 287. Rumery MP, Pedersen DR, Brown TD, Mendoza SA, Mayer HM, Siepe C, Hall RM. Performance of a novel pose-based technique for measuring total disc replacement wear. 15 th Annual Symposium on Computational Methods in Orthopaedic Biomechanics, February 10, 2007, University of California - San Diego, La Jolla, California. Oral Poster Introduction Session II: Poster Intro. 106 College of Medicine Curriculum Vitae Douglas Ray Pedersen 288. Goetz JE, Derrick TR, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. A gait-based anatomic analysis of emu hip joint loading. 53rd Annual Meeting of the Orthopaedic Research Society, February 11–14, 2007, San Diego, California. Poster Presentation #1823. 289. Goetz JE, Derrick TR, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. Evaluation of osteonecrotic lesion volume in the emu femoral head by three dimensional histology. 53rd Annual Meeting of the Orthopaedic Research Society, February 11–14, 2007, San Diego, California. Poster Presentation #1319. 290. Hecht BA, Martin JA, Pedersen DR, Heiner AD, Amendola R, Buckwalter JA. Oxidant preconditioning protects cartilage from mechanically-induced cell death. 53rd Annual Meeting of the Orthopaedic Research Society, February 11–14, 2007, San Diego, California. San Diego, California. Paper Presentation #115, Session 21: Chondrocyte Mechanotransduction. 291. Lundberg HJ, Liu SS, Pedersen DR, Callaghan JJ, Brown TD. Analysis of retrieved acetabular liners for impingement damage and embedded third body debris. 53rd Annual Meeting of the Orthopaedic Research Society, February 11–14, 2007, San Diego, California. Poster Presentation #1645. 292. Martin JA, Pedersen DR, Heiner AD, Buckwalter JA, Brown TD. N-acetyl cysteine protects cartilage from loading-induced proteoglycan loss. 53rd Annual Meeting of the Orthopaedic Research Society, February 11–14, 2007, San Diego, California. Poster Presentation #566. 293. Moussavi-Harami SF, Pedersen DR, Martin JA, Brown TD. Automated objective scoring of osteoarthritis severity. 53rd Annual Meeting of the Orthopaedic Research Society, February 11– 14, 2007, San Diego, California. Poster Presentation #1255. 294. Stroud NJ, Martin JA, Pedersen DR, Goetz JE, Brown TD. Structure and function of emu versus human articular cartilage. 53rd Annual Meeting of the Orthopaedic Research Society, February 11–14, 2007, San Diego, California. Poster Presentation #602. 295. Thedens DR, Pedersen DR, Martin JA, Brown TD. Assessment of mechanically stressed human cartilage with T1ρ imaging. 53rd Annual Meeting of the Orthopaedic Research Society, February 11–14, 2007, San Diego, California. Poster Presentation #378. Short Talk 9:Imaging of Musculoskeletal Cells and Tissues. 296. Tochigi Y, Rudert MJ, McKinley TO, Pedersen DR, Brown TD. An experimental model of joint instability for study of dynamic cartilage contact mechanics. 53 rd Annual Meeting of the Orthopaedic Research Society, February 11–14, 2007, San Diego, California. Poster Presentation #614. 107 College of Medicine Curriculum Vitae Douglas Ray Pedersen 297. Yehyawi TM, Callaghan JJ, O’Rourke MR, Liu SS, Pedersen DR. Implications of sagittal femoral bowing on knee arthritis and total knee replacement. 53 rd Annual Meeting of the Orthopaedic Research Society, February 11–14, 2007, San Diego, California. Poster Presentation. 298. McKinley TO, Tochigi Y, Rudert MJ, Pedersen DR, Brown TD. Instability-associated changes in contact stress and contact stress rates in human ankles. 74 th Annual Meeting of the American Academy of Orthopaedic Surgeons, February 14–18, 2007, San Diego, California. Poster #P466. 299. Callaghan JJ, Lundberg HJ, Liu SS, Pedersen DR, O’Rourke MR, Goetz DD, Vittetoe DA, Clohisy J, Brown TD. Analysis of retrieved acetabular liners for impingement damage and embedded third body debris. 2007 Annual Meeting of the Mid-America Orthopaedic Association, April 11–15, 2007, Boca Raton, Florida. Poster Presentation #29. 300. Yehyawi T, Callaghan JJ, O’Rourke MR, Liu SS, Pedersen DR. Implication of sagittal femoral bowing on knee arthritis and total knee replacement. 2007 Annual Meeting of the Mid-America Orthopaedic Association, April 11–15, 2007, Boca Raton, Florida. Poster Presentation #50. 301. Mittelholtz KS, Pedersen DR, Mendoza SA, Mayer HM, Siepe C, Hall RM, Brown TD. Finite element analysis of total disc replacement wear. 7 th Annual Meeting of the Spine Arthroplasty Society, May 1–4, 2007, Berlin, Germany. Poster Presentation. 302. Rumery MP, Pedersen DR, Brown TD, Mendoza SA, Mayer HM, Siepe C, Hall RM. Accuracy of a novel pose-based technique for in-vivo measurement of total disc replacement wear. 7 th Annual Meeting of the Spine Arthroplasty Society, May 1–4, 2007, Berlin, Germany. Poster Presentation. 303. Thedens DR, Martin JA, Pedersen DR, Brown TD. Detection of proteoglycan depletion in mechanically loaded cartilage with T1&[rho] imaging. ISMRM-ESMRMB Joint Annual Meeting, May 19–25, 2007, Berlin, Germany. 304. Callaghan JJ, Leinen JA, Liu SS, Klaassen AL, Pedersen DR. Three to five year radiographic follow-up of moderately cross-linked Marathon polyethylene in total hip replacement. 120 th Annual Meeting of the American Orthopaedic Association, Asheville, North Carolina, June 13– 16, 2007. 305. Callaghan JJ, Donigan JA, Teusink MJ, Warth LC, Liu SS, Sullivan J, Goetz DD, Vittetoe DA, Pedersen DR, Johnston RC. Cementless acetabular fixation in patients age 50 and under: a 10 to 18 year follow-up study. 120th Annual Meeting of the American Orthopaedic Association, June 13–16, 2007, Asheville, North Carolina . 108 College of Medicine Curriculum Vitae Douglas Ray Pedersen 306. Callaghan JJ, Lundberg HJ, Liu SS, Pedersen DR, O’Rourke MR, Goetz DD, Vittetoe DA, Clohisy JC, Brown TD. Analysis of retrieved acetabular liners for impingement damage and embedded third body debris. 120th Annual Meeting of the American Orthopaedic Association, Asheville, North Carolina, June 13–16, 2007. 307. Callaghan JJ, Altenburg A, Yehyawi TM, Dahl KA, Pedersen DR, Liu SS, Goetz DD, Vittetoe DA,Sullivan PM, Chung YY, Johnston RC. The effect of cable debris on acetabular construct durability in cemented total hip arthroplasty at nineteen to twenty year follow-up. 120th Annual Meeting of the American Orthopaedic Association, June 13–16, 2007, Asheville, North Carolina. 308. Heiner AD, Lundberg HJ, Baer TE, Pedersen DR, Callaghan JJ, Brown TD. Episodic subluxation increases third body ingress and embedment in the THA bearing surface. 31st Annual Meeting of the American Society of Biomechanics, August 22–25, 2007, Stanford, California. Podium 3: Bone I. 309. Tochigi Y, Rudert MJ, McKinley TO, Pedersen DR, Brown TD. Correlation of dynamic cartilage contact stress aberration with severity of joint instability. 31 st Annual Meeting of the American Society of Biomechanics, August 22–25, 2007, Stanford, California. Poster Presentation P4-15. 310. Brown TD, Pedersen DR, Stewart KJ, Callaghan JJ. Biomechanical studies of total hip impingement/dislocation. (Invited Plenary Lecture) 15 th Triennial Congress of the Asian Pacific Orthopaedic Association (APOA) 2007, September 11, 2007, Seoul, Korea, p. 136. 311. Brown TD, Goetz JE, Pedersen DR, Conzemius MG. The emu as a bipedal animal model of femoral head osteonecrosis. (Seminar) Biomedical Engineering Technology Institute, Yonsei University, September 13, 2007, Seoul, South Korea. 312. Brown TD, Rumery MP, Mittelholtz K, Pedersen DR, Mendoza SA. New computational techniques to assess wear of total disc replacement implants. (Seminar) Biomedical Institute, Solco Biomedical Co., Ltd., September 14, 2007, Pyungteak, Korea. 313. Goetz JE, Derrick TR, Pedersen DR, Robinson DA, Conzemius MG, Brown, TD. Contact forces in the emu hip joint during normal walking. 6th Combined Meeting of the Orthopaedic Research Societies, October 20–24, 2007, Honolulu, Hawaii. Podium Presentation Session 27: Gait and Function. 314. Callaghan JJ, Yehyawi TM, O’Rourke MR, Pedersen DR, Liu SS. Implications of sagittal femoral bowing on knee arthritis and total knee replacement. American Association of Hip and Knee Surgeons 17th Annual Meeting, November 2–4, 2007, Dallas, Texas. 109 College of Medicine Curriculum Vitae Douglas Ray Pedersen 315. Moussavi-Harami SF, Pedersen DR, Martin JA, Hillis SL, Brown TD. Comparison of the ICRS versus HHGS (Mankin) cartilage histology scales. OARSI World Congress on Osteoarthrits 2007, December 6–9, 2007, Ft. Lauderdale, Florida. Poster Presentation. 316. Moussavi-Harami SF, Pedersen DR, Martin JA, Hillis SL, Brown TD. Automated objective scoring of cartilage histology. OARSI World Congress on Osteoarthrits 2007, December 6–9, 2007, Ft. Lauderdale, Florida. Poster Presentation. 317. Goetz JE, Pedersen DR, Robinson DA, Conzemius MG, Brown, TD. A finite element study of the structural effects of lesion morphology in a bipedal animal model of femoral head osteonecrosis. 16th Annual Symposium on Computational Methods in Orthopaedic Biomechanics, Saturday, March 1st, 2008, University of California-San Francisco, San Francisco, California. Poster and Podium Presentation. 318. Brown TD, Rumery M, Pedersen DR, Mendoza SA. A pose-based image analysis technique for measuring wear of total disc replacements. 54th Annual Meeting of the Orthopaedic Research Society, March 2–5, 2008, San Francisco, California. Poster Presentation #1923, Session 44: Implant Wear. 319. Heiner AD, Lundberg HJ, Baer TE, Pedersen DR, Callaghan JJ, Brown TD. Episodic subluxation increases third body ingress and embedment in the THA bearing surface. 54 th Annual Meeting of the Orthopaedic Research Society, March 2–5, 2008, San Francisco, California. Poster Presentation #: 1902, Session 44: Implant Wear. 320. Ramakrishnan PS, Stroud NJ, Pedersen DR, Buckwalter J A, Martin JA. Time dependent mechanical changes in cartilage after single blunt impact injury in vitro bovine osteochondral model. 54th Annual Meeting of the Orthopaedic Research Society, March 2–5, 2008, San Francisco, California. Poster Presentation. 321. Stroud NJ, Ramakrishnan PS, Pedersen DR, BrownTD, Martin JA. Characterization of emu and bovine tissue response to injury. 54th Annual Meeting of the Orthopaedic Research Society, March 2–5, 2008, San Francisco, California. Poster Presentation. 322. Callaghan JJ, Lundberg HJ, Liu SS, Pedersen DR, O’Rourke MR, Goetz DD, Vittetoe DA, Clohisy J, Brown TD. Analysis of retrieved acetabular liners for impingement damage and embedded third body debris. 75 th Annual Meeting of theAmerican Academy of Orthopaedic Surgeons, March 5–9, 2008, San Francisco, California. Poster Presentation #101. 323. Mittelholtz K, Pedersen DR, Mendoza SA, Mayer HM, Siepe C, Hall RM, Brown TD. Finite element analysis of total disc replacement wear. Spine Arthroplasty Society, Global Symposium 110 College of Medicine Curriculum Vitae Douglas Ray Pedersen on Motion Preservation Technology 8th Annual Meeting, May 6–9, 2008, Miami, Florida. Poster Presentation #P53. 324. Rumery MP, Pedersen DR, Mendoza SA, Siepe C, Mayer HM, Brown TD. A pose-based image analysis technique for measuring wear of total disc replacements.Spine Arthroplasty Society, Global Symposium on Motion Preservation Technology 8th Annual Meeting, May 6–9, 2008, Miami, Florida. Poster Presentation #P36. 325. Brown TD, Hall RM, Mayer HM, Goreham-Voss CM, Gaddam S, Pedersen DR, Mendoza SA, Fisher J, Ingham I, Vicars R, Marsh JL, Siepe C. Wear analysis of intervertebral disc replacements. Eighth Annual Bioengineering Research Partnership Grantee Meeting, National Institutes of Health Bioengineering Consortium, June 23–24, 2008, Bethesday, Maryland, Poster Presentation. 326. Thedens DR, Martin JA, Mastbergen S, DeGroot J, Tadimalla S, Pedersen DR. Age, DJD, OA: AGE, GAG, T1ρ MRI. 2nd Annual Workshop on Imaging Based Measures of Osteoarthritis, June 25–28, 2008, Boston, Massachusetts, Poster Presentation. 327. Amendola RL, Martin JA, Kurriger GL, Moussavi-Harami SF, Brown TD, Pedersen DR. Automated Mankin scoring of osteoarthritis severity in rabbits. The North American Congress on Biomechanics (NACOB 2008), August 5–9, 2008, Ann Arbor, Michigan. Poster Presentation, Session 1. 328. McCabe DJ, Stroud NJ, Pedersen DR, Martin JA. An innovative method to analyze the chondrocyte response to mechanical injury both temporally and spatially. The North American Congress on Biomechanics (NACOB 2008), August 5–9, 2008, Ann Arbor, Michigan. Podium Presentation, Session 3. 329. Pedersen DR, Thedens DR, Martin JA, Tadimalla S, Ramakrishnan PS, Amendola A. ACL rupture in an in vivo impact model. The North American Congress on Biomechanics (NACOB 2008), August 5–9, 2008, Ann Arbor, Michigan. Podium Presentation, Session 28. 330. Goreham-Voss CM, McCabe DJ, Rudert MJ, Martin JA, Pedersen DR, Brown TD. Spatial correlations between local impact stress and cell death distributions. OARSI World Congress on Osteoarthritis 2008, September 18–21, 2008, Rome, Italy. Poster Presentation #121. 331. McCabe DJ, Stroud NJ, Ramakrishnan P, Buckwalter JA, Pedersen DR, Martin JA. Intracellular oxidant production by chondrocytes in osteochondral explants following blunt impact injury. OARSI World Congress on Osteoarthritis 2008, September 18–21, 2008, Rome, Italy. Poster Presentation #187. 111 College of Medicine Curriculum Vitae Douglas Ray Pedersen 332. Amendola RL, Martin JA, Kurriger GL, Moussavi-Harami, SF, Brown TD, Pedersen DR. Automated Mankin grading of OA severity in rabbits. 55th Annual Meeting of the Orthopaedic Research Society, February 22–25, 2009, Las Vegas, Nevada. Poster Presentation #1076, Poster Session 24: Cartilage Matrix Degeneration. 333. Goetz JE, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. Effects of lesion location on collapse propensity in the emu model of femoral head osteoecrosis. 55 th Annual Meeting of the Orthopaedic Research Society, February 22–25, 2009, Las Vegas, Nevada. Poster Presentation #722, Poster Session 12: Bone—Material Properties and Mechanics. 334. Goetz JE, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. Thermal history determinants of cryogenically-induced osteonecrosis in emu cancellous bone. 55 th Annual Meeting of the Orthopaedic Research Society, February 22–25, 2009, Las Vegas, Nevada. Podium Presentation, Paper #40, Session 08: Hip Disorders. 335. Goetz JE, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. Increased incidence of femoral head collapse in the emu model of osteonecrosis following a drill guide-positioned cryoprobe insult. 55th Annual Meeting of the Orthopaedic Research Society, February 22–25, 2009, Las Vegas, Nevada. Poster Presentation #723, Poster Session 12: Bone—Material Properties and Mechanics. 336. Goetz JE, Pedersen DR, Robinson DA, Conzemius MG, Brown TD. Comparison of bone mineralization rates between avian and mammalian models of femoral head osteonecrosis. 55 th Annual Meeting of the Orthopaedic Research Society, February 22–25, 2009, Las Vegas, Nevada. Podium Presentation, Paper #277, Poster Presentation #277, Short Talk Session 01: Bone Structure and Mechanics I. 337. Pedersen DR, Martin JA, Mastbergen S, DeGroot J, Tadimalla S, Thedens DR. AGE effects on PG-sensitive T1 MRI. 55th Annual Meeting of the Orthopaedic Research Society, February 22–25, 2009, Las Vegas, Nevada. Poster Presentation #1159, Poster Session 32: Osteoarthritis—Imaging. 338. Ramakrishnan P, Stroud N, McCabe D, Pedersen DR. Repeated measures improves detection of early degenerative changes after cartilage injury. 55 th Annual Meeting of the Orthopaedic Research Society, February 22–25, 2009, Las Vegas, Nevada. Poster Presentation #1082, Poster Session 25: Cartilage Impact Models. 339. Stroud NJ, McCabe D, Goodwin W, Pedersen DR, Martin JA. An innovative method for analysis of the distribution and timing of chondrocyte responses to mechanical injury in vitro. 55th Annual 112 College of Medicine Curriculum Vitae Douglas Ray Pedersen Meeting of the Orthopaedic Research Society, February 22–25, 2009, Las Vegas, Nevada. Poster Presentation #1083, Poster Session 25: Cartilage Impact Models. 340. Tadimalla S, Thedens DR, Martin JA, Amendola A, Pedersen DR. Cartilage health post-ACL injury: T1 dGEMRIC measurements. 55th Annual Meeting of the Orthopaedic Research Society, February 22–25, 2009, Las Vegas, Nevada. Podium Presentation, Paper #237, Session 43: Cartilage Imaging. 341. dGEMRIC measurements post-ACL reconstruction. Sports Medicine Traveling Fellows, University of Iowa Department of Orthoapedics & Rehabilitation, March 10, 2009, Iowa City, Iowa. 342. Elkins JM, Pedersen DR, Tochigi Y, Callaghan JJ, Weiss JA, Andersen AE, Brown TD. Incorporating the hip capsule in a dynamic finite element model of total hip arthroplasty. Carver College of Medicine, College of Pharmacy, College of Public Health and VA Health System Research Week, April 14–15, 2009, Iowa City, Iowa. Poster Presentation. 343. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Impingement contact mechanics of hard-onhard total hip bearings. Carver College of Medicine, College of Pharmacy, College of Public Health and VA Health System Research Week, April 14–15, 2009, Iowa City, Iowa. Poster Presentation. 344. Stroud NJ, McCabe DJ, Goodwin WG, Pedersen DR, Martin JA. An innovative method for analysis of chondrocyte responses to mechanical injury in vitro both spatially and temporally. The University of Iowa College of Engineering’s Research Open House, April 16, 2009, Iowa City, Iowa. Poster Presentation. 345. Thedens DR, Tadimalla S, Martin JA, Amendola A, Pedersen DR. T1 assessment of human cartilage in an impact injury model. International Society for Magnetic Resonance in Medicine th 17 Scientific Meeting & Exhibition, Honolulu, Hawaii, April 18–24, 2009. Multimedia E-poster Session: Cartilage: Quantitative Techniques & Loading. 346. Pedersen DR, Tadimalla S, Thedens DR, Martin JA, Amendola A. Same day T1, T2 and dGEMRIC measurements of cartilage post-ACL injury. 3rd International OA imaging Workshop Osteoarthritis Imaging: Capitalising on the Knowledge Investment, May 13–16, 2009, York, United Kingdom. Podium Presentation. 347. Brown TD, Lundberg HJ, Pedersen DR, Callaghan JJ. Clinical biomechanics of third body acceleration of total hip wear. 61st Annual Meeting of the Association of Bone and Joint Surgeons, May 13–17, 2009, Maui, Hawaii. 113 College of Medicine Curriculum Vitae Douglas Ray Pedersen 348. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Orientation-dependent impingement contact mechanics for hard-on-hard total hip bearings. 33rd Annual Meeting of the American Society of Biomechanics, August 26–29, 2009, State College, Pennsylvania. Poster Presentation. 349. Williams G, Allen E, Wu J, Rudert MJ, Pedersen DR. Assessment of the Pressore Step™ system as an extended wear weightbearing activity monitor for use with orthopaedic patients. 33rd Annual Meeting of the American Society of Biomechanics, August 26–29, 2009, State College, Pennsylvania. Poster Presentation. 350. Thedens DR, Tadimalla S, Martin JA, Amendola A, Pedersen DR. T1rho assessment of human cartilage impact injury model. OARSI World Congress on Osteoarthritis 2009, September 10– 13, 2009, Montreal, Quebec, Canada. Abstract Control # 457, Poster Presentation. 351. Pedersen, DR, Elkins JM, Callaghan JJ, Brown TD. Impingement contact mechanics of total hip bearings. Closed Scientific Meeting of the Hip Society September 24–26, 2009, Palo Alto, California, Podium Presentation, Session V: Impingement and Dislocation. 352. Williams GN, Thedens DR, Tadimalla S, Amendola A, Pedersen DR. T1rho imaging of cartilage in the first year after ACL injury. Segal North American Osteoarthritis Workshop III, October 1–3, 2009, Chigago, Illinois. Poster Presentation. 353. Elkins JM, Pedersen DR, Tochigi Y, Rudert MJ, Ellis BJ, Callaghan JJ, Weiss JA, Brown TD. Implementing a fiber-directed anisotropic capsule in a total hip arthroplasty dislocation finite element model. 56th Annual Meeting of the Orthopaedic Research Society, March 6–9, 2010, New Orleans, Louisiana. Poster #2111: Session 57 Arthropolasty - Finite Element Analysis. 354. Elkins JM, Pedersen DR, Tochigi Y, Rudert MJ, Ellis BJ, Callaghan JJ, Weiss JA, Brown TD. Effect of cup orientation on resistance to hip dislocation during flexion/exorotation-dominated kinetic challenge. 56th Annual Meeting of the Orthopaedic Research Society, March 6–9, 2010, New Orleans, Louisiana. Poster #2029: Session 54 Total Hip Arthroplasty – Biomechanics. 355. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Impingement contact mechanics for hard-onhard total hip bearings. 56th Annual Meeting of the Orthopaedic Research Society, March 6–9, 2010, New Orleans, Louisiana. Poster #2110: Session 57 Arthropolasty - Finite Element Analysis. 356. Kang L, Baer TE, Rudert MJ, Pedersen DR, Brown TD. An iterative calibration algorithm for transient contact stress sensor grids. 56th Annual Meeting of the Orthopaedic Research Society, March 6–9, 2010, New Orleans, Louisiana. Paper #405: Short Talk Session 18 Total Knee Arthroplasty. 114 College of Medicine Curriculum Vitae Douglas Ray Pedersen 357. Seol DR, Choe HH, Jang KW, Lehman AD, Homandberg G, Heiner AD, Ramakrishnan PS, Lim TH, Martin JA, Pedersen DR. Effect of impact-induced chemical factors on bovine articular cartilage: A cell proliferation and migration study. 56th Annual Meeting of the Orthopaedic Research Society, March 6–9, 2010, New Orleans, Louisiana. Poster #981: Session 27 Cartilage Repair. 358. Thedens DR, Klocke NF, Martin JA, Baer TE, Pedersen DR. Effect of B0 magnetic field changes on quantitative T1 relaxation measurements. 56th Annual Meeting of the Orthopaedic Research Society, March 6–9, 2010, New Orleans, Louisiana. Poster #1353: Session 36 Imaging and Diagnostics. 359. Klocke NF, Thedens DR, Martin JA, Brown TD, Pedersen DR. Semi-automatic canny edge detected line profiles through the lateral femoral condyle in normal subjects using articular cartilage-specific MRI. The University of Iowa College of Engineering’s Research Open House, April 8, 2010, Iowa City, Iowa. Poster Presentation. 360. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Impingement contact mechanics for hard-onhard total hip bearings. The Carver College of Medicine, College of Pharmacy, College of Public Health, Institute for Clinical and Translational Science and VA Health System Research Week, April 13–15, 2010, Iowa City, Iowa. Poster Presentation. 361. Thedens DR, Klocke NF, Amendola A, Pedersen DR. Semi-automated profile generation for functional cartilage imaging. ISMRM/ESMRMB Joint Annual Meeting, May 1–7, 2010, Stockholm, Sweden. Multimedia E-Poster. Session: Meniscus & Cartilage. 362. Thedens DR, Klocke NF, Martin JA, Baer TE, Pedersen DR. Effect of B0 magnetic field changes on quantitative T1 relaxation measurements. 4th International Workshop on Imaging Based Measures of Osteoarthritis. June 2–4, 2010 Vancouver, Canada. Podium Presentation: Session I. 363. Klocke NF, Thedens DR, Martin JA, Amendola A, Brown TD, Pedersen DR. A line profile approach to quantify PTOA using T1rho MRI. 6th World Congress on Biomechanics, August 1– 6, 2010, Suntec City, Singapore. Podium Presentation. 364. Elkins JM, Rudert MJ, Tochigi Y, Pedersen DR, Ellis B, Callaghan JJ, Weiss JA, Brown TD. The capsule’s contribution to total hip construct stability—A finite element analysis. 34th Annual Meeting of the American Society of Biomechanics, August 18–21, 2010, Providence, Rhode Island. Podium Presentation: Computational Modeling Session. 115 College of Medicine Curriculum Vitae Douglas Ray Pedersen 365. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Three dimensional fracture mechanics of ceramic total hip bearings. 34th Annual Meeting of the American Society of Biomechanics, August 18–21, 2010, Providence, Rhode Island. Podium Presentation: Orthopaedics Session. 366. Klocke NF, Thedens DR, Martin JA, Amendola A, Brown TD, Pedersen DR. A line profile approach to quantify PTOA using T1r MRI. 34th Annual Meeting of the American Society of Biomechanics, August 18–21, 2010, Providence, Rhode Island. Poster Presentation. 367. Thedens DR, Klocke NF, Martin JA, Baer TE, Pedersen DR. Effect of B0 magnetic field changes on quantitative T1r relaxation measurements. 2010 Osteoarthritis Research Society International (OARSI) World Congress, September 23–26, 2010, Brussels, Belgium. Poster Presentation. 368. Pedersen DR, Thedens DR, Klocke NF, Amendola A. Semi-automated profile generation for functional cartilage imaging. 7th Combined Meeting of the Orthopaedic Research Societies (CORS), October 16–20, 2010, Kyoto, Japan. Poster Presentation. 369. Elkins JM, Stroud NJ, Pedersen DR, Tochigi Y, Rudert MJ, Callaghan JJ, Weiss JA, Brown TD. The effect of regional hip capsule defects on total hip dislocation stability — A finite element analysis. 57th Annual Meeting of the Orthopaedic Research Society, January 13–16, 2011, Long Beach, California. Poster #1019: Session Title: Arthroplasty: Finite Element Analysis. 370. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Total hip instability in the morbidly obese patient — A finite element exploration. 57th Annual Meeting of the Orthopaedic Research Society, January 13–16, 2011, Long Beach, California. Podium Presentation: Session 03 Implant FE Modeling. 371. Klocke NF, Thedens DR, Amendola A, Martin JA, Pedersen DR. Sensitivity of T1ρ MRI to cartilage injury after acute ACL rupture. 57th Annual Meeting of the Orthopaedic Research Society, January 13–16, 2011, Long Beach, California. Poster #1582: Session Title: Diagnostics Tissue and Organ Imaging. 372. Teusink MJ, Callaghan KA, Klocke NF, Pedersen DR, Johnston RC, Callaghan JJ. Femoral remodeling around well-fixed cemented Charnley total hip Arthroplasty: A minimum twenty year follow-up study. 57th Annual Meeting of the Orthopaedic Research Society, January 13–16, 2011, Long Beach, California. Poster #0984: Session Title: Arthroplasty: Hip, Clinical. 373. Elkins JM, Stroud NJ, Pedersen DR, Tochigi Y, Rudert MJ, Callaghan JJ, Weiss JA, Brown TD. The effect of regional hip capsule defects on total hip dislocation stability — A finite element analysis. 57th Annual Meeting of the Orthopaedic Research Society, January 13–16, 2011, Long 116 College of Medicine Curriculum Vitae Douglas Ray Pedersen Beach, California. ORS Awards Presentation, January 15, 2011. William H. Harris Award Winner. 374. Klocke NF, Thedens DR, Martin JA, Amendola A, Pedersen DR, Brown TD. Comparison of compositional cartilage changes after ACL rupture as detected by T1ρ MRI. 9th Annual College of Engineering Research Open House, April 7, 2011, Iowa City, IA. Poster Presentation. 375. Elkins JM, Pedersen DR, Tochigi Y, Callaghan JJ, Brown TD. The effect of variable capsulorrhaphy on total hip stability. The Carver College of Medicine, College of Pharmacy, College of Public Health, Institute for Clinical and Translational Science and VA Health System Translational Genomics Health Sciences Research Week, April 13, 2011, Iowa City, Iowa. Poster Presentation. 376. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Fracture mechanics of ceramic total hip liners during impingement. The Carver College of Medicine, College of Pharmacy, College of Public Health, Institute for Clinical and Translational Science and VA Health System Translational Genomics Health Sciences Research Week, April 13, 2011, Iowa City, Iowa. Poster Presentation. 377. Elkins JM, Pedersen DR, Yack JH, Callaghan JJ, Brown TD.Increased risk of dislocation in morbidly obese total hip patients—A finite element analysis. The Carver College of Medicine, College of Pharmacy, College of Public Health, Institute for Clinical and Translational Science and VA Health System Translational Genomics Health Sciences Research Week, April 13, 2011, Iowa City, Iowa. Poster Presentation. 378. Elkins JM, Kruger KM, Pedersen DR, Callaghan JJ, Brown TD. The influence of total hip cup geometry on edge-loading severity in metal-on-metal bearings. The Carver College of Medicine, College of Pharmacy, College of Public Health, Institute for Clinical and Translational Science and VA Health System Translational Genomics Health Sciences Research Week, April 13, 2011, Iowa City, Iowa. Poster Presentation. Poster selected for Most Outstanding Entry for the Carver College of Medicine. 379. Thedens DR, Klocke NF, Martin JA, Baer TE, Pedersen DR. Consistency of T1measurements: A phantom study. ISMRM Annual Meeting, May 9–12, 2011, Montréal, Québec, Canada. Poster Presentation #1099. 380. Klocke NF, Thedens DR, Amendola A, Pedersen DR, Brown TD. Towards T1rho in the clinic: A 3.0T and 1.5T comparison. OARSI 5th International Workshop on Osteoarthritis Imaging, June 8–11, 2011, Salzburg, Austria. Poster Presentation. 117 College of Medicine Curriculum Vitae Douglas Ray Pedersen 381. Elkins JM, Pedersen DR, Sing B, Yack JH, Callaghan JJ, Brown TD. Dislocation in the morbidly obese total hip patient. 35th Annual Meeting of the American Society of Biomechanics, August 10–13, 2011, Long Beach, California. Podium Presentation: Orthopaedics. 382. Klocke NF, Thedens DR, Amendola A, Pedersen DR. Effects of spin-lock time selection in T1rho relaxometry. OARSI World Congress on Osteoarthritis 2011, September 15–18, 2011, San Diego, California. Poster Presentation. 383. Jacob M. Elkins, Thomas D. Brown, PhD, Douglas R. Pedersen, and John J. Callaghan, MD. Advanced Fracture Analysis of 36-mm Alumina Total Hip Bearings. Summer Meeting of The Hip Society, September 22-24, 2011. Joint Implant Surgeons, Inc. New Albany, Ohio 384. Ryan K. Takenaga, MA, MD; Nicholas A. Bedard, BS; Steve S. Liu, MD; Alison L. Klaassen, MA; Douglas R. Pedersen, PhD; John J. Callaghan, MD. Cementless THA in Patients Age 50 and Under at Minimum 10-Year Follow-Up: What Can Be Learned Concerning Durability of the Construct? Poster, AAHKS 11/7/2011 385. Ryan K. Takenaga, MA, MD; Nicholas A. Bedard, BS; Steve S. Liu, MD; Alison L. Klaassen, MA; Douglas R. Pedersen, PhD; John J. Callaghan, MD. Do We Need Pedometer Data to Differentiate Long-Term Function Following Total Hip Replacement? Podium, AAHKS 11/7/2011. 386. Elkins JM, Pedersen DR, Singh B, Yack HJ, Callaghan JJ, Brown TD. Dislocation in the Morbidly Obese Total Hip Patient. 35th Annual Meeting of the American Society of Biomechanics, August 18–21, 2011, Long Beach, California. Podium presentation, Orthopedics Session 387. Elkins JM, Brown TD, Pedersen DR, Callaghan JJ. Advanced Fracture Analysis of 36-mm Alumina Total Hip Bearings. Closed 2011 Scientific Meeting of the Hip Society. September 2224, 2011. New Albany, Ohio 388. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Bone-on-Bone vs. Implant Impingement in Large Diameter Total Hips. 58th Annual Meeting of the Orthopaedic Research Society, February 4-7, 2012. San Francisco, California. 389. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Toward Optimizing Orientation in Metal-onMetal Total Hips: Balancing Competing Considerations. 58th Annual Meeting of the Orthopaedic Research Society, February 4-7, 2012. San Francisco, California. 118 College of Medicine Curriculum Vitae Douglas Ray Pedersen 390. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Edge-Scraping Wear in Metal-on-Metal Total Hips. 58th Annual Meeting of the Orthopaedic Research Society, February 4-7, 2012. San Francisco, California. 391. Elkins JM, Liu X, Pedersen DR, Callaghan JJ, Brown TD. Computational Fracture Analysis of Ceramic-on-Ceramic Total Hip Liners. 58th Annual Meeting of the Orthopaedic Research Society, February 4-7, 2012. San Francisco, California. 392. Thomas Brown, PhD; Jacob Elkins, MS; Douglas Pedersen, PhD, John Callaghan, MD. Impingement and Dislocation in Total Hip Arthroplasty: Mechanisms and Consequences. KappaDelta/OREF Clinical Research Award Paper. Combined 2012 Annual Meetings of the Orthopaedic Research Society and the American Academy of Orthopaedic Surgeons, San Francisco, CA. February 4-11, 2012. 393. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Balancing Competing Considerations for Optimal Orientation in 36-mm Metal-on-Metal Total Hips. The 2012 American Academy of Orthopaedic Surgeons (AAOS) Annual Meeting. February 7-11, 2012, San Francisco, California. Podium Presentation. 394. Teusink, Matthew J; Callaghan, Katharine A.; Klocke, Noelle F; Pedersen, Douglas R; Johnston, Richard C; Callaghan, John J. Femoral Remodeling Around Well-Fixed Cemented Charnley Total Hip Arthroplasty: A Minimum Twenty Year Follow-Up Study. AAOS Annual Meeting, San Diego, California. February 15-18, 2011. Poster 395. Takenaga RK, Bedard NA, Liu SS, Klaassen AL, Pedersen DR, Callaghan JJ. Cementless Total Hip Arthroplasty in Patients Age 50 and Under at Minimum 10 year Follow-Up: What Can Be Learned Concerning Durability of the Construct? Annual Meeting of the Mid-America Orthopaedic Society, Bonita Springs, FA. April 18-22, 2012. 2012 E.W. Johnson, Jr. MD Physician in Training Award. 396. Takenaga RK, Bedard NA, Liu SS, Klaassen AL, Pedersen DR, Callaghan JJ. Do We Need Pedometer Data to Differentiate Long-Term Function Following Total Hip Replacement? Annual Meeting of the Mid-America Orthopaedic Society, Bonita Springs, FA. April 18-22, 2012. 397. Teusink MJ, Callaghan K, Klocke N, Pedersen DR, Johnston RC, Callaghan JJ. Femoral Remodeling Around Well-Fixed Cemented Charnley Total Hip Arthroplasty: A Minimum 20-year Follow-Up Study. Annual Meeting of the Mid-America Orthopaedic Society, Bonita Springs, FA. April 18-22, 2012. 119 College of Medicine Curriculum Vitae Douglas Ray Pedersen 398. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Dislocation Risk in Morbidly Obese Total Hip Patients. 30th Annual Meeting of Mid-America Orthopaedic Association. April 18-22, 2012. Bonita Springs, Florida. 399. Pedersen DR. Acute Articular Cartilage Changes Following ACL injury: The T1 Perspective. The ABC Fellows program, UI Sports Medicine, June 9, 2012. 400. Pedersen DR, Martin JA, Klocke NF, Thedens DR, Williams GL, Amendola A. Biopsies and Imaging at ACL Reconstruction. Combined Osteoarthritis Initiative Imaging/ OARSI Biomarkers workshop, July 12-14, 2012, Hilton Head, SC. 401. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Expedited computational analysis of fracture of ceramic THA liners: Obesity and stripe wear considerations. The 2012 American Society of Biomechanics Annual Meeting. August 17th, 2012, Gainesville, Florida. Podium presentation: Computational Modeling. 402. Elkins JM, Pedersen DR, Callaghan JJ, Brown TD. Biomechanical principles of failure in total hip arthroplasty. The ASB Young Scientist Award Presentation. The 2012 American Society of Biomechanics Annual Meeting. August 17th, 2012, Gainesville, Florida. 403. Callaghan JJ, Takenaga RK, Bedard NA, Pedersen DR. Long Term Follow-Up Of Cementless THA For The Treatment Of Osteonecrosis: Have We Improved Compared To Cemented THA? Closed Meeting of The Hip Society, September 13-15, 2012, Mayo Clinics, Rochester, MN. 404. Johnston RC, Teusink MJ, Pedersen DR, Callaghan JJ. Femoral Remodeling Around WellFixed Cemented Charnley Total Hip Arthroplasty: A Minimum Twenty Year Follow-Up Study. Closed Meeting of The Hip Society, September 13-15, 2012, Mayo Clinics, Rochester, MN. 405. Pedersen DR. Components of Finite Element Modeling of Joint Construct Stability. Keynote Speaker: 14th Conference of Human Biomechanics at Castle Hotel Třešť November 5-7, 2012. Czech Society of Biomechanics and Institute of Physiology, Academy of Sciences of the Czech Republic. 406. Takenaga R, Callaghan J, Bedard N, Liu S, Klaassen A, Pedersen DR. Do we need pedometer data to differentiate long-term function following total hip replacement? 59th Annual Meeting of the Orthopaedic Research Society, Jan 26-29, 2013. San Antonio, TX. 407. Pedersen DR, Martin JA, Thedens DR, Klocke NF, Roberts NH, Goetz J, Amendola A. Imaging biopsy composition at ACL reconstruction. 59th Annual Meeting of the Orthopaedic Research Society, Jan 26-29, 2013. San Antonio, TX. 120 College of Medicine Curriculum Vitae Douglas Ray Pedersen 408. Thedens DR, Johnson CP, Martin JA, Baer TE, Magnotta VA, Pedersen DR. Image quality considerations for accurate quantitative T1ρ Magnetic Resonance Imaging. OARSI World Congress on Osteoarthritis, Apr 18-21, 2013. Philadelphia, PA. 409. Bedard N, Callaghan J, Stefl M, Willman T, Liu S, Gao Y, Pedersen D, Goetz D. Fixation and wear with contemporary components and cross-linked polyethylene at 10-years. 60th Annual Meeting of the Orthopaedic Research Society, Mar 15-18, 2014. New Orleans, LA. 410. Callaghan J, Greiner J, Bedard N, Liu S, Gao Y, Pedersen D, Goetz D. Fixation and wear with contemporary acetabular components and cross-linked polyethylene at 10-years in patients age 50 and under. 60th Annual Meeting of the Orthopaedic Research Society, Mar 15-18, 2014. New Orleans, LA. 411. Pedersen DR, Nguyen M, Thedens DR, Amendola A. Ankle distraction as a treatment for end stage osteoarthritis: Follow-up at 10 years. OARSI World Congress on Osteoarthritis, Apr 24-27, 2014, Paris, France. IV. SERVICE Professional Affiliations: American Society of Mechanical Engineers (1994) American Society of Biomechanics (1985) Iowa Academy of Science (1980) Orthopaedic Research Society (1986) The Hip Society (1999) Information Technology Committee, Orthopaedic Research Society (2002–2004) Osteoarthritis Research Society International (2008) 121
