Le Fort Fractures

advertisement
Sylvia Aparicio, IV
Gillian Lieberman, MD
September 2006
Facial Fractures
Sylvia Aparicio
Harvard Medical School Year IV
Gillian Lieberman, M.D.
Sylvia Aparicio, IV
Gillian Lieberman, MD
Our Patient
• 82 year old male
• Had a mechanical fall with blunt force to
face
• Taken to BIDMC by ambulance
2
Sylvia Aparicio, IV
Gillian Lieberman, MD
Facial Fractures
• Most common mechanism is auto accidents
• 70 % of auto accidents produce some type of
facial injury, although most are limited to soft
tissue
• The face is a target in fights or assaults
• Remainder of facial fractures produced by
falls, sports, industrial accidents and gunshot
wounds
3
Sylvia Aparicio, IV
Gillian Lieberman, MD
Facial Fractures
• Analysis of the fractured face requires
• knowledge of normal anatomy
• common fracture patterns in the face
4
Sylvia Aparicio, IV
Gillian Lieberman, MD
Anatomy-Frontal View
5
http://www.emedicine.com/ent/images/Large/22ent0009-01.jpg
Sylvia Aparicio, IV
Gillian Lieberman, MD
Anatomy-Lateral View
6
http://www.bartleby.com/107/
Sylvia Aparicio, IV
Gillian Lieberman, MD
Imaging Studies
• Plain Film
• universally available
• quickly obtained
• economical
• CT
• more accurate
• 3D reconstruction very useful
• fractures involving multiple planes
• fracture displacement
• assessment of facial symmetry
• assess fractures, soft tissue injuries, and
intracerebral hemorrhage simultaneously
7
Sylvia Aparicio, IV
Gillian Lieberman, MD
Standard Views for
Plain Films
•
•
•
•
Waters view (PA view with cephalad angulation)
Caldwell view (PA view)
lateral view
submentovertex view
• Non-traumatized patient
• should be obtained with the patient erect and all
frontal projections with the central-beam PA
• Patients with facial trauma
• obtained with the patient supine
• cervical spine must be cleared
8
Sylvia Aparicio, IV
Gillian Lieberman, MD
Waters View
PA with cephalad angulation
9
http://anatomy.uams.edu/anatomyhtml/xrays/xra_atlas28.html
http://www.bcm.edu/oto/studs/nose.html
Sylvia Aparicio, IV
Gillian Lieberman, MD
Caldwell View
PA
Petrous pyramid
10
http://anatomy.uams.edu/anatomyhtml/xrays/xra_atlas27.html
http://www.bcm.edu/oto/studs/nose.html
Sylvia Aparicio, IV
Gillian Lieberman, MD
Lateral View
11
http://anatomy.uams.edu/anatomyhtml/xrays/xra_atlas30.html
Sylvia Aparicio, IV
Gillian Lieberman, MD
Submentovertex View
• a-zygomatic arch
• b-maxillary sinus
• c-anterior wall,
maxillary sinus
http://www.uth.tmc.edu/radiology/test/er_primer/face/images/subment02.html
12
http://www.bcm.edu/oto/studs/nose.html
Sylvia Aparicio, IV
Gillian Lieberman, MD
Facial CT Views
Coronal View
Axial View
13
http://uuhsc.utah.edu/rad/protocol/fbones.htm
Sylvia Aparicio, IV
Gillian Lieberman, MD
Key Points for Assessing
Fractures
• Look at orbits carefully
• Involved in 60 - 70 % of all facial fractures
• Look for most common fracture patterns
• Bilateral symmetry can be very helpful.
• Normal radiopacities are usually bilateral.
Abnormal ones are usually unilateral.
• Look for aberrant air
14
Sylvia Aparicio, IV
Gillian Lieberman, MD
Zygomaticomaxillary complex
(tripod fracture)
15
www.emedicine.com/ent/topic166.htm
http://www.rad.washington.edu/mskbook/facialfx.html
Sylvia Aparicio, IV
Gillian Lieberman, MD
Orbital Floor Fractures
• "blowout" fracture
• usual mechanism is a
blow to the eye
• common clinical signs
• enophthalmos
• diplopia
16
http://www.rad.washington.edu/mskbook/facialfx.html
http://www.nature.com/eye/journal/v20/n1/fig_tab/6701801f2.html#figure-title
Sylvia Aparicio, IV
Gillian Lieberman, MD
Le Fort Fractures
17
http://www.rad.washington.edu/mskbook/facialfx.html
Sylvia Aparicio, IV
Gillian Lieberman, MD
Our Patient
Coronal CT
Fracture at naso-frontal suture
Bilateral fractures at
zygomatico-maxillary sutures
Bilateral Le Fort II
18
Courtesy of Dr. Handwerker-BIDMC
Sylvia Aparicio, IV
Gillian Lieberman, MD
Our Patient
Axial CT, Bone Window
Fracture at naso-frontal suture
19
Axial view through orbits
Courtesy of Dr. Handwerker-BIDMC
Sylvia Aparicio, IV
Gillian Lieberman, MD
Our Patient
Axial CT, Bone Window
Fracture of anterior maxillary walls
Aberrant air in subcutaneous
tissues
Fracture of posterior
maxillary walls
Courtesy of
Dr. Handwerker-BIDMC
Axial view through maxillary sinuses
20
Sylvia Aparicio, IV
Gillian Lieberman, MD
Our Patient
Axial Views Through Nasal Bones
Comminuted nasal bone fractures
21
Courtesy of Dr. Handwerker-BIDMC
Sylvia Aparicio, IV
Gillian Lieberman, MD
Our Patient
3D Reconstruction
22
Courtesy of Dr. Handwerker-BIDMC
Sylvia Aparicio, IV
Gillian Lieberman, MD
Our Patient
3D Reconstruction
23
Courtesy of Dr. Handwerker-BIDMC
Sylvia Aparicio, IV
Gillian Lieberman, MD
Our Patient
3D Reconstruction
24
Courtesy of Dr. Handwerker-BIDMC
Sylvia Aparicio, IV
Gillian Lieberman, MD
Our Patient
3D Reconstruction
25
Courtesy of Dr. Handwerker-BIDMC
Sylvia Aparicio, IV
Gillian Lieberman, MD
3D Reconstruction
• CT 3D reconstruction can often be used
to plan surgical management
• Can also be used to evaluate facial
skeleton post-surgically
26
Sylvia Aparicio, IV
Gillian Lieberman, MD
Second Patient
• Post-fixation CT with 3D Reconstruction
slides of another patient with a bilateral
Le Fort Type II fracture
27
Sylvia Aparicio, IV
Gillian Lieberman, MD
Second Patient
28
Courtesy of
Dr. Guo - BWH
Sylvia Aparicio, IV
Gillian Lieberman, MD
Second Patient
29
Courtesy of
Dr. Guo - BWH
Sylvia Aparicio, IV
Gillian Lieberman, MD
Second Patient
30
Courtesy of
Dr. Guo - BWH
Sylvia Aparicio, IV
Gillian Lieberman, MD
Second Patient
31
Courtesy of
Dr. Guo - BWH
Sylvia Aparicio, IV
Gillian Lieberman, MD
Second Patient
32
Courtesy of
Dr. Guo - BWH
Sylvia Aparicio, IV
Gillian Lieberman, MD
Second Patient
33
Courtesy of
Dr. Guo - BWH
Sylvia Aparicio, IV
Gillian Lieberman, MD
Second Patient
34
Courtesy of
Dr. Guo - BWH
Sylvia Aparicio, IV
Gillian Lieberman, MD
Second Patient
35
Courtesy of
Dr. Guo - BWH
Sylvia Aparicio, IV
Gillian Lieberman, MD
Second Patient
36
Courtesy of
Dr. Guo - BWH
Sylvia Aparicio, IV
Gillian Lieberman, MD
Second Patient
37
Courtesy of
Dr. Guo - BWH
Sylvia Aparicio, IV
Gillian Lieberman, MD
Second Patient
38
Courtesy of
Dr. Guo - BWH
Sylvia Aparicio, IV
Gillian Lieberman, MD
Second Patient
39
Courtesy of
Dr. Guo - BWH
Sylvia Aparicio, IV
Gillian Lieberman, MD
Second Patient
40
Courtesy of
Dr. Guo - BWH
Sylvia Aparicio, IV
Gillian Lieberman, MD
Summary
• Knowing normal
anatomy and
common fractures is
important
• CT-most common
modality used
• Consider
mechanism
• Look for asymmetry
• Look for cortex
interruption
41
Sylvia Aparicio, IV
Gillian Lieberman, MD
Resources
•
•
•
•
•
•
•
•
•
•
•
Bobby R. Alford Department of Otolaryngology-Head and Neck Surgery. Nose and Paranasal Sinuses 21
May 2006. 12 Sept. 2006 <http://www.bcm.edu/oto/studs/nose.html>.
Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences.
Gross Anatomy 2005. 12 Sept. 2006 <http://anatomy.uams.edu/anatomyhtml/gross.html>.
Gray H. Anatomy of the Human Boday. Gray’s Anatomy. 12 Sept. 2006 <http://www.bartleby.com/107/>.
Harris J and Troetscher T. Emergency Radiology Primer 2000. 12 Sept.2006
<www.uth.tmc.edu/radiology/test/er_primer/face/images/subment02.html>.
Jahan-Parwar B. Facial Bone Anatomy. eMedicine 17 Oct. 2005. 12 Sept. 2006
<http://www.emedicine.com/ent/topic9.htm>.
Mauriello Jr JA, Lee HJ, Nguyen L. CT of Soft Tissue Injury and Orbital Fractures. Radiologic Clinics of
North America 1999; 37: 241-252.
Mullins RJ. The Influence of Imaging on the Trauma Surgeon’s Initial Evaluation of Seriously Injured
Patients. Seminars in Roentgenology 2006; 41: 159-167.
Rhea JT, Rao PM, Novelline RA. Helical CT and Three-Dimensional CT of Facial and Orbital Injury.
Radiologic Clinics of North America 1999; 37: 489-513.
Richardson M. Facial and Mandibular Fractures 24 Jan. 2001. 12 Sept. 2006
<http://www.rad.washington.edu/mskbook/facialfx.html>.
Vose M, Maloof A, and Leatherbarrow B. Orbital floor fracture: an unusual late complication. Eye (2006) 20,
120–122.
Wiggins R. Facial Bones CT Protocol 2002. 12 Sept. 2006 <http://uuhsc.utah.edu/rad/protocol/fbones.htm>.
42
Sylvia Aparicio, IV
Gillian Lieberman, MD
Acknowledgements
•
•
•
•
•
•
•
Atif Zaheer, MD
Jason Handwerker, MD
Andrew Hines-Peralta, MD
Gillian Lieberman, MD
Pamela Lepkowski
Larry Barbaras
Lifei Guo, MD
43
Download