Chapter 8
Hip and Pelvis
Proximal Femur
• __________
– Round process
• _________
– Depression in the center of the head
• ________
– Area between shaft and head
• ____________
– Cavity for head of femur
Proximal Femur
• _______________
– Superiolateral prominence
• ______________
– Medioposterior prominence inferior to greater
trochanter.
• ________________
– Depression between trochanters
Femur Angle
• Not _________
• Angle of positioning importance
– Head and neck = _______________.
• Rotate legs ________________to get
neck in true AP
Hip Imaging
Routine
• AP Pelvis
• Lateral
– Frog Leg
– X-table lateral
• AP Unilateral Hip
• 40” SID
• 75 kVp
AP Pelvis
• Pt Supine
• _____________________(Pigeon Toe)
• Center Midline between ______and
_______________
• Top of Cassette ____________Crest
• Collimate to skin
• If Trauma __________________*****
Frog leg Lateral
•
•
•
•
Pt Supine
Flex knee and ________________
A sponge may help
Center to Femoral Neck
– Draw imaginary line between ______ and
__________and go inferior
_______perpendicular to line
X-table Hip
• Pt Supine
• Do not move affected Hip
• Unaffected Leg _____________. Can put
leg on collimator
• Use X-table grid parallel to __________
• Adjust collimator to be perpendicular to
cassette.
AP Hip
•
•
•
•
Patient Supine
Rotate Leg ______________
CR directed ___________to femoral neck
__________and _________to ASIS
Pelvis
• Connects _________________to the axial
skeleton
• Consists of
– ___________
– 1 sacrum
– ______________.
• Pelvic girdle
– ______________only
Hip Bones
• _________
• Ischium
• ___________
• Acetabulum – The area of fusion for the 3
bones.
Ilium
• _________
– Large winged area
• ____________
– Inferior to the Ala. Includes superior
acetabulum
• _____________
• ASIS, AIIS, PSIS, PIIS.
Ischium
• Inferioposterior to acetabulum.
• ___________
– Posterior acetabulum to ischial tuberosity
• ____________
– Anterior portion off of ischial tuberosity
Ischium
• ________________
– Rounded, rough area at the border of lower
body and Ramus
• _______________
– Posterior bony protrusion off acetabulum
• ______________ sciatic notch
– Depression superior and inferior to ischial
spine
Pubis
• Anterioinferior to acetabulum.
• ___________
– Anteriorinferior acetabululum to superior ramus
• ______________
– Anterior medial extensions meeting to form
symphysis pubis.
• _____________
– Inferioposterior extension off symphysis pubis to
Ischial Ramus
• _______________
– Hole formed by ischium and pubis
True and False Pelvis
• True (Lesser)
– Area surrounded
_________
– _______ to pelvic
brim
– _______
– Inlet and Outlet
• False (Greater)
– Area formed by
________
– __________ to
pelvic brim
Male vs. Female Pelvis
• Male
– ________
– Deeper
– ______
– Lesser pubic arch
– Narrow inlet
– Oval
________Foramen
• Female
– _______
– More Flared
– Greater ________
– Larger inlet
– Narrow Obturator
Foramen
Joints of the Pelvis
• ______________
– Amphiarthrodial Synovial, Sacrum to pelvis
• _______________
– Amphiarthrodial cartilaginous. Rt and Lt pubic
bones
• Union of Acetabulum
– Synarthrodial cartilaginous. 3 fused hip bones
• Hip Joint
– Diarthrodial Synovial Spheroid.
Imaging the Pelvis
Routine
•
•
•
•
AP
14 x 17 XW
40” SID
75 kVp
AP Pelvis
• Pt Supine
• ___________legs 15° (Pigeon Toe)
• Center Midline between ______ and
_______________
• Top of Cassette 1 to 2” above Crest
• Collimate to skin
• If Trauma do not rotate legs *****
Sacroiliac Joint Imaging
• Place patient into ________________
• The joint of interest is elevated
– _____________SI joint
• Direct CR ___________to upside ASIS