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SOMI Ch 7 Part 1

Pelvis and Hips

How many and what are the names of the bones that make up the pelvis? 4 total, 2 hip or innominate bones, 1 sacrum, and 1 coccyx
What are the 3 parts of the hip bone? ilium, pubis, ischium
What are the two major positioning landmarks on the ilium? iliac crest and ASIS
Which pelvis has a pubic arch greater than 90 degrees? Female pelvis
Which pelvis is more oval or heart shaped? male pelvis
True or false: You must rotate both the feet and entire lower limb to get a true AP pelvis. True
Your lower limbs and feet should be internally rotated how many degrees for an AP pelvis? 15-20 degrees
Where is the CR directed in a pelvis radiograph? midway between a point 2 inches below the ASIS
Where is the CR directed for a bilateral frog-leg projection of the pelvis? at level of femoral head s, with top of IR approximately at the level of the iliac crest
How much are both of the femora abducted from vertical? 40-45 degrees from vertical (both the same amount)
What is the kVp range for the pelvis on a digital system? 85 kVp plus or minus 5
How much should the affected leg be rotated internally for an AP unilateral hip? 15-20 degrees
Where is the CR positioning for and AP unilateral hip? perpendicular to femoral neck which is about 1 to 2 inches medial and 3 to 4 inches distal to the ASIS
What is the projection name for the unilateral fro-leg projection? modified Cleaves method
How much do you abduct the leg for a modified Cleaves method? 45 degrees from vertical
Where is the CR directed for the modified Cleaves method? perpendicular to the IR directed to the midfemoral neck
What is the name for the axiolateral inferosuperior projection of the hip? Danelius-Miller method
Where is the CR centered on a Danelius-Miller method? perpendicular to IR and centered to the femoral neck
What is the name of the modified axiolateral projection? Clements-Nakayama method
True or False: Leg should be rotated for a Clements-Nakayama Method. False. It should be in the neutral (anatomic) position
How should the CR be angled for a Clements-Nakayama method? Angle CR mediolaterally to be perpendicular and centered to the femoral neck and angled posteriorly 15 to 20 degrees from horizontal
Created by: xraydude