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How many and what are the names of the bones that make up the pelvis?
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What are the 3 parts of the hip bone?
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SOMI Ch 7 Part 1
Pelvis and Hips
| Question | Answer |
|---|---|
| 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 |
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xraydude
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