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Pelvis and Hip (115)
Part 1
| Question | Answer |
|---|---|
| What are the 4 bones of the pelvis? | 2 hip bones (innominate or os coxae) |
| What are the 4 bones of the pelvis? | Sacrum |
| What are the 4 bones of the pelvis? | Coccyx |
| What are the 3 parts of each hip bone? | Ilium |
| What are the 3 parts of each hip bone? | Ischium |
| What are the 3 parts of each hip bone? | Pubis |
| Gender Differences of the Pelvis- Female | • Obtuse pubic angle • Light • Wide • Shallow |
| Gender Differences of the Pelvis- Male | • Acute pubic angle • Heavy • Narrow • Deep |
| What marks the boundary between the greater (false) pelvis and lesser (true) pelvis? | Pelvic Inlet |
| Pelvic Inlet Boundaries | Extends from the sacral promontory to the upper margin of the pubic symphysis |
| Pelvic Outlet Boundaries | Extends from • tip of coccyx to inferior pubic symphysis • tip of coccyx to ischial tuberosity |
| The longitudinal plane of the femur is approximately | 10° from vertical |
| The neck projects superiorly at an angle of approximately | 125° from the long axis of the body |
| The neck projects anteriorly from the body at an angle of approximately | 15 to 20° |
| AP Pelvis Patient Position | Supine MSP centered to midline Equal ASIS-to-table distance on both sides |
| When performing an AP Pelvic X-Ray, the femoral necks must be ______with IR | Parallel |
| How do you get the patients femoral necks to be parallel when performing an AP Pelvis X-Ray? | Medially rotate feet and lower limbs 15 – 20° |
| AP Pelvis CR Placement | Midway between ASIS and pubic symphysis, approximately 1.5 –2 inches above the prominence of the greater trochanter |
| AP Pelvis Image Criteria | Includes the entire pelvis and proximal femora. Lower vertebral column centered to the middle of the radiograph. No rotation of pelvis (Symmetric ilia) |
| What X-Ray is commonly used for assessing non-trauma hip pathology in children? | AP PELVIS – BILATERAL FROG LEG (MODIFIED CLEAVES) |
| Which X-Ray is used for assessment of pelvic trauma for pelvic ring integrity, anterior/posterior displacement or internal/external rotation of the hemipelvis? | AP AXIAL INLET- BRIDGMAN METHOD |
| AP Axial Inlet CR Placement | • Directed 40 degrees caudad • Enters MSP at level of ASIS • IR centered at level of greater trochanters |
| AP Axial Inlet Image Criteria | • Superior and inferior pubic rami are superimposed, closing the obturator foramina • Open Pelvic ring is demonstrated without foreshortening |
| AP Pelvis – Bilateral Frog Leg Patient Position | • Supine MSP centered to midline • Equal ASIS-to-table distance on both sides • Flex the hips and knees, draw the feet up • Abduct the thighs as close to 45° as possible keeping soles of feet together for support |
| What X-Ray allows for assessment of pelvic trauma for vertical displacement, fractures of the pubic rami and sacral detail? | AP Axial Outlet (Taylor Method) |
| AP Axial Outlet CR Placement | Enters MSP 2 inches inferior to the pubic symphysis, use cephalad angle |
| AP Axial Outlet CR angle for men | 20 – 35° cephalad |
| AP Axial Outlet CR angle for women | 30-45° cephalad |
| AP Axial Outlet Image Criteria | • Iliac wings appear elongated • Superior and inferior pubic rami and ischial rami are free from superimposition • Ischial spines are within the obturator foramen |
| In which X-Ray are the Obturator Foramina open and appear elongated? | AP Axial Outlet |
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user-2016295