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Chapter 7

Chapter 7. Hip and Pelvis. Pelvis. Connects lower extremities to the axial skeleton Consists of ____________ 1 sacrum ____________ _____________ – 2 hip bones only. Hip Bones. _________ Ischium ________ ____________ – The area of fusion for the 3 bones. . Ilium. _______

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Chapter 7

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  1. Chapter 7 Hip and Pelvis

  2. Pelvis • Connects lower extremities to the axial skeleton • Consists of • ____________ • 1 sacrum • ____________ • _____________ – 2 hip bones only

  3. Hip Bones • _________ • Ischium • ________ • ____________ – The area of fusion for the 3 bones.

  4. Ilium • _______ • Large winged area • Body • Inferior to the Ala. Includes superior acetabulum • ____________ • _______, AIIS, PSIS, PIIS.

  5. Ischium • Inferioposterior to acetabulum. • ___________ – Posterior acetabulum to ischial tuberosity • __________ – Anterior portion off of ischial tuberosity

  6. Ischium • Ischial____________ • Rounded, rough area at the border of lower body and Ramus • Ischial____________ – Posterior bony protrusion off acetabulum • Greater/Lesser _____________ – Depression superior and inferior to ischial spine

  7. Pubis • Anterioinferior to acetabulum. • ________ • Anteriorinferioracetabululum to superior ramus • Superior __________ – Anterior medial extensions meeting to form symphysis pubis. • Inferior ___________ – Inferioposterior extension off symphysis pubis to Ischial Ramus • _______________ – Hole formed by ischium and pubis

  8. ___________ Area surrounded by bone _______to pelvic brim Birth Canal Inlet and Outlet ____________ Area formed by Alae ______ to pelvic brim True and False Pelvis

  9. Male Narrower Deeper ___________ ______pubic arch Narrow inlet ______ObturatorForamen Female Wider ___________ ______pubic arch Larger inlet _______ Obturator Foramen Male vs. Female Pelvis

  10. Joints of the Pelvis • Sacroiliac Joint ________ – Amphiarthrodialsynovial, sacrum to pelvis • ____________ Pubis – Amphiarthrodial cartilaginous. Rt and Lt pubic bones • Union of Acetabulum – Synarthrodial cartilaginous. 3 fused hip bones • _____________ – Diarthrodialsynovial spheroid.

  11. Imaging the Pelvis Routine • AP • 14 x 17 XW • 40” SID • 75 kV

  12. AP Pelvis • Pt__________ • Internally rotate legs ___________ • Center Midline between _______ and __________Pubis • Top of Cassette ____________Crest • Collimate to skin • If Trauma do not rotate legs *****

  13. Proximal Femur • __________ – Round process • ___________ – Depression in the center of the head • Neck – Area between shaft and head • Acetabulum • Cavity for head of femur

  14. Proximal Femur • Greater _______________ – Superiolateral prominence • Lesser _______________ – Medioposterior prominence inferior to greater trochanter. • Intertrochanteric Crest – Depression between trochanters

  15. Femur Angle • Not ________ • Angle of positioning importance • Head and neck = ___________angle. • Rotate legs Internally (Pigeon Toe) to get ______________

  16. Fracture Sign • Look at the _________ • For symmetry • If one is _________ and one is _______rotated, possible fracture.

  17. Hip Imaging Routine • AP Pelvis • AP Unilateral Hip • Lateral • Frog Leg • X-table lateral • 40” SID • 75 kV

  18. AP Hip • Patient Supine • Rotate Leg ____________ • CR directed __________to femoral neck • ___medial and ___ distal to _______

  19. Frog leg Lateral • Pt Supine • Flex knee and externally ____________ • A sponge may help • Center to Femoral Neck • Draw ___________between ASIS and Symphysis Pubis and _________ perpendicular to line

  20. X-table Hip • Pt Supine • Do not move __________ • Unaffected Leg ______________. Can put leg on collimator • Use _____________grid parallel to femoral neck • Adjust collimator to be __________ to cassette.

  21. Sacroiliac Joint Imaging • Place patient into ____________Posterior Oblique • The joint of interest is _________ • ______ for left SI joint • Direct CR ____ medial to upside ASIS

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