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