Pelvis

1
Chapter 8

• Pelvis

2
Pelvis

• Connects lower extremities to the axial skeleton
• Consists of
• ________________
• ________________
• ________________
• Pelvic girdle
• ________________

3
Hip Bones

• ___________
• __________
• _________
• __________ The area of fusion for the 3 bones.

4
Ilium

• ________
• Large winged area
• _____________
• Inferior to the Ala. Includes superior acetabulum
  
• ______________
• ASIS, AIIS, PSIS, PIIS.

5
Ischium

• Inferioposterior to acetabulum.
• ___________
• Posterior acetabulum to ischial tuberosity
• ___________
• Anterior portion off of ischial tuberosity

6
Ischium

• ________________
• Rounded, rough area at the border of lower body
  and Ramus
• ________________
• Posterior bony protrusion off acetabulum
• ___________________________
• Depression superior and inferior to ischial
  spine

7
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

8
True and False Pelvis

• ____________
• Area surrounded by bone
• Inferior to pelvic brim
• Birth Canal
• Inlet and Outlet

• _____________
• Area formed by Alae
• Superior to pelvic brim

9
Male vs. Female Pelvis

• ___________
• __________
• Deeper
• Less Flared
• Lesser pubic arch
• Narrow inlet
• Oval Obturator Foramen

• ___________
• ________
• More Flared
• Greater Pubic arch
• Larger inlet
• Narrow Obturator Foramen

10
Joints of the Pelvis

• ________________
• Amphiarthrodial Synovial, Sacrum to pelvis
• ________________
• Amphiarthrodial cartilaginous. Rt and Lt pubic
  bones
• ________________
• Synarthrodial cartilaginous. 3 fused hip bones
• ________________
• Diarthrodial Synovial Spheroid.

11
Imaging the Pelvis

• Routine
• AP
• 14 x 17 XW
• 40 SID
• 75 kVp

12
AP Pelvis

• Pt Supine
• ___________ rotate legs _____________
• Center Midline between ___________________________
  _
• Top of Cassette ____________Crest
• Collimate to skin
• ________________________________

13
Sacroiliac Joint Imaging

• Place patient into _____________
• The joint of interest is _______________
• __________________
• Direct CR ____________to upside ASIS