Acetabulum, Inlet and Outlet

Question 1

Acetabulum - AP Oblique - modified Judet Method Projection - External

Answer 1

External rotation:
45 RPO to show right side
45 LPO to show left side
CR: perpendicular
CP: 2” distal, 2” medial to ASIS

Question 2

Acetabulum - AP Oblique - modified Judet Method Evaluation Criteria - External

Answer 2

Ilioischial column
anterior rim of acetabulum
Both of these are demonstrated for the side closest to the table
should be able to see ilioischial line, anterior acetabular wall, roof of acetabulum and iliac crest

Question 3

Acetabulum - AP Oblique - modified Judet Method Projection - Internal

Answer 3

Internal Rotation:
45 RPO to show left
45 LPO to show right
CR: perpendicular
CP: 2” to ASIS

Question 4

Acetabulum - AP Oblique - modified Judet Method Evaluation Criteria - Internal

Answer 4

Iliopubic Column
posterior rim of acetabulum
both of these are demonstrated for the side farthest from the table
should demonstrate iliopectineal line, posterior acetabular wall, acetabular roof and obturator foramen

Question 5

Acetabulum - Bilateral Județ Method projection

Answer 5

IR: crosswise
CP: 2” distal to ASIS at midline of oblique pelvis
Do both obliques for both sides

Question 6

Pelvis - AP Axial Outlet - Taylor Method Projection

Answer 6

Patient supine - can use a small sponge under knees
CR: Cephalad
Males - 20-35
Females - 30-45
Practical: 30
CP: 1-2” distal to pubic symphysis

Question 7

Pelvis - AP Axial Outlet - Taylor Method Evaluation Criteria

Answer 7

Pubis and ischial bones magnified
Superior and inferior rami without foreshortening
pubic bones superimposed over sacrum and coccyx
symmetry

Question 8

Pelvis - AP Axial Inlet - Bridgeman Method Projection

Answer 8

IR: crosswise
Patient supine - can use a small sponge under their knees
CR: 40 caudad
CP: level of ASIS at midline

Question 9

Pelvis - AP Axial Inlet - Bridgeman Method Evaluation Criteria

Answer 9

Axial projection of entire pelvic ring
pubic and ischial rami superimposed
symmetry