A less than optimal AP oblique sacroiliac joint projection demonstrating the ilium superimposing the inferior sacral ala and lateral sacrum will
A) also demonstrate the lateral sacral ala superimposing the iliac tuberosity.
B) demonstrate an open sacroiliac joint.
C) also demonstrate the superior and inferior sacral alae without iliac superimposition.
D) require decreased pelvic obliquity to obtain optimal positioning.

Question

Quizplus · Accepted Answer

Decreased pelvic obliquity is required to reduce the ilium's superimposition over the inferior sacral ala and lateral sacrum, thus achieving optimal visualization of the sacroiliac joint in an AP oblique projection.

A Less Than Optimal AP Oblique Sacroiliac Joint Projection Demonstrating