Question

patient history and examination reveal pain in the lower half of the si joint, a right short leg and more prominent psis on the right. although motion palpation is always necessary, your initial clinical impression based on your knowledge of lumbopelvic kinematics is that this patient may have a(n) _______.
○ l-pi ilium or a l-sb-ai
○ r-pi ilium or a l-as ilium
○ r-as ilium or a r-sb-ps
○ r-as ilium or a l-pi ilium

Explanation:

A posteriorly rotated (PI) ilium on the right (R-PI) causes the right PSIS to be more prominent and the right leg to appear short, with pain in the lower SI joint. A left anteriorly rotated (AS) ilium (L-AS) creates a relative short right leg and right PSIS prominence by shifting pelvic mechanics, matching the patient's presentation.

Answer:

R-PI Ilium or a L-AS Ilium