Sacroiliac joint involvement in ankylosing spondylitis may be elicited by which of the following clinical signs
|A||Bilateral compression of the pelvis|
|C||Both of the above|
|D||None of the above|
Both of the above
a. SI joint involvement in AS can be elicited by special maneuvers to stress the joint.
b. Lateral Compression of the pelvis with both the examiner's hands will elicit pain in the involved joints. Gaenslen's sign: With the patient supine on the edge of the examining couch with knees flexed and with one buttock over the edge.
c. The patient lowers the unsupported leg off the table. This maneuver elicits pain in the SI joints on the same side as the lowered leg because the SI joint is stretched open like the binding of a book.