Table 1.

Criteria for diagnosis and frequently found confirmatory sign in sacroiliac subluxation or pelvic girdle pain

Criteria or sign	Description
Diagnostic criteria
Sacral pain	Pain is usually unilateral and in some cases radiates to the buttock, lower abdomen, anterior medial thigh, groin, or posterior thigh
Pelvic pain	Pain in sacral area is provoked by direct bilateral downward pressure on the anterior superior iliac spine
Asymmetry of the anterior superior iliac spine	Anterior superior iliac spine should be examined with patients in supine position to eliminate the effect of leg length discrepancy, as in sacroiliac subluxation, one iliac spine will be higher than the other
Confirmatory signs
Active straight leg raise test	Passive raising of patients’ leg, with the knee extended and patients in supine position, causes pain, usually at the end range
Positive Patrick’s test	Placing one heel on the opposite knee in the recumbent position and simultaneously rotating the leg outward provokes pain
Tenderness at Baer’s test	A point of acute tenderness, just to side and below the umbilicus on the painful side
	Which is about one-third of the way between the umbilicus and ASIS

ASIS=Anterior superior iliac spine