YERGASON'S TEST FOR SLAP LESIONS Primarily designed to test for the integrity of the transverse humeral ligament, this test is now more commonly used to detect SLAP lesions. While this test has the highest specificity in the literature amongst all SLAP tests with 95%, the low sensitivity of this test (12%) minimizes its clinical value. A positive test therefore increases the odds for a SLAP lesion by only 2.49 and a negative test basically does not alter the post-test probability for the presenc