Abnormal shoulder physiology Positive modified dynamic labral shear test 2025-04-26T13:13:44Z This test is frequently positive with labrum tear of the shoulder. Sensation of a pain with or without clicking or clunking sensation with the following test. Flex patients elbow to 90 degrees and abduct the arm 120 degrees while maximally externally rotating the arm, then examiner lowers the arm to 60 degrees of abduction. A positive test occurs with pain and/or a painful click along the posterior joint line between 120 degrees and 90 degrees of abduction.