O'Brien's Test - Labral Tear To perform O'Brien's Test point the thumb down and flex the shoulder to 90 degrees. Adduct the arm across midline, provide resistance against further shoulder flexion and evaluate for pain. Repeat with the thumb pointing up and again evaluate for pain. If pain was present with the thumb down but relieved with the thumb up, it is considered a positive test, suspicious for a labral tear. Video via @open_michigan #OBriens #Test #Labral #Labrum #Tear #Shoulder #PhysicalExam #clinical #video #sports #msk #orthopedics
