Labral tear - O'Brien Test - 1. Position patient's shoulder in 90 degree flexion, elbow extended, and 14 degrees adducted (medial to sagittal plane) 2. Point thumb down 3. Examiner stand behind pateint and applies downward force 4. Repeat with arm supinated (thumb up) #Diagnosis #Ortho #Sports #Labral #Tear #RotatorCuff #Test #OBrien #ALiEM