MOVING VALGUS STRESS TEST FOR MEDIAL COLLATERAL LIGAMENT INSUFFICIENCY OF THE ELBOW If your patient is presenting after a trauma of the elbow and with medial elbow pain, one of the first things you want to test (after excluding a fracture) is the integrity of the ligaments. The moving valgus stress test is used to assess the medial collateral ligament at the elbow. According to a small study of O'Driscoll et al. (2017) the Moving Valgus Stress test has a sensitivity of 100% and a specificity of