Valgus Stress Test for Ulnar (Medial) Collateral Ligament Stability on Elbow Examination Ulnar collateral ligament stability can tested at 0 and 30 degrees by applying a valgus force to the elbow. Laxity indicates partial or complete ligamentous tear. Video via @open_michigan #Valgus #Stress #UCL #Ulnar #Medial #Collateral #Ligament #Stability #elbow #PhysicalExam #clinical #video #sports #msk #orthopedics