Thumb CMC Axial Grind Test Testing for osteoarthritis of the thumb at the trapezium metacarpal joint is done by using the axial grind test. The examiner grasps the thumb and places an axial force with grinding. Reproduction of pain is a positive test. Video via @open_michigan #Thumb #CMC #carpometacarpal #Axial #Grind #Test #Hand #PhysicalExam #clinical #video #sports #msk #orthopedics
