Finger Collateral Ligament Stress Test
Ulnar and radial collateral ligaments can be tested on every injured finger. Ulnar collateral ligament stability can be tested at 0 and 30 degrees of flexion by apply a valgus force to the finger. Radial collateral ligament stability can also be tested at 0 and 30 degrees of flexion by apply a varus force to the finger. Laxity indicates a partial or complete ligament tear.