1 00:00:00,000 --> 00:00:03,090 (English captions by Trisha Paul from the University of Michigan) 2 00:00:03,090 --> 00:00:07,009 There are several tests commonly performed to evaluate for ligamentous laxity of the 3 00:00:07,009 --> 00:00:13,920 knee. Medial collateral ligament stability can be tested at zero degrees and thirty degrees 4 00:00:13,920 --> 00:00:16,279 of flexion by applying a valgus force on the knee.