What is an MCL tear / strain of the knee?
The MCL is a ligament on the medial side of the knee that give stabilization with valgus stress which is the knee bending inwards. There are 3 grades, I-III. Grade I is a mild strain, Grade II a partial tear, and Grade III a complete tear. These injuries most commonly occur with a direct blow to the lateral side of the knee. There is a high association of MCL injuries and ACL injuries.