Isolated Injuries to the Medial Collateral Ligament or MCL often result from a valgus force (a force pushing the knee to the lateral/outer side) stressed across the medial joint line of the knee. Injuries to the Lateral Collateral Ligament or LCL is less common and usually result of a traumatic varus ( a force pushing the knee in the medial/inner side) stressed across the knee.
Knee brace is recommended for patients with MCL/LCL tear. This will help support and stabilize the knee joint. It can also restrict unintended knee motion. See our Back To Sport Knee Braces that can help you recover from MCL/LCL Tear