what is mcl
the medial collateral ligament mcl is located on the inside of the knee ligaments hold bones together the mcl connects the top of the shinbone tibia to the bottom of the thighbone femur ligaments also add stability and strength to a jointinjury to the mcl is often called an mcl sprainligament injuries can either stretch the ligament or tear it mcl injury of the knee is usually caused by a direct blow to the knee this type of injury is common in contact sports and it is usually the result of a hit to the outer knee that stretches the mclnjury to the mcl is often called an mcl sprain ligament injuries can either stretch the ligament or tear it mcl injury of the knee is usually caused by a direct blow to the knee