This is an injury to the ligament on the medial side of the knee. This usually occurs from pressure or trauma from the lateral aspect of the knee, stretching the medial beyond its range of motion.
MCL tear is part of the unhappy triad which also includes damage to the ACL and medial meniscus. This occurs due to trauma to the lateral aspect of the knee and is common in football.
Football trauma can result in damage to the MCL, as patients are often tackled from the outside (laterally).
Skiing accidents can result in damage to the MCL.
This test is done by placing valgus (lateral to medial) stress to the knee while the knee is flexed at 30 degrees and tests the MCL, looking for laxity.
Nonoperative therapy, including a hinged knee sleeve, activity modification, and physical therapy, is typically the standard of care for all types of MCL strains.
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