Medial collateral ligament injury

A calcification that develops adjacent to the adductor tubercle. This complication results from a non-healing collateral ligament injury (usually >6 weeks old). Pellegrini-Stieda's disease will be visible on anteroposterior x-rays.

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The incidence of knee osteoarthritis after isolated MCL injuries is quite low. There is a higher incidence after multi-ligament injuries and chronic MCL injury. [37] [38]

The likelihood of developing stiffness in the knee joint after acute injury is much higher if no physiotherapy is employed. ROM exercises dramatically reduce the incidence.