Types & Severity

The medial collateral ligament (MCL) stabilizes the knee’s inner side, preventing excessive inward bending. Injuries are graded: Grade I (mild sprain, microtears, minimal instability), Grade II (partial tear, moderate pain/swelling, noticeable instability), and Grade III (complete rupture, severe instability, difficulty bearing weight). MCL tears can involve superficial (most common) or deep layers (linked to meniscus). Treatment ranges from rest/brace (Grades I-II) to surgery (Grade III with multiligament damage). Associated injuries (e.g., ACL/meniscus) influence severity. Early rehab restores function, while chronic instability risks arthritis.