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Sporting injuries to the knee
| Origin | Symptoms | Cause |
|---|---|---|
| Twisting during football | Sudden pain and swelling | Haemarthrosis due to torn cruciate ligament or major meniscal detachment |
| Slowly developing effusion | Smaller meniscal tear | |
| Valgus strain | Medial pain and tenderness, no effusion | Torn medial collateral ligament |
