Meniscus tear

A meniscal tear is an extremely common knee injury. There are two menisci in each knee, crescent-shaped discs of cartilage which provide a cushion and shock absorber between the thigh bone (femur) and shin bone (tibia). The meniscus can tear when the knee is subjected to sudden or forceful twisting or rotating, although the injury can even result from kneeling, lifting heavy weights or squatting low. Up to 95% of meniscus tears are associated with a simultaneous ligament injury, such as an ACL tear.

Depending on the severity of the tear, you may experience pain, swelling, stiffness, as well as the feeling that your knee locks or gives way. 
 A physical exam is used to diagnose a meniscus tear, with MRI offering the best means to confirm diagnosis.
Initial treatment will include rest and avoidance of weight-bearing. In some cases, the doctor may recommend arthroscopic surgery to repair the meniscus. If the tear is associated with a ligament injury, ligament reconstruction may also be necessary.

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