The knee is an extremely complicated joint, with several structures that can be injured, including the collateral ligaments, the cruciate ligaments and the meniscus. The most common knee injuries involve a sprain, a strain or a tear. Ligament damage is the most common injury seen to the knee, and ligaments are what connect one bone to another within the joint. The most common symptom of a knee injury is pain, swelling and instability, often accompanied by snapping or popping at the time of injury. It is often caused by sporting accidents, but conditions such as osteoarthritis can also be a contributory factor. Whilst initial treatment consists of ice to control the swelling, treatment can vary from rest and physiotherapy through to surgery to repair the damage.
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