joint injury

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Physical damage (such as a sprain, dislocation, or stiffness) to a joint. Sometimes an injury may result in loose bodies, called joint mice, occurring in a joint. These can cause locking and may require surgery. Joint injuries, unlike many muscle injuries, may require absolute rest and immobilization (fixation of the joint to prevent movement). In such cases, any damaged ligaments are kept unstressed while the joint is moved passively by someone else to keep the surrounding muscles fit.