Summary
The knee joint is a hinge joint, composed of bones, cartilage, ligaments, tendons, and other tissues.
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Tendons connect the knee bones to the leg muscles that move the knee joint.
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It is most often injured during sports activities, exercising, or as a result of a fall, and can be caused by a variety of injuries, such as sprains, tears, or a fall.
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There are three bones that come together at the knee joint: the shin bone (tibia), the thigh bone (femur), and the kneecap (patella).
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Muscles propel the knee joint back and forth, with a tendon connecting the muscle to the bone.
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The knee is also composed of cartilage, meniscus, and bursa.
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The knee is a modified hinge joint, which permits flexion and extension as well as slight internal and external rotation.
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According to