Background
MedlinePlus Medical Encyclopedia: Anterior cruciate ligament (ACL) injury
National Institutes of Health
ACL injuries are often associated with other injuries. The classic example is when the ACL is torn at the same time as both the MCL and the medial meniscus (one of the shock-absorbing cartilages in the knee). This type of injury often occurs in football players and skiers.
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Your Orthopaedic Connection: Rotator Cuff Tears
orthoinfo.aaos.org
The rotator cuff is the network of four muscles and several tendons that form a covering around the top of the upper arm bone (humerus). These muscles form a cover around the head of the humerus. The rotator cuff holds the humerus in place in the shoulder joint and enables the arm to rotate.
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Tommy John surgery - Wikipedia, the free encyclopedia
Wikipedia
Tommy John surgery, known by doctors as ulnar collateral ligament reconstruction (or UCL), is a surgical procedure in which a ligament in the medial elbow is replaced with a tendon from elsewhere in the body (often from the forearm, hamstring, knee, or foot of the patient).
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sprain
The Oxford Pocket Dictionary of Current English
sprain / sprān / • v. [ tr. ] wrench or twist the ligaments of (an ankle, wrist, or other joint) violently so as to cause ...
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