![]() Athletes will have pain on the inside of the elbow, and frequently notice decreased throwing velocity. Injuries of the UCL can range from minor damage and inflammation to a complete tear of the ligament. The ulnar collateral ligament (UCL) is the most commonly injured ligament in throwers. Athletes will have pain on the inside of the elbow when throwing, and if the tendinitis is severe, they will also experience pain during rest. Repetitive throwing can irritate and inflame the flexor/pronator tendons where they attach to the humerus bone on the inner side of the elbow. Common Throwing Injuries of the Elbow Flexor Tendinitis ![]() Orthopaedic Knowledge Online Journal 2004. Reproduced with permission from Ahmad CS, ElAttrache NS: Elbow valgus instability in throwing athletes. It controls the muscles of the hand and provides sensation to the small and ring fingers. The ulnar nerve crosses the elbow joint right behind the bony prominence on the inner aspect of the elbow. The flexor/pronator muscles of the forearm and wrist begin at the elbow and are also important stabilizers of the elbow during throwing. Several muscles, nerves, and tendons (connective tissues between muscles and bones) cross at the elbow. It runs from the inner side of the humerus to the inner side of the ulna and must withstand extreme stresses as it stabilizes the elbow during overhand throwing. The ligament on the inner part the elbow (closer to the body) is the ulnar collateral ligament. ![]() On the inner and outer sides of the elbow, thick ligaments (collateral ligaments) hold the elbow joint together and prevent dislocation. The hinge part of the joint lets the arm bend and straighten the pivot part lets the lower arm twist and rotate.Īt the upper end of the ulna is the olecranon, the bony point of the elbow that can easily be felt beneath the skin. It is a combination hinge and pivot joint. The elbow joint is where three bones in the arm meet: the upper arm bone (humerus) and the two bones in the forearm (radius and ulna). The bones, major nerves, and ligaments are highlighted. The normal anatomy of the elbow joint shown from the side closest to the body.
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