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Tommy John surgery
Tommy John surgery (TJS), known in medical practice as ulnar collateral ligament (UCL) reconstruction, is a surgical graft procedure in which the ulnar collateral ligament in the medial elbow is replaced with a tendon from elsewhere in the body. The procedure is common among collegiate and professional athletes in several sports, most notably baseball.
The procedure was first performed in 1974 by orthopedic surgeon Dr. Frank Jobe, then a Los Angeles Dodgers team physician who served as a special advisor to the team until his death in 2014. It is named after the first baseball player to undergo the surgery, major league pitcher Tommy John, whose record of 288 career victories ranks seventh all time among left-handed pitchers. The initial operation, John's successful post-surgery career, and the relationship between the two men is the subject of a 2013 ESPN ''30 for 30'' documentary.
==Procedure==
The patient's arm is opened up around the elbow. Holes to accommodate a new tendon are drilled in the ulna and humerus bones of the elbow. A harvested tendon, such as the palmaris tendon from the forearm of the same or opposite elbow, the patellar tendon, or a cadeveric tendon, is then woven in a figure-eight pattern through the holes and anchored. The ulnar nerve is usually moved to prevent pain as scar tissue can apply pressure to the nerve.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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