I occasionally see Tommy John references in baseball stories. Who is Tommy John, and what is "Tommy John surgery"?
Tommy John is a former major-league pitcher, who compiled a 288-231 record from 1963 to 1989. In 1974 while with the Los Angeles Dodgers, John was diagnosed with a career-threatening torn ulnar collateral ligament in his left arm -- his pitching arm. Dr. Frank Jobe extracted a tendon from John's right arm and used it to replace the torn ligament in his left arm, threading the healthy tendon through holes drilled into the bone above and below the elbow. The procedure thereafter became known as "Tommy John surgery."