Tommy John surgery

noun

Tom·​my John surgery ˈtä-mē-ˈjän- 

plural Tommy John surgeries

: a surgical procedure in which a torn ulnar collateral ligament of the elbow is replaced with a tendon graft typically obtained from a superficial muscle of the forearm : ulnar collateral ligament reconstruction

Dr. Timothy Kremchek, the medical director for the Cincinnati Reds, specializes in an elbow-ligament reconstruction procedure commonly known as Tommy John surgery, named for the Los Angeles Dodgers pitcher who first underwent it, in 1974.

—Sara Corbett

But as an outfielder he hurt his throwing arm and had to have Tommy John surgery before the year was out.

—Kelli Anderson

Examples of Tommy John surgery in a Sentence

Recent Examples on the Web

Two years after Tommy John surgery on his right elbow, Aidan Martinez returned to the mound for Birmingham High on Monday in the closer’s role and responded with three strikeouts and three walks and no hits in 1 1/3 innings in the Patriots’ 7-4 win over Ventura in the Easton tournament. —Eric Sondheimer, Los Angeles Times, 24 Feb. 2026

Watching Alcantara’s starts after a comeback from Tommy John surgery in the first half of the 2025 season was frustrating. —Al Melchior, New York Times, 24 Feb. 2026

That carries a significantly shorter rehabilitation timeline than a traditional Tommy John surgery, and because of that, the Rangers project a five-to-six month recovery for their 19-year-old shortstop. —Shawn McFarland, Dallas Morning News, 24 Feb. 2026

The Twins announced Friday that Pablo López will undergo season-ending Tommy John surgery Wednesday. —Betsy Helfand, Twin Cities, 21 Feb. 2026

Word History

Etymology

after Tommy John (Thomas Edward John, Jr. born 1943), U.S. baseball player who underwent the surgery in 1974

First Known Use

1984, in the meaning defined above

Rhymes for Tommy John surgery

• radiosurgery
• cryosurgery
• microsurgery
• neurosurgery
• psychosurgery
• perjury

Medical Definition

Tommy John surgery

noun

Tom·​my John surgery ˈtäm-ē-ˈjän- 

: ulnar collateral ligament reconstruction