Pitchers in Major League Baseball throw slower and less frequent fastballs after ulnar collateral ligament (UCL) reconstruction; however, this may have minimal impact on their performance each inning.

Two in 3 Major League Baseball pitchers return to pitch in Major League Baseball after a revision ulnar collateral ligament (UCL) reconstruction. Pitchers throw fewer innings and walk more batters after revision surgery.

Pitchers who undergo ulnar collateral ligament (UCL) reconstruction perform worse after surgery compared to earlier seasons. However, they perform comparably to age-matched controls after surgery.