A Case of Olecranon Stress Fracture Caused by Throwing Motion

A 28-year-old man had right elbow pain just as he was throwing his usual fastball from the pitcher’s mound while playing a recreational baseball game. He had tenderness and swelling at the site of the olecranon without a history of trauma, previous elbow pain, instability or degenerative change in his elbow. An olecranon stress fracture was diagnosed caused by an impaction force during the throwing motion. Open reduction and internal xation using tension band wiring was performed. Bone union was achieved and he returned to playing baseball as a pitcher. We report our case along with some discussion of the literature.