Little League elbow
Definition An overuse injury in young boys (less commonly, girls), caused by pitching a baseball, which leads to medial epicondylitis, manifest as apophyseal tenderness with ulnar nerve irritation. If severe, Little League elbow may require surgery with possible lifelong arthralgia, due to injury of the physeal cells under the articular cartilage; permanent damage results from repeated and excessive axial loading, which compresses the cells against the osseous matrix.
Late sequela Osteochondritis dissecans.
Little League pitchers should throw no more than 250 high-velocity pitches per week. The Little League is an international organisation dedicated to the sportsman-like practice of baseball for children under age 12.
Synonym Pitcher’s elbow