Differential growth of the ulna and radius leading to a malalignment between the two bones. It is associated with activities, commonly performed by young gymnasts whose bodies are still growing, which repeatedly place large compression loads on the wrist, injuring the growth plate of the distal radius. Because of the differential growth of the bones in the forearm, the load on the ulna and triquetrum (one of the carpal bones in the wrist) is increased. This compresses the thin, relatively unstable triangular fibrocartilaginous complex between the two bones, causing pain. The repetitive stress may also tear the fibrocartilaginous complex. Preventative treatment consists of young gymnasts (and other young athletes) avoiding weight-bearing when wrist pain occurs. If ulnar deviation occurs and pain persists after prolonged rest, surgical resectioning may be required.
Subjects: Sports and Exercise Medicine.