Ulnar-sided wrist pain in athletes.

A previously unpublished report of seven professional athletes who were treated for ulnar-sided wrist pain is presented in this article. This report is followed by an introduction to the anatomy, examination, and imaging of the ulnar side of the wrist. Specific sources of ulnar-sided wrist pain, including triangulofibrocartilage complex tears, lunotriquetral instability, distal radioulnar joint pathology, extensor carpi ulnaris subluxation, calcific flexor carpi ulnaris tendinitis, and pisotriquetral arthritis are presented.