Neglected Scaphocapitate Syndrome.

Background  Scaphocapitate syndrome is a rare injury where the proximal pole of the capitate rotates 90 to 180 degrees. The proximal pole of the capitate, thought to receive its vascular supply retrograde, is rendered avascular in such cases. However, recent evidence of low rates of avascular necrosis in displaced capitate fractures, and new vascular studies of the capitate, challenge this paradigm. Case Description  We report a case of a missed and neglected scaphocapitate syndrome with more than 30 years follow-up. While the patient experienced midcarpal arthritis, the injury had not resulted in capitate proximal pole avascular necrosis as per T1 magnetic resonance imaging studies. Literature Review  Missed and chronic cases of scaphocapitate syndrome were reported previously. Successful outcomes were achieved with anatomical reduction in cases without midcarpal arthritis. Salvage procedures or arthroplasty procedures are recommended with the presence of midcarpal arthritis. However, there are no reports of a neglected case with more than 30 years follow-up with preserved vascularity of the proximal pole of the capitate. Clinical Relevance  This case illustrates that vascularity of the proximal pole of the capitate can be preserved even in longstanding displaced fractures.