Functional outcome after centralization for radius dysplasia

Centralization for radius dysplasia purportedly offers a more normal appearance, provides length to a shortened forearm, and improves upper-extremity function. Limited objective outcome data, however, exist to substantiate its use. To better define functional status after centralization, the Jebsen-Taylor hand test and the Disabilities of the Arm, Shoulder, and Hand questionnaire (DASH) were administered to 21 patients (25 wrists) at an average of 20 years after surgery. Jebsen-Taylor scores, a measure of hand function, were significantly altered with an average total score of 48 seconds compared with an average normal score of 30 seconds (62% increase). The DASH questionnaire, a measure of upper-extremity function, showed only a mild disability of 18%. These long-term follow-up data show that hand function remains markedly abnormal while upper-extremity disability is mild. Improved wrist alignment and increased ulna length did not correlate with improved upper-extremity function.