Distal Radius, Distal Radioulnar Joint and Forearm

A New Total Distal Radioulnar Joint Prosthesis: Functional Outcome

Schuurman AH, Teunis T (Univ Med Centre Utrecht, the Netherlands) J Hand Surg 35A:1614-1619, 2010^§

Abstract

Purpose

To present the evolution of design and the short-term functional outcome of our distal radioulnar joint (DRUJ) prosthesis. This total DRUJ prosthesis differs from others in that it consists of 2 parts and attains bony fixation by its hydroxyapatite coating.

Methods

Nineteen patients received a DRUJ prosthesis after a failed Darrach procedure (n = 10), Sauvé-Kapandji procedure (n = 7), trauma (n = 1), or DRUJ synovitis (n = 1). Indications for the placement were decreased grip, decreased forearm motion, and pain due to ulnar impingement syndrome and instability of the distal ulna. Seven prostheses were removed, 5 due to loosening, 1 due to continuing pain, and 1 at the request of the patient. The 5 prostheses that loosened were an intermediate prototype no longer in use. In 12 remaining cases, range of motion, grip strength, and pinch strength were measured, and patients completed the Disabilities of the Arm, Shoulder, and Hand (DASH) questionnaire. Pain was assessed with the visual analog scale (range, 0–10). A paired t-test was performed to assess the significance of the difference between preoperative and postoperative measurements.

Results

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