Stabilization of the Proximal Ulnar Stump in the Sauvé-Kapandji Procedure by Using the Extensor Carpi Ulnaris Tendon: Long-Term Follow-Up Studies

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Purpose: The Sauvé-Kapandji (S-K) procedure is considered a useful treatment option for distal radioulnar disorders. However, postoperative instability of the proximal ulnar stump and radioulnar convergence may be symptomatic. We modified the Sauvé-Kapandji procedure by stabilizing the proximal ulnar stump with a half-slip of the extensor carpi ulnaris tendon. We previously reported 13 patients with this procedure at an average follow-up of 35 months; the patients had satisfactory clinical results and improved stability of the proximal ulnar stump as shown by x-ray examination. In this paper, we address the question of whether those clinical and radiographic results noted at an average follow-up of 35 months postoperativery are maintained at later follow-up examinations.Methods: We reexamined 12 of the 13 original patients and compared their intial follow-up results with their current results after an average follow-up of 95 months. Results: The results of this series after 95 months were similar to those at 35-months. These overall results suggest that the clinical and radiographic results at 35-month follow-up were maintained at the final follow-up visit.Conclusions: Our results in this paper suggested that the clinical radiographic results at the 35-month follow-up were maintained in the long-term 95-month follow-up despite the finding that the hole in the proximal ulnar stump had broken in three wrists at follow-up.
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