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  • Title: Chronic Boutonniere Deformities, Supple, or Stiff: A New Surgical Technique With Early Mobilization in 11 Cases.
    Author: Dubois E, Teboul F, Bihel T, Goubier JN.
    Journal: Tech Hand Up Extrem Surg; 2017 Jun; 21(2):37-40. PubMed ID: 28338524.
    Abstract:
    Injuries to the central slip of the extensor mechanism can lead to a Boutonniere deformity with important functional consequences. We report a series of 11 patients treated by lengthening-dorsalizing the lateral bands and tightening the central slip with early mobilization. The average age of the patients was 42 years (14;52). The extension defect of the proximal interphalangeal (PIP) joint was 64 degrees (80;55) and the hyperextension of the distal interphalangeal joint was 10 degrees (15;5). The surgery was performed with peripheral nerve block (sensitive), allowing dynamic adjustment of the tendinous sutures. With a dorsal incision, a tenolysis of the extensor was performed. The central slip was tightened and the lateral bands dorsalized by cross-stitches over the PIP joint. The active flexion/extension was tested, and then lengthening of the lateral bands by "mesh graft" tenotomy was performed over the second phalange. There was no immobilization. The deformity was improved in 10 patients with a total flexion of the finger. The mean lack of extension in the PIP was 8 degrees (0;20) and the active flexion of the distal interphalangeal joint was 80 degrees (70;85). There was 1 failure. The majority of techniques necessitate an immobilization of 3 to 6 weeks. Our procedure uses the elastic properties of the elongation and allows immediate mobilization. The result can be compromised in case of insufficient tendinous surface or if postoperative instructions are not followed.
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