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  • Title: [Radiolunate arthrodesis of the rheumatoid wrist - mid- and long-term results].
    Author: Schill S, Lühr T, Thabe H.
    Journal: Z Rheumatol; 2002 Oct; 61(5):551-9. PubMed ID: 12399883.
    Abstract:
    Late Synovectomy of the rheumatoid wrist combined with ulna head resection and dorsal wrist stabilization will not prevent carpal instability and dislocation. Depending on the radiological destruction pattern and the natural course of the wrist according to Simmen, dorsal wrist synovectomy is combined with soft-tissue or osseus stabilization procedures.This article describes the mid- and long-term results of radio-lunate arthrodesis in patients with rheumatoid arthritis. We present a retrospective study of 69 radiolunate arthrodesis performed from 1988 to 1994. Fifty patients with 57 wrists were available for clinical and radiological follow-up. All patients were suffering from rheumatoid arthritis (dominating female). The average length of R.A. illness was 9.6 years. The mean age at operation was 54.4 years. Postoperative results were reviewed with the Clayton score. The radiographic analysis included measurement of the carpal height index and ulnar translation of the carpus. The follow-up period ranged from 4 to 10.8 years (average: 7 years). The postoperative Clayton score averaged 74.2 points, representing 70% good or excellent results. Twelve wrists achieved satisfactory results and five were judged poor. The most benefit was achieved in pain relief and restoration of wrist function and extensor strength. Complete pain relief was achieved in 36 wrists, while 16 reported slight pain from loads. Five patients still complained about pain with daily wrist activity. We noticed a moderate decrease for extension-flexion (-39 degrees ) and for combined ulnar-radial deviation (-10 degrees ). The radiographic analysis proved stabilization of ulnar translocation in most cases. We routinely noticed a moderate radiographic progression according to the Larsen classification (+0.7) with reduction of the carpal height ratio. In conclusion radioulnate arthrodesis proved satisfactory pain relief and maintenance of functional wrist motion. Despite radiographic deterioration, partial wrist arthrodesis restrains ulnar translocation, while stabilization of the rheumatoid wrist is achieved.
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