Ben Bedford1, S Steven Yang. 1. Department of Orthopedic Surgery, Division of Hand and Upper Extremity Surgery, Lenox Hill Hospital, 130 East 77th Street, New York, NY 10021, USA.
Abstract
BACKGROUND: Scaphoid excision and four-corner fusion is commonly performed to reconstruct advanced scapholunate collapse and scaphoid nonunion with collapse. Metallic plates were introduced for achieving fixation of the four carpal bones. Although the developer reported high rates of fusion, several other early reports of circular plate fixation suggest higher complication rates and inferior outcomes compared with traditional fixation techniques. QUESTIONS/PURPOSES: To clarify the controversy in the literature we determined the fusion rates, complications, and functional outcomes of patients having circular plate fixation for four-corner fusion. METHODS: We retrospectively reviewed 15 patients treated for radioscaphoid arthritis with four-corner fusion using circular plate fixation. The minimum followup was 11 months (mean, 22 months; range, 11-39 months). RESULTS: Radiographic union was achieved by all 15 patients. There was only one postoperative complication. ROM was 71% and grip strength was 78% of the opposite normal side. CONCLUSIONS: Our results compare favorably with those using traditional fixation techniques. ROM measurements seem superior to those reported in the literature. LEVEL OF EVIDENCE: Level IV, therapeutic study. See Guidelines for Authors for a complete description of levels of evidence.
BACKGROUND: Scaphoid excision and four-corner fusion is commonly performed to reconstruct advanced scapholunate collapse and scaphoid nonunion with collapse. Metallic plates were introduced for achieving fixation of the four carpal bones. Although the developer reported high rates of fusion, several other early reports of circular plate fixation suggest higher complication rates and inferior outcomes compared with traditional fixation techniques. QUESTIONS/PURPOSES: To clarify the controversy in the literature we determined the fusion rates, complications, and functional outcomes of patients having circular plate fixation for four-corner fusion. METHODS: We retrospectively reviewed 15 patients treated for radioscaphoid arthritis with four-corner fusion using circular plate fixation. The minimum followup was 11 months (mean, 22 months; range, 11-39 months). RESULTS: Radiographic union was achieved by all 15 patients. There was only one postoperative complication. ROM was 71% and grip strength was 78% of the opposite normal side. CONCLUSIONS: Our results compare favorably with those using traditional fixation techniques. ROM measurements seem superior to those reported in the literature. LEVEL OF EVIDENCE: Level IV, therapeutic study. See Guidelines for Authors for a complete description of levels of evidence.
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