An Intraarticular Approach to Correction of the Bifid Thumb

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Surgery of the bifid thumb may leave significant residual deformity. A technique is presented in which the nondominant component is amputated, while its collateral ligament and an attached epiphyseal segment are preserved in continuity. These are relocated accurately on the dominant part. Intraarticular reshaping of the proximal bone is also performed. We report 2 cases in which this method was used, with three- and six-year follow-up. Adequate skeletal correction and stability have been achieved, no disturbance of growth has been noted, and function is satisfactory.

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