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The purpose of the study was to determine the long-term results of preaxial polydactyly reconstruction through evaluating strength, range of motion, pain, arthritis, and functional outcomes.

Patients having preaxial polydactyly reconstruction 15 to 60 years ago completed the Disabilities of the Arm, Shoulder, and Hand (DASH) and the Patient-Reported Outcomes Measurement Information System (PROMIS) Upper Extremity (UE) Computer Adaptive Test (CAT). Aggregate scores were compared with those of the general population. Patients completed a clinical evaluation comprising grip strength, pinch strength, side pinch strength, and range of motion. Mean strength and range of motion were compared with the contralateral extremity. Patients had radiographs of the reconstructed thumb to evaluate for arthritis.

Twenty-five patients, comprising 27 surgical reconstructions, completed patient …