Modified Bilhaut-Cloquet Procedure for the Reconstruction of Wassel Type III Radial Polydactyly.

BACKGROUND: The purpose of this research is to study the modified surgical effect of Wassel type III radial polydactyly thumbs of equal or nearly equal size treated. METHODS: The study sample consisted of 12 reconstructed cases of Wassel type III radial polydactyly. The proximal phalanx was unequally combined by the curvature osteotomy and aligned the articular surface, and the distal phalanx was symmetrically combined. A fragment bone was filled in the depression of the distal phalanx to correct nail curvature and prevent seagull deformities. Twelve cases were available for assessment using an evaluation form on the Japanese Society for Surgery of the Hand. RESULTS: An average functional point was 13.75 points (maximum 14 points). The interphalangeal joint motion was reduced, but this joint was stable in all cases. The cosmetic score was averaged 3.6 (maximum 4 points), and most parents were satisfied with the postoperative appearance and functional results. CONCLUSION: Our modification of Bihaut-Cloquet procedure is an effective way to provide a well-functioning thumb for Wassel type III radial polydactyly thumbs. LEVEL OF EVIDENCE: Level IV.