Toe component excision in postaxial polydactyly of the foot.

Background: Polydactyly of the fifth toe is the most common congenital malformation of the forefoot, and no consensus has been reached as to which toe component should be excised or by which surgical technique. The purpose of this study was to evaluate the results of the operative treatment of postaxial polydactyly and to offer treatment guidelines.

Method: We retrospectively reviewed the details of 27 patients with postaxial polydactyly (36 feet) treated from September 2004 to March 2010. To select the dominant toe of postaxial polydactyly, we evaluated the morphological and radiological configurations. To excise the medial toe, we treated the polydactyly by dorsal rectangular flap and a full-thickness inguinal skin graft. To excise the lateral toe, we treated the polydactyly by racket-shape incision. Patient satisfaction indices were evaluated on the basis of responses to the PSQ-10 patient satisfaction questionnaire and clinical outcomes.

Result: Overall surgical outcomes were satisfactory with the exception of 2 cases of skin graft problems. Eighteen of the 36 reconstructed toes were smaller than the normal toes, but valgus deformity was observed in only 3 cases.

Conclusion: The described medial toe excision technique and the devised toe selection algorithm were able to satisfy functional and cosmetic requirements.