Reconstruction of polysyndactyly of the fused fifth toe with the fourth toe.

Polysyndactyly of the fused fifth toe with the fourth toe is a common subtype of postaxial polydactyly. The aim of the study was to present an operative technique for cosmetic improvement and reconstruction of polysyndactyly of the fused fifth toe with the fourth toe. We retrospectively reviewed the details of 22 patients with postaxial polydactyly treated from January 2018 to May 2021. The operation involved medial toe excision and web space reconstruction using a dorsal rectangular flap without skin grafting and simultaneous correction of a valgus deformity by chondroplasty and soft tissue balancing without an osteotomy. The web shape, scar, and aesthetic outcomes were evaluated on the criteria of the D'Arcangelo, Vancouver Scar Scale score, and satisfactory questionnaire, respectively. The patients were followed up for 7-43 months. At the last follow-up, valgus deformity was completely corrected without recurrence. On the basis of the criterion of D'Arcangelo, the height and width of the webs were good in 24 of the feet, fair in four of the feet, and poor in none of the feet. The mean Vancouver Scar Scale score was 1.55. All parents and patients were satisfied with the appearance and function. The described medial toe excision technique and reconstruction of the web space without a skin graft corrected the valgus deformity and were able to satisfy functional and cosmetic requirements.