Surgical treatment of severe hindfoot valgus by medial displacement osteotomy of the os calcis in children with myelomeningocele.

This is a retrospective review of 27 patients with severe hindfoot valgus who were treated with a medial sliding osteotomy of the os calcis. The group consisted of 38 feet in 27 patients with myelomeningocele, ranging in age from 7 to 17 years. Follow-up averaged >5 years. The amount of hindfoot deformity, problems with brace and shoe wear, and overall patient satisfaction were analyzed. Eighty-two percent of the patients were completely satisfied. Most had complete correction of the hindfoot deformity. There was one superficial pin site infection and no nonunions.