Abstract
1. Eleven cases of congenital flat foot were studied, five of which are illustrated.
2. Ten of these cases were treated in infancy and followed for at least three years. In two cases the follow-up period was ten years and fifteen years.
3. An essential component of the deformity is equinus of the calcaneus, and treatment consisted of correction of the forefoot deformity by repeated manipulation, followed later by elongation of the calcaneal tendon and capsulotomy of the ankle.
4. The importance of recognising the deformity and beginning treatment in infancy is stressed.