A follow-up study on 20 patients one to 9 years after lateral wedge resection of the calcaneus according to Dwyer is reported. In 18 feet with neurogenic varus deformity of the hind foot, the angle between the axis of the lower leg and the heel was altered from 11.4 degrees +/- 1.4 degrees SD varus to a normal value of 5.9 degrees +/- 0.9 degrees SD valgus. The position of the calcaneal tuberosity was changed from 6.7 degrees +/- 1.1 degree SD varus to 0.1 degree +/- SD varus in 7 congenital club feet. The osteotomy reduced accompanying deformities of pes cavus and pes adductus in the operated children.