Iatrogenic dorsal bunions in children, observed mostly after operations for post-poliomyelitic paralysis or club foot, have been successfully treated by an operation in which the tendons of the flexor brevis and the abductor and adductor muscles of the hallux are transferred to the neck of the first metatarsal. This is supplemented by removal of the sesamoids, capsulotomy of the metatarsophalangeal joint, and when necessary by arthrodesis or tenodesis of the metatarsophalangeal joint. In seventeen feet treated in this way only one failure, in a patient with arthrogryposis, was recorded.