Equinus deformity of the ankle is one of the most commonly associated conditions in cerebral palsy. Operative correction is indicated when the patient has tip-toe or toe-heel gait which persists in spite of an adequate period of conservative managements. Of 28 cerebral palsy patients (41 feet) treated for equinus deformities in our hospital from 1987 to 1991, 25 patients (36 feet) were followed more than one year, and were evaluated on the basis of postoperative gait pattern, calf muscle strength, degree of passive dorsiflexion of the ankle, parental satisfaction. Of 36 feet, 24 (66.6%) feet were improved in gait pattern. Parental satisfaction was high (85%). Postoperative degree of passive dorsiflexion of the ankle averaged 4°. Heel lifting was possible in 14 affected feet, postoperatively.