1. Not infrequently supination deformities of the forearm follow the flaccid paralysis of the lower-arm type of brachial palsy at birth or poliomyelitis.
2. Very little has been written with regard to the significance and treatment of these deformities.
3. Persistent supination of the forearm renders ineffective an otherwise useful hand and is cosmetically objectionable.
4. Deformities of this type resist correction by plastic soft-tissue operations only.
5. In children simple osteoclasis of the middle third of the forearm safely corrects the deformity.
6. There is usually a rapid loss of part of the correction. All possible pronation up to 90 degrees should be maintained in plaster from four to six weeks.
7. Gradual partial recurrence of the deformity will take place.
8. Following osteoclasis an increase rather than a diminution of the range of motion is frequently obtained, and this motion is through a more useful arc.
(C) 1940 All Rights Reserved.The Journal of Bone and Joint Surgery, Inc.