Abstract
1. Open osteotomy near the tuberosity of the radius to enable correction of fixed supination deformity of the forearm in children is an alternative to Blount's closed osteoclasis of both bones.
2. In five out of six cases with residual obstetrical palsy substantial correction of the deformity was maintained.
3. The cosmetic result was impressive, especially in girls, but an improved function was also observed. If the hand is paralysed, correction of supination facilitates reconstruction.
4. Complications such as angulation, displacement, delayed union and synostosis of the proximal radius and ulna did not affect the final results.
5. With the method described a more or less permanent "blocking" of rotatory movement in the forearm was observed but this did not seem to impair the functional result.
