We present our experience with correction of Madelung’s deformity by the Ilizarov technique. Seven patients (eight deformities) were treated by osteotomy of the radius with subsequent lengthening and angular correction. They were reviewed at a mean of 30 months (1.5 to 5.5 years). At the time of operation their mean age was 19 years (9 to 44). At follow-up all were free from pain and supination had improved by a mean of 34° and pronation by 9°. Flexion had increased in most cases with a median increase of 15°, but only one patient gained further extension. Radial and ulnar deviation were increased by a mean of 6° and 9°, respectively.