Madelung's deformity was first described in 1878. It is characterised by a typical deformity of the carpus and not only causes pain but also impedes mobility and aesthetic appearance. Surgical correction can be effected during adolescence, the most frequently employed technique being conical osteotomy. We present a novel technique of lengthening and aligning the distal radial extremity using Ilizarov's technique. Five carpal joints were operated on in three 13-year old girls. An aesthetic effect was obvious in all the cases. Mobility improved by 30 degrees in the direction of the extension and pain always subsided directly after surgery.