Progressive upper limb lengthening in children: a report of two cases.

A 10-year-old girl presenting with idiopathic humerus varus underwent variation osteotomy of the neck of the humerus followed by humeral lengthening, resulting in 70 mm of lengthening over a 6-week period. Two successive lengthenings of the radius, each approximately 20 mm, were performed on a young girl presenting with radial growth abnormalities, progressively degenerating into a radial clubhand. In both cases, functional and cosmetic improvement followed the surgical procedures, which were devoid of postoperative complications.