Bone lengthening in malformed upper limbs: a four year experience.
Bone lengthening by corticotomy, gradual distraction and stabilization with an external frame has proved to be effective in the repair of osseous defects in lower extremities. More recently this technique has been introduced also in the treatment of post-traumatic deformities and malformations of the upper limbs. From 1989 to 1992 we treated 38 patients (46 upper limbs) with bone lengthening of which 12 (16 upper limbs) affected by post-traumatic deformities and 26 (30 upper limbs) by malformations. We present herein our four year experience with malformed cases only. The results suggest that bone lengthening is a simple and reliable procedure to obtain good function, to correct angular deviations and, also, to give a better esthetic appearance. Satisfying results, low complication rates and simple execution recommend its use in the treatment of many congenital malformations of the upper limbs, usually in association with traditional techniques. However, we are now strongly selecting the indications in order to improve our future results. We stress in particular that the treatment of some malformations, as ulnar or radial club hands, could be radically modified by introduction of bone lengthening.