Above-Knee Replantation Following Traumatic Bilateral Amputation: Sciatic Nerve Transplantation

Abstract

A 12-year-old boy who was overrun by a train, sustained traumatic bilateral above-knee amputation and a rupture of the symphysis. The left leg had multiple fractures and soft tissue injuries and amputation was necessary. The right one, although severely crushed, at the amputation site and with a MESS of 9, was replanted accepting some shortening and a soft tissue defect at the amputation site, employing saphenic vein grafts from the amputate (left leg) and an early free latissimus dorsi-flap. Septic complications at the amputation site were managed, and an autologous sciatic nerve graft was performed 8 months after the accident, employing the contralateral above-knee stump as the donor. Protective foot sole sensitivity was noticed after 2 years and 4 months and continued to improve. Further reconstructive procedures included ORIF of a femoral fracture in the contra-lateral stump. On the replanted leg proximal tibia corrective osteotomy and lateral collateral knee ligament reconstruction were performed. A follow-up of 7 years and 9 months demonstrates now a leg capable of full weight bearing and recovery of overall protective sensitivity. The boy made good psycho-social progress after difficulties and feels that the replanted leg is of significantly greater use to him than the hi-tech prosthesis on the other leg.

Keywords: Reconstructive surgery.