Hand transplantation--a review.

: Hand transplantation is a treatment option for complex injuries that leave patients with structural, functional, and aesthetic deficits that cannot be addressed by other means. It is a form of vascularized composite tissue allotransplantation (CTA). CTA is the highest rung the reconstructive ladder due to its complex technical and immunologic challenges. Despite completion of the first successful hand transplant in 1999, our understanding of hand transplantation is still evolving. Ongoing research is needed to improve functional outcomes and decrease the morbidity associated with long-term immunosuppression. This review will discuss the current protocols for upper extremity donation, transplant receipt, surgical technique, postoperative rehabilitation and immunosuppression, nerve regeneration, functional outcomes, ethical issues, and financial considerations.