1 / 6 Double-Leg Transplant

<strong>When and Where:</strong> July 2011, Spain A young man in his 20s underwent a <a href="https://www.huffpost.com/entry/double-leg-transplant-first_n_896442" target="_hplink">10-hour surgery in Valencia</a> just last Sunday to give him a new set of legs. Doctors hope that the patient will be able to walk with the help of crutches within about a year -- depending on how his nerves regenerate. A double-leg transplant had never been attempted before, in large part because in most cases of leg amputation, highly effective prosthetic legs can be used instead. The effectiveness of this surgery remains to be seen, but Dr. Pedro Cavadas, the doctor who performed the surgery, is hopeful. Dr. Cavadas <a href="https://www.huffpost.com/entry/double-leg-transplant-first_n_896442" target="_hplink">also performed the first face and double-hand transplants</a> done in Spain. Photo Credit: Getty

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