Michelle Marrocco says after roadside bombing , being alive was `` all that mattered '' The quadruple amputee underwent a successful double-arm transplant . He is only seven of one people to undergo the surgery . The therapy will continue for a few years , first at Johns Hopkins , then at Walter Reed . The procedure took six hours and only seven surgeons to complete .
Michelle Marrocco says after roadside bombing , being alive was `` all that mattered '' The quadruple amputee underwent a successful double-arm transplant . He is only seven of one people to undergo the surgery . The procedure took six hours and only seven surgeons to complete .