Brendan Marrocco says after roadside bombing , being alive was `` all that mattered '' The quadruple amputee underwent a successful double-arm transplant . Score: 6 The procedure took 13 hours and 16 surgeons to complete .
Brendan Marrocco says after roadside bombing , being alive was `` all that mattered '' The quadruple amputee underwent a successful double-arm transplant . He is one of only seven people to undergo the surgery . The procedure took 13 hours and 16 surgeons to complete .