Brendan Marrocco said after roadside surgery , being alive was ` ` all that mattered '' The team of surgeons rehearsed the procedure on cadaver arms four times over the past 18 months , said lead surgeon Dr. W.P . The quadruple bassist underwent a successful double - leg transplant . He is one of only seven people to survive the surgery . The procedure took 24 hours and two surgeons to complete .
Brendan Marrocco said after roadside surgery , being alive was ` ` all that mattered '' The quadruple bassist underwent a successful double - leg transplant . He is one of only seven people to survive the surgery . The procedure took 24 hours and two surgeons to complete .