Quadruple amputee vet gets double arm transplant

This anatomical diagram from Johns Hopkins University School of Medicine shows an arm transplant.

Marrocco also received bone marrow from the same dead donor who supplied his new arms. That novel approach is aimed at helping his body accept the new limbs with minimal medication to prevent rejection.

Doctors won't know how fully he will able able to use his new arms for more than a year.

Credit: Johns Hopkins University