that the prosthetic can go on. >> every patient that suffers an amputation goes through tailored therapy to learn how to use their new limb. peter culic has had his prosthetic leg less than two weeks. >> the siphons of progress can be small sometimes. but, look, no hands, there, he's using one hand earlier, two hands before that. let me show you something else. come around and take a look. when you actually look spefblg specifically at what's happening over here, look what's happening with the prosthetic. you get the sort of expect that you want, the heel to toe sort of rock. that's not something that comes naturally. that's something pete has to practice. >> surprisingly, everyday tasksic like making coffee, is part of therapy, as well. >> he's not holding on right now. he's trusting his leg. he's got a lot of balance that he's testing and successfully