I had a muscle transplant in 1954. Had polio in 1946 which destroyed most of the muscles in my legs. Doctors transplanted some of the good muscles that were left (side leg muscles). Had great results and I was able to walk better than before the surgery. I'm 57 now, and only problem I have is Post Polio Syndrom.....which has nothing to do with the surgery. They have been doing this surgery for years. Good Luck.