I have not heard of this surgery causing paralysis, and none of the people who have said it is an issue have presented any evidence or links to where they have read that information.ooh_la is really scaring me. xP
I had the surgery 16 months ago and I can walk, run and jump just as well as I did before the surgery. The stretching is so that you can heal faster as the muscle will contract post-surgery - it has nothing to do with paralysis.