You are right, there are NO guarantees to anything including these stem cells and PRP and other Prolotherapy. Dr. Marc Darrow in our town has a huge clinic and on his many sites he has places to send him questions. Why not do that.

I've had some . Prolo work in some joints but not stem cells. I don't hear a lot of GOOD things and there is so much talk today about them.

I've had nerve damage for going on 10 yrs from hip replacement and posted in the PN area what works BEST for me, check it out. I've had a lot of burning, tingling and now not that much.. Lots of numbness from dead nerves which may never return. I manage, not happy but damage is done.

My best things that work are:

Grape Seed Extract
Inosine
Sphingln

And in the last year HGH homeopathic gel. Check out my posts in PN. c