I have successfully used Prolo. There are other posts on this board from me about this if you do a search. Basically, it helped me avoid surgery. Prior to Prolo I couldn't walk a block without pain and limping. I also had to use a cane and back brace more often than not.
Prolo uses natural substances, not steroiRAB, and I like that! I initially had about 8 treatments but I saw results from the very first one. Most people are good to go with about 6 or less but I have gone in for a "tune up" the past two years as well.
My prolo doc uses kineseology to determine the exact sites to inject.
I highly recommend!
jen