Sorry the PRP didn't help you either. I'm currently getting Hyaluronic Acid knee injections from Dr. Noori in BHC, AZ. Very profession manner and staff, He does a good job using x-ray to help guide the needle and Medicare covers this expense. I just finished my second shot of the three and I think I've improved some. Previously I had the Hyaluronic Acid with only one shot, but Medicare won't cover the single shot and I think I'm reacting better to the lower dose series of three. Even with local pain killer the needle still hurts