I've heard of microfracture, but they've never discussed it and he said the stem cell stuff you hear all the ads for is snake oil. This guy is pretty renowned locally, but according to him the next step is probably knee replacement, so i've scheduled an appt for a 2nd opinion with another clinic/doc. Yes, it's supposed to be a temporary fix to help with what the cartilege should do naturally. You can only get them every 6 months, so that's my concern: It'll start hurting again before then. They also said I might not feel it's full effects for up to 6 weeks and it's helped immensely, so that would be the optimistic view. I've given up a ton and just not willing to not be active and do some type of cardio. Planning to buy a heavy/speed bag for the garage so I have another form of cardio that shouldn't stress the knee and may go back by the Y and see if they'll let me try my good ol' Jacobs Ladder and see how that feels because I feel like I could do that too without making it worse.
I've had multiple surgeries for cartilage, ligament, etc... had an ACL reconstruction and finally the knee was just bone on bone... I was told knee replacement was the next step and had it done about 3+ years ago.
I would just say to you to explore all options before that. I have read that a decent percentage of patients were disappointed in the total knee replacement results.. and I was one of them. My knee ended up worse off than before.
I have seen doctors since that say that a TNR revision is more complicated than the initial knee replacement with odds of 1/3 for an improvement, 1/3 about the same and 1/3 the knee is worse.
Activities that I had planned on doing after retirement (primarily hiking) I am unable to do. I guess at some point I will have to go forward with the revision surgery and hope for the best...for now I am reluctant to do so with those odds .
I have spoken to several people who had great results from replacement, but I guess I am here to say it's not a slam dunk and I would use it as a last resort.
Hopefully the injections will continue to show improvement and you can kick the can down the road as far as replacement.