I had mesenchymal stem cells, harvested from my hip, injected by my trusted, long term, pain management doctor, after an accident that seriously injured the nerves around my extremely curved, inoperable spine. It was a long healing time, but procedure was successful! Expensive.
About 6 months after I was really up and about, we realized there was a second location that was a problem. After deciding to do the procedure again, my doctor said that it had been determined ( by the government?) that more research has to be done and he could no longer do the same procedure. However, PRP was still allowed, and I decided to try that. Much less expensive, but as I am older, my blood stem cells were not as prolific as my bones.
There was some help, not as dramatic as the first procedure, so I would recommend trying it. However, do lots of research on using donor PRP, as there could be numerous issues that could go from ineffective to harmful.
Using your own blood for this is easy, just a blood draw from your arm.