Hi Tom
I had 3 PRP injections, a week apart, a year after sustaining a labral hip tear. I also changed my sitting and walking posture to avoid further wear and tear on that area. The treatment has been successful and I'm back to normal. I have not yet had a follow-up MRI to see the changes (MRI's are quite expensive here). However, I was very happy with the results and relieved that I wouldn't need surgery.
The injections were painless and quick, and were done at Cape Sports Medicine in Cape Town, South Africa. It cost about $150 per session.
The doctor was very careful to manage my expectations and explained that it does not always work. But for such a low price it was worth trying, rather than going under the knife.
Good luck!