The surgeon who performed my last 2 arthroscopic surgeries works out of a hospital that is connected to The University of Washington's medical education program. The benefit of going to these doctors is that they not only work with the best instructors but can also try new things with the patients permission.
The last surgery, my surgeon mentioned that he was concerned that I have the kind of PVNS that will keep coming back since it's diffused. He wanted to try a cartarizing synovectomy. The way he described it was that he would be using a tiny blow torch to burn the interior of my knee. The swelling was a challenge and took a little longer to recover but not by much.
I have now been a year and a half post surgery and although I do feel some signs of it's return, it's not causing any significant pain or impediment to my abilities and has so far been a success.
I have continued to pursue yoga and can do most poses. I still can't fully bend my right knee to where I can sit in a kneeling position with sitting back on my ankles but I can do a childs pose quite well. I'm assuming it's an inflammation issue and it could be a little PVNS in there causing my ability to bend my knee to be restricted.