Thanks drak, I'll explore those links. I don't think PRP is viable for cartilage loss, but it works in some cases for muscular issues like plantar fascitis and tennis elbow.
Dr wants to go in and poke around based on MRI. I'm going to get a second opinion as he couldn't tell me much from looking at it besides there were some issues. There's also a "weird" doctor in SF that does some stem cell stuff, I might check that out.