I'm 48 and had OA for 5 years, Like every body els I'm waiting for stem cell to hury upand get here. But I did find somrthing that I found searching the internet, I thought it was new, but is invented in the 1920 and perfected in the 1950's. It's called "PROLOTHERAPY" here is a link where you can find a doctor near you. http://www.getprolo.com/ and it laso explains it. I have not gone yet because these doctors don't take my insurance (they do take insurance, just not the one I have) the cost is $375 per injection and you will need 6 to 10. Any way read up about it. I just cant belive it took me 5 years to find it on the internet, something that's been around since the 50's. And no doctor tells you about it. Anyway this gets back like 30% to 70% of cartlage And then we can all wait for the stem cell people to catch up. lol.  Good look.