I had a "Birmingham Resurfacing" done at the Rothman Institute in Phila. Talk about pain! I thought my skiing, biking days were over. I ballooned up to 252LBS. Through desperate research and talking to EVERYBODY I was directed to a woman who's brother is a physician. At the center of it all I found a group of physicians and scientists that invented a supplement that put me back on track. I can now ski, run, tennis etc WITH NO PAIN WHATSOEVER and I am 63 years old.
If you want more info I'll put you in touch with one of the doctors.
chandlerwrites@yahoo.com