[jacobwcarlson]

This is rather odd. Knee cartilage damage is extremely common among athletes, so one would think that the treatment would be as well. But I've never heard of it used for professional athletes.

Speaking anecdotally, I've had 4 wrist surgeries over the past 5 years (coming up on my fifth next week). I've never once heard of the stem-cell injection treatment, despite having 3 surgeons and 9+ other consulting doctors. Did your doctor give you any papers to describe the procedures that made his knee "all better now"?

[Xcelerate]

> But I've never heard of it used for professional athletes.

That's because stem cell therapy is not generally approved for use yet. It is still in the research stage. There was one company that did it for a while in Colorado, but nobody could really figure out whether they were legit or a scam, and the FDA ended up putting a halt on their stem cell injections.