I had arthroscopic surgery on both knees for meniscus issues. The first, about 15yrs ago, was a sharp pain that prevented
me from bending my knee beyond a certain point, but only really painful when bent. The second, 10yrs ago, was less painful, and more inhibiting of movement - it wasnt that I couldnt move it, but it felt weak (rather than painful) - like if I pushed it too far, I would do more damage.
In both cases I went to an orthopedic specialist who diagnosed it quickly and the result was a partial removal of the damaged parts of the meniscus, preserving as much as possible. I suspect the amount of pain is related to how much of the damaged meniscus has found its way into a part of the knee where it shouldn't be as the first time (caused by impact) I had detached fragments, whereas the second time I think was just a tear caused (I think) by strain on the joint.
I've had no issues since, and I wondered if (like many body tissues) there's the possibility of regrowth over time. It seems that regrowth of menisci is limited because of the lack of blood supply, but there is apparently a technological development that could be interesting for those with significant meniscus issues (http://www.londonkneeclinic.com/...ion=4&article=21
) - I'm afraid I don't know anyone who can vouch for this, though.