It's the lateral part of the knee, where the meniscus is. I've had 40% of it removed, but the remaining 60% is still unstable and flaps about. Last week it moved a great deal, and I heard a massive snap when it went back into place - which leads me to believe it's a further tear.
I've actually got in contact with my surgeon who has recommended that I come and see him. Apparently there's a procedure which may help, but it's not minor surgery. I've no idea what this may be!
But there is no numbing, and slight swelling.