thanks for replying, I suggested an xray but he was so sure that it was bone that he said that there would be no point and that my leg was very stable.

my muscles are strong enough, there was a little clicking but said that my knee moved smoothly and I could go back to cycling and swimming, but then it swells up and gets sensitive around the bone growth and underneath the bone growth towards the rear of my leg on the inside.

I have been doing ankle excercises, balance exercises to make sure my leg is being supported properly and also been doing swimming which is fine unless I over do the breast stroke.

it seems more like my knee can't keep up anything weight bearing for any length of time, even cycling! which I used to do religiously about 24 miles a day... for fun, and now I can't manage 2 miles without my knee swelling up after it. its extremely frustrating.

kind regards
alex

EDIT:the main exercises that I do are leg lifts with 5kg weights and very gentle roller blading which I feel helps with my balance muscles and also helps with the weight bearing issue. I also stand on one leg with my eyes closed and stretch all my leg muscles before doing any of these exercises.

would it be just a case of determining how much time to carry on this routine and resting the joint? because I did this routine for 6 weeks and my knee felt pretty good, but I started cycling and five days after I started it returned again.