I have had both knees done, and glad I'm this end of it, but like others I have clunking. My right knee
swells and feels like it is pulling away from my knee cap
. Now if I walk too far, and 'm only talking half a kilometre, I am in agony. My muscles at the back of my thighs feel like lead weights. The tightness doesn't seem to be improving. I am doing all the excercises including bike. I am going to try physio, although my surgeon thought I was doing so well I shouldn't need it.