Hello Eric.
I figure I've been lucky after reading about some REAL problerms. I have had among other things, both knees totaly replaced about a year apart. They were done by two different bone specialists. Both knees give me some pain when I walk. That I can live with by taking the Tyenols but what is a real problem is I cannot kneel on them even on a pillow without the pain becoming excurciating. I have to fall over to one side or another. I was told there is nothing that can be done to correct this. If I fall someplace without someone with me I would have to hope a stranger would be there to help me get up. I feel darn lucky to be able to get around as I can. I'm writing this to let you know not all the knee jobs have been good ones , but maybe, I hope, a better answer can be found for your problem. Frank