I have had two total knee replacements one in July of 08 and the other in Dec. of 08. My first knee is doing great. On my second knee 8 months after the replacement I developed a blood clot deep in my calf. I was on blood thinners for 4 months. Since knee surgeory I have had some pain. Since the blood clot I now have more pain and I have swelling that starts above the knee and goes into my ankel. I can only spend about 30minutes to 1 hour on my feet and and I am hurting bad. Went to my dr. everything is checking out okay. What can be causing this and what are my options at this point. I also have arthritis in my hands and in my left foot (oposite of the leg that hurts). I have been told that this ostoarthritis. What can I do.