I have now had 4 surgeries on my left knee, including a partial replacement
in 1/11. About 2 months ago, my knee
started swelling without injury. My orthopedist was hesitant to remove the fluid because of the risk of infection, but felt he had to after the 3rd time it swelled, and the joint was full of blood. I had arthroscopic surgery last week, in which they burned off synovial tissue, hoping that was causing the problem.