As many of you know, I had both knees replaced - left knee in June 2006, right knee in January 2007. Post-op for the left knee was fairly routine - as far as knee replacements go. Unfortunately, not so for the right knee. I had a number of set-backs in the hospital - was there 9 nights instead of the usual 3, and it took 10-1/2 weeks to be able to drive after the right knee was done instead of the 7-1/2 weeks it took for the left knee. It had nothing to do with the fact that you work the accellerator and brake pedals with the right knee. About 5-6 weeks post-op right knee, I began commenting to the doctors and physical therapists that the right knee hurt - didn't feel the same post-op as the left knee. That fell on deaf ears until August 10, 2007 - almost 5 months later when I was sent for an x-ray and learned I had a fractured patella and avascular necrosis (dead bone!). I was LIVID, and you could see the smoke coming from my nostrils. We all agreed - surgeon, my primary physician and I - to go the conservative approach and see if it would heal itself. I really didn't want more surgery. I had a variety of braces, one of which I named "Lazarus" after the biblical man raised from the dead. I sarcastically wondered how "dead bone" is brought back to life. The knee has not improved, and many of my cruising friends have seen that I don't walk very well and getting up from certain chairs is very difficult. I have other issues with my legs as well. I normally pay no attention to a ship's motion, but it now bothers my knee. I finally made it known WITH A ROAR that my patience ended, and I wanted some answers pronto. So I'm now undergoing a series of tests (today and tomorrow) to determine if there's an infection in the knee, or if there's an infection somewhere - just where. Blood was drawn this morning, and sent to a special lab to separate out the white blood cells and inject them with radioactive markers. Then, I had to return and my radioactive white blood cells were re-injected into me. No, I won't glow in the dark. Tomorrow I go back for a series of scans to trace what's what and see if there's an infection in my knee. Friday, I go to a pain management specialist to see what's going on with my cervical and lower lumbar spine. Somehow, I suspect an MRI in my future. I want to know what's going on with my knee and what's going on with my legs. I won't have any immediate answers, but I thank all of you for your concern.