Strangely, I have had bi-lateral hip replacements and bi-lateral shoulder replacements and one hip revision and I am sooooo much more nervous about the knee replacement. I have suffered from JRA pretty much all my life and I had my first replacement at 28 years old. I am now 44 and this one has me pretty freaked out. I know once done, I will do,what I always do, plug ahead and get moving... But it's got me a bit in knots...