I had revision and it was very difficult to say the least. I had no choice since the glue had not taken and the original tkr was actually bowing inside my body. BUT the revision knee is very large and I'm told in ten years (which is now 7 and a half) I will need a revision of the revision. Since the units are larger they don't last as long. I have since had tkr on the other knee and also am reminded everyday by my knees that I had the surgeries. Going back, I'm not sure I would have had the surgeries at all. Although I need to remember I was bone on bone and that was painful for sure. It's a tough road. Wish all the best of luck.