Today it's been three weeks since I had my knee surgery. My incision has healed up very cleanly, leaving very little scarring. I am still doing daily exercises as home and the physio people where I go twice a week are very impressed with my "speed of recovery". One thing that was not planned on is the massive strain that being gimped up puts on your back and chest muscles. I have managed to overstress my upper back and upper chest muscles while climbing out of a seated position to a standing position where I can use my walker. The pain from my upper back and chest is far greater than the pain from my knee operation, and this pain makes it very difficult to get 8 hours of unbroken sleep at night. I'm still using my walker to get around, but make do with a cane whenever I can travel short distances. During the next week I hope to use my walker less and my cane more.-----Brian