I had knee surgery on my left knee twice in 2 weeks for septic arthritis i got in the hospital after having a colonoscopy. It has been a horrible experience. I coukdnt even get on an off the toilet and had full use of my right leg. It's been 9 months and I have permanent damage from the destruction the staff infection that turned septic did. I am not a candidate for kbee replacement because im susceptible to infections now. Please avoid any unnecessary surgeries.