Now I know that's a controversial title but it is still a genuine concern. I've got grade 4 arthritis (i.e. no or virtually no cartilage) between my femur and patella in my left knee with some spurs etc. in the other compartments. That means pain of course - more noticeable when walking on slopes or standing for a period of time. Less so when sitting or walking for short distances on the level. But I can still bend and extend the knee fully or virtually fully so simple tasks that I take for granted such as getting in and out of the shower over my bath (not a walk-in) or putting my shoes and socks on are trivial. And you get used to pain. I don't like it of course but you learn to ignore it. When I've tried stronger painkillers, like co-codamol, I found the constipation much more unpleasant so I stick with 8 X 500mg paracetamol per day. I'm sleeping OK at the moment as I've taken on a new set of activities which I can cope with. I know some people who have had TKRs and none of them walk naturally. One person has two false knees and a false hip. When he stands I can tell his knees aren't properly straight. We went on a walk together. Now I had to ask him to slow down and he wasn't using a walking stick but he confessed reluctantly that he had to take painkillers (co-codamol) beforehand. One knee is just 11 years old and it is beginning to play him up. Another person obviously has one leg longer than another. He can stand longer than I can but his walking doesn't look right. My brother-in-law has permanent pain (one of the unlucky few his OS told him) and has to use a scooter to go shopping though he also has gout. But, of course, there are success stories recorded on this website and they must be genuine. There is a human tendency to stand by your decision no matter what though. I do know that the surgeons check the knee in bend and extension before sewing you up so why is it so difficult to get bend and extension?