I had TKR on Jan 30,2022 I am slowly getting better. If I am on my feet shopping and doing regular activities I pay for it that night. The pain usually is behind and the side of my knee. I also have pain down the top of my foot. The pain in the foot is so terrible that it keeps me awake. I don't think I have had a good nights sleep since my surgery. I am on 300mg of gabapentin that I can take twice a day, but I usually try and just take at bedtime. It seems to help some but nothing helps much even vicodin or percocet. I don't take the hard drugs anymore because they don't seem to help that much. I really don't understand why doctors don't try and get you ready for all the pain that you experience with TKR.