I am totally sympathetic to you! I had a total knee replacement in 2021 in a renowned Boston hospital and my knee has never been the same. I did exercises to strengthen my quads before the surgery. I developed an allergic reaction to several of the pain meds and was told to just take Tylenol. I was in agony, could not do the in home PT because of the pain. Once I began outside PT, I was there for six months. They did give me a lot of help and support. However, to this day, I cannot kneel and going up and down the stairs is still painful with the knee that was replaced. My other knee is bad but I will never put myself through such a rough surgery as total knee replacement ever again. I will live with the pain, take Advil as needed, exercise to strengthen my quads etc. My “new knee” is just as bad as the knee that needs to be replaced!!! BTW, I go to the gym several times a week and ride the bike, along with knee exercises at home. Unless I am absolutely desperate, I will never have knee replacement again!!! And I totally agree……injections are only temporary relief!