I will say up front that it is no comparison to a crown on a tooth. I have crowns on my teeth and I had a Knee Replacement. The knee replacement takes much time to heal, it’s painful and you must take your pain meds. when needed. Some people heal fast, months, while others takes a year or over to heal! You will have different feelings about the new knee. You will need physical therapy to help you. This surgery is not a walk in the park! Given time you will heal and take it one day at a time. Ice, elevate, rest, and exercise will be done everyday in your process of healing. I have a wonderful surgeon and glad that I had this done. I have also had lots of pain in healing! I’m still working with it! We are warriors and we will all feel better with time! Good luck!