I had complete right knee replacement surgery in January 2008 when I was 74. I was walking well within days (with pain) and had several weeks of PT. I was a model patient.
However, I still have pain in that knee, especially below the operated knee. In a requested follow-up visit after about 8 months, the surgeon showed me the x-ray -- picture perfect -- but that knee still hurts. I had further PT with little results. Then they suggested I go to Curves an exercise facility for women only). After 135 visits (averaging three times weekly) I am still experiencing knee pain.
I was told that unfortunately some people do have post-operative pain. Those that don't are very lucky in my opinion.
I manage to do my daily tasks; keeping busy helps me forget about the pain. However, I cannot kneel on that knee without lots of cushioning below it. My internist told me I should not kneel on it, something the surgeon never told me.
Some days are worse than others. I usually ice the knee at least once a day and also use Icy-Hot gel. I am taking Tramadol for arthritis pain in several other areas of my body (back, neck, shoulder).
Would I do it again for the left knee? Fortunately I don't seem to have arthritis in that knee. I doubt that I would have the surgery, though, if needed as the pain I experience is about the same as it was before I had surgery.