I had a total knee replacement 9 weeks ago. This was my second replacement and it took forever (4 months) to get off the pain meds with the first knee. I was hoping for a better result this time. I do, however, have a different problem with this procedure. All around the incision, I feel tight, very tight. The skin surrounding the skin is very tender. There does not appear to be any infection, just warmness from time to time. I am wondering if this is a scar tissue problem and what can be done about it? I finished therapy a month ago.