My original thread has been closed so I am starting a new one. I had a right TRK (revision, first surgery) on 16 Jan 2016. My knee is so darned painful. Ortho says there is nothing wrong but I believe it is more painful than before surgery which was due to avascular necrosis, not arthritis. Any suggestions on why it is still so painful? It is also still warm to the touch and quite a bit bigger than my non TKR knee.