Hi there @phigg, Oh dear.....I didn't see the word ICE in your discussion so I would just like to remind you that ICE is one of the best answers for controlling TKR pain and discomfort. You mention that you get up in the early morning hours. Is that about 5 am? That's when the pain woke me up and the first thing I did was get out the ice knee brace and wrap it around my knee before putting my foot on a pillow or riser. I actually purchased of the ice braces from Vive Health so that I would always have one ready. Swelling is another reason to use the ice brace. It has extra ice bags that fit in pockets in the back. That helps with the pain and the swelling. Wishing you a continued positive recovery.
Chris