For those who are interested in my knee post-op: it is doing quite well. I am diligently putting ice on the knee 3 times a day and trying to exercise it a little. It did swell up and was very hot after Sunday. I think I did too much on it and was standing for quite a long time. I removed the plasters and steri-strips myself on the w\e to reveal the 2 small wounds. Very clever this micro-surgery. I am also off the crutches now and can walk slowly.
As for the rest of my body (post shock) - still a bit weak and wobbly but getting stronger each day. It does mean I have been able to slow down and catch up on some reading.