Oh that sucks. Hopefully the surgeon doesn't find a need for another surgery to move things around.
This is not a pleasant roller coaster to be on, I can only empathize.
On another note, with a really painful dog I'm not surprised they would want to sedate him for a knee x-ray, but put fully under (as in, general anesthesia), that's odd. The general tought is that if he's going to fight positioning due to discomfort (especially for the non-lateral positions), he may hurt himself more and do further damage to the harware. But if he's really good with you, then that's better than sedation of course.
“Your birth is a mistake you'll spend your whole life trying to correct.” Chuck Palahniuk
I love pus but I hate people.
I can say words like undifferentiated gonads now!