I don’t remember what is wrong with the wife’s knee if I even knew. Wait, is this connected to her leg collapsing on the way to the car one day?
A few years ago a surgeon had to go in my right knee and clean the arthritic crap out and put my kneecap back in place as it was out of its groove. I was NOT walking the next day, my leg was up on a pillow to keep it elevated and in a couple of days I could walk on it. There was little pain right after the surgery as long as I didn’t try to walk on it. Because he had to spend more time in there to get the knee cap back where it should be, it swelled more than just a surgery to get arthritic stuff out.
Torn meniscus.