I was in an accident, I was on a snowmobile that collided with a large truck. My knee cap was broken in several places along with a hip injury. Oh they had me moving somewhat within a few days, but I guess by "down" I meant recovery time in general until I could do something like go on vacation or to a concert. Definitley wouldnt have attempted any of that for a goooood few weeks... or months. Depends how fast you bounce back. I think I did well.
Yowza, that wasn't just a knee surgery-sounds like you were lucky to have only escaped with those injuries if you collided with a truck. That's scarey-I've been on snowmobiles my whole life, but I think they are just as dangerous as motorcycles when in an accident.