Re: patella injury
I had a similar injury as the result of a track accident a year ago; I tripped, fell, and my knee dislocated out the side when I landed on it (I also have patellofemural syndrome). I don't think mine was quite that bad though, I dislocated and went to the ER and had a bone chip (they didn't find it and remove it till, like, five months later). I did the same thing twice after that (I also have tracking problems, though), and recovered fine...mostly. I also have a hole in my patella, but it was from the surgery I had to fix my frequent dislocation problem, and my hamstring is attached to it, so it's probably a bit different, but it doesn't affect me in any way now, and hasn't in a long time. The first dislocation I had, though, was a bit rough. It took me a week to get off crutches, but after I got off I had PT for a while and was just about back to normal in a month. I didn't have any long-term damage because of the first dislocation, however, but I don't think my initial dislocation was that severe either.
But, I didn't take care of my knee after I recovered and (to make a long story short) wound up dislocating again and had to get surgery and miss tons and tons of school (which would also apply to work). PT was essential.