@spendius,
I think I broke my patella once, or at least cracked it. It was when we were fixing up our house and were in very deep debt. I tripped on plywood, whack! Didn't go to a doctor (I am not anti medicine - I should have gone to a clinic). Money, money. Took about a year not to keep feeling that. Now I have to go look up knee anatomy. Sounds like you tore a ligament..