No, the kirst knee going out was a result of Skateboarding. The knee right now is likely from cycling because that's all I do now. I wouldn't even say it's from riding fixed because I've mostly been inside on the trainer lately.
I'm going to re-evaluate my position on the bike. Maybe try the saddle a little farther forward or something. Of course that'll have to wait until it feels better.
Oh and the tricks I was talking about is basically just grossing people out by popping my cartilidge out. It makes a very noticeable bump in my knee that shouldn't be there. It's only funny as long as I can put it back where it's supposed to be.