Yes I'll definitely talk to my anesthetist.

The surgery is a little bit complicated... I don't exactly know what they're gonna do yet it was just too complicated for me. What I do know is that they are going to work on my cartilage (I have very little left because of an accident I had when I was 6) and my meniscus. The surgery will probably last for about 2 hours.

Is age relevant for the after effects of a surgery? I am 17 and have never had any trouble with anesthesia.
Thanks for all your help