If they are replacing the ACL those two red marks on your quad above your knee are form wires they stuck through it to pull the new ACL up into a hole they drilled. It wasn't a vampire...
if you didn't get it replaced but just fixe dup, then disregard
Hope the surgery went well Jens. I found your journal from Nelms's injured list, bless him, but I read several pages from your journal and still couldn't find out what the surgery's for, apart from the above post. Anyway, I hope you heal quickly girl!