Bummer! We have a Siberian Husky as well. Kodiak. We, too, just took her in to the vet. She's 5. Has been having epileptic seizures for the last four years. Only one seizure per year, so the vet said not to do anything yet. Now, she's had 3 more since August. Looks like we have to start her on medication. Hate to do it, as it's not good for her liver, but it needs to be done.
BTW, this is our second Husky. We love'em.
What's the knee operation for?
Anyway, I hope all goes well.
Brian