Sheesh. It does explain our C depth though.
The fact this thread hasn't been bumped since last November is a reflection of what we're missing out on with him in the lineup.
Edit: This is the quote all the articles are basing this off. He definitely had the surgery back in March, just hasn't gone right.
"I’m told Christian Dvorak’s injury toward the end of last season is not expected to heal in time for the start of training camp and could bleed into the regular season, perhaps a week or two. At the time his knee surgery was announced on March 15, the Canadiens said he would be ready for the start of the season, but that appears to no longer be the case." - Basu