From the Vancouver Canucks:

Vancouver Canucks President and General Manager Mike Gillis announced today that centre Ryan Kesler had successful hip labral surgery.

“After consultation with our team physicians following the playoffs, it was deemed that Ryan would require a procedure on his hip,” said President and General Manager, Mike Gillis. “We expect a full recovery and determined this procedure would best serve both Ryan and the team’s long term goals.”

Full recovery is expected to take 10-12 weeks.

Update 2:30pm PT Jason Botchford states the surgery was last Monday, and Kesler is expected to be able to return near the start of the season.