Defenseman Jordan Hendry underwent surgery Tuesday to repair his torn left anterior cruciate ligament.
"Reconstructive surgery to repair Jordan's left knee ACL tear went well," said team physician Michael Terry, who performed the surgery. "We anticipate a full recovery in approximately six months."
Hendry, 27, suffered the injury when he was checked into the boards by the Coyotes' Shane Doan on Feb. 27 at the United Center. His left skate appeared to get lodged against the boards.
A day later, the Hawks acquired defenseman Chris Campoli from the Ottawa Senators.
Hendry has recorded 13 points (four goals) and 40 penalty minutes in 129 regular-season games over parts of the last four seasons. He appeared in 15 playoff games last season. He accompanied the team to Washington for their White House visit on Friday.