via the Blackhawks,

The Chicago Blackhawks announced today defenseman Duncan Keith underwent successful surgery to repair a right knee meniscal tear. The procedure was performed at Northwestern Memorial Hospital by Blackhawks Head Team Physician Dr. Michael Terry.

“Duncan underwent successful surgery today to repair his right knee meniscal tear,” Terry said. “The surgery was successful and we expect him to return to full hockey activities in approximately 4-6 weeks.”

added 1:50pm,