Christiansen scored a goal in Tuesday's 7-2 win over the Avalanche.
Christiansen has two goals and two assists over his last six games. The Blue Jackets have been looking for stability on the third pairing, and the 27-year-old has stepped up to fill that role. He's added eight shots on net, 16 hits, 10 blocked shots and a minus-2 rating over 12 appearances this season. Christiansen will still need to compete with Dante Fabbro and Erik Gudbranson to maintain a steady spot in the lineup.