The Blues are 7-0-1 since Miller was acquired by trade from Buffalo. St. Louis has won three straight and eight of nine.
Western Conference-leading St. Louis has an NHL-best 101 points. It is the sixth time in franchise history that the Blues have reached 100 points.
Backes has 23 goals this season. Brendan Morrow also scored for St. Louis, and Jay Bouwmeester had two assists.