With the world championships less than two weeks away,
That means Miller will arrive at Vail/Beaver Creek in early February without having competed in any World Cup events this season.
"I'm not quite 8-1/2 weeks out of surgery," he said after taking a training run at Kitzbuehel, Austria. "It's not enough time to run this with confidence."
Following the repair of a herniated disk, Miller has tested himself on courses several times in recent weeks, skiing well but remaining cautious.
"Another week and I should be good," he said.
The start of competition at Kitzbuehel on Friday saw U.S. skiers Andrew Weibrecht and Steven Nyman finish fifth and 13th, respectively, in the super-G.