Hansen, 22, clattered head first into the boundary fence at the Lockett End of Etihad Stadium after kicking his second goal in the 13th minute of the last quarter and immediately clutched at his lower back in obvious pain.
Speaking to the media after the match, Scott said Hansen had been sent to hospital for precautionary scans, which was standard procedure for such an injury.
"He's got full feeling in his toes and his fingers so we're confident there isn't any nerve damage," Scott said.
"But whenever there's that risk of spinal injury … he can't move too much because he's strapped into a stretcher and he couldn't move if he wanted to.
"All I know is that he's got a sore lower back and whenever there's any risk of spinal injuries they just immobilise the player and send them off to hospital as a precaution.
"He could wake up tomorrow and be fine or there could be something more serious, but we really don't have much information at the moment."
Jack Ziebell was substituted off after experiencing calf soreness during the third quarter, but Scott said the move was precautionary and he's confident the player will be available next week.
