The Flin Flon, Man. native was signed as an undrafted free agent to a three-year entry-level deal in March after playing four seasons with the Edmonton Oil Kings of the Western Hockey League, winning a Memorial Cup in 2014.
He has eight points (3G, 5A) in 19 games with the Comets this year.
The Canucks were missing three defencemen in last night's overtime win against the Edmonton Oilers. Luca Sbisa and Dan Hamhuis are on injured reserve, while Chris Tanev is day-to-day after blocking a shot with his foot.
Vancouver's next game is Monday night against the Los Angeles Kings. If Sautner is in the lineup, he will be making his NHL debut.