Surgeons inserted a screw Sunday to help Zubov's foot injury heal faster, according to a team statement.
The 37-year-old Zubov has missed the past 17 games with the injury. He is third on the Stars with 31 assists and fourth in points with 35.
Zubov became the 15th defenseman in NHL history to reach 600 assists earlier this season. He's the only active NHL defenseman with at least 30 assists in each of the past 12 seasons.