The operation on his meniscus was performed Monday at the Steadman Clinic in Vail, Colo. He will go through rehabilitation on the knee before a date is scheduled to repair the ACL.
Gallinari was hurt on April 4 against Dallas when he planted his left leg awkwardly while going in for a layup. The knee buckled and he went down, screaming in pain.
The Nuggets have missed Gallinari in the playoffs against the Golden State Warriors. He averaged career-highs in points (16.2) and rebounds (5.2) this season. He also led the team with 135 3-pointers.