Killorn scored a goal on four shots and added two hits in Wednesday's 7-4 loss to the Blue Jackets.
Killorn (knee) was activated from injured reserve Saturday ahead of his return to the lineup against Toronto.
The Ducks announced Saturday that Killorn is expected to be out four-to-six weeks after undergoing arthroscopic knee surgery at some point next week. He was placed on injured reserve Saturday, per the NHL media site.
Killorn provided two goals in a 5-4 overtime win over Florida on Monday.
Killorn registered an assist, three shots on goal and a plus-2 rating in Monday's 4-3 win over the Red Wings.
Killorn scored a power-play goal on three shots and added an assist in Saturday's 4-3 shootout win over the Avalanche.
Killorn managed an assist, four shots on goal and two PIM in Thursday's 5-4 loss to the Capitals.
Killorn scored a power-play goal on four shots in Friday's 5-2 loss to the Kings.
Killorn (finger) was activated from injured reserve Sunday, per the NHL media site.
Killorn (finger) has begun skating in a non-contact jersey, Eric Stephens of The Athletic reports Wednesday.