Segal was added to the roster Thursday and center Steve Ott was placed on the injured list. Ott underwent an emergency appendectomy Monday and will be out until after the Olympic break ends March 2.
Segal appeared in 25 games for the Kings, scoring his first NHL goal Jan. 9 against St. Louis. The winger made his NHL debut last season, appearing in two games with Tampa Bay.
Ott has 11 goals, 12 assists and 100 penalty minutes in 52 games this season.
The Stars also sent forward Ray Sawada to the Texas Stars of the AHL.