The Pacers announced Monday that Foster will have surgery after the All-Star break. He is expected to be ready for training camp in the fall.
The 6-foot-11 Foster has played in 16 games this season and averaged 3.1 points and 5.1 rebounds per game. The 10-year veteran is fourth in Pacers' history in games played with 697.
The Pacers also are without rookie forward Tyler Hansbrough, who has been out since Jan. 16 with an inner ear infection and isn't even allowed to work out.