Saha sustained the injury in a league game against Fulham on 19th March, and has undergone corrective surgery.
Manager David Moyes has confirmed Saha is now set to miss the rest of the current season. The injury is a major blow to Everton, as Saha had scored 9 goals since January.
Saha now joins Mikel Arteta and Marouane Fellaini, who are also currently ruled out with injury for the Toffees.