The Mali midfielder, out of contract at the end of the season, will not play again before then after it was discovered his troublesome left knee will require a third operation.
Manager Martin Jol has no other injury concerns as his side seek to build on a four-match unbeaten run.
QPR manager Harry Redknapp has Bobby Zamora fit for the short trip across west London.
Zamora, the former Fulham striker, used the international break to overcome an ankle injury and a dose of the flu to be in contention for a starting place.
Redknapp reported a clean bill of health following the international window and he must decide whether to recall the mercurial Moroccan Adel Taarabt to the side.