The 35-year-old, who has scored one goal in 12 appearances this term, has been out of action since early December with the complaint.
And he has now confirmed that he will be unable to add to that tally after discovering that he will require surgery and a lengthy lay-off.
“Injury Update, rehabilitation has not been successful seems at this point surgery is our only option meaning my Season is over," he wrote on his personal Twitter account.
“Everything that could have been done has been done, but the most important thing is P.L. Football for Reading FC next Season."
The Royals are currently languishing in 18th place in the top flight, one point short of safety.