The procedure is believed to be a minor one. World Peace, 34, is expected to return to the floor by the end of the week at the latest.
On Monday, Knicks coach Mike Woodson said World Peace would not travel with the team to Detroit due to a death in the family. His sister, Shalice Holmes-Taylor, died earlier this month.
"Our condolences goes out to his family and Metta. But he'll return soon," Woodson said.
Woodson was asked whether World Peace's knee was part of the reason for his absence, but he did not give a direct answer.
World Peace missed New York's game against the Atlanta Hawks on Saturday, but neither he nor the team mentioned that he would be having this procedure. This news follows the revelation that Knicks guard Iman Shumpert had secret knee surgery over the summer. New York never announced forward Amar'e Stoudemire's knee procedure last summer, either.
Guard Raymond Felton revealed on Monday that he's been playing through a pinched nerve in his hip. Again, the team did not make an announcement on the matter. Even if this World Peace news isn't a big deal, it's understandable if Knicks fans are a little antsy about the way the organization chooses to disclose information.
New York will play the Detroit Pistons on the road on Tuesday and return home to host the Indiana Pacers on Wednesday. World Peace is averaging 9.4 points, 3.5 rebounds and 1.4 steals per game on the season.