The 28-year-old has not played since the 2015 playoffs. No timetable was given for his return.
Pondexter, who joined the Pelicans via trade in January 2015 from the Memphis Grizzlies, underwent surgery to repair cartilage his left knee in May 2015, soon after New Orleans was swept in the first round by the Golden State Warriors.
Two months later, he told the Times-Picayune that he "begged" the medical staff to not administer an MRI until after the postseason, out of fear that the results would take him off the court.
"To finally be a starter on an NBA team like I was and playing for Monty Williams last year, I didn't feel ... I couldn't sit out," Pondexter told ESPN in April 2016. "There was no part of me, no matter what pain I was going through, that I was going to sit out -- especially after finally earning a starting spot in a place I really love."
He returned to scrimmaging in late December 2015 but would be shut down in January to undergo a cartilage replacement procedure on the same knee. He said in March 2016 that he expected the second surgery to provide a "permanent fix." Pondexter participated in team workouts in Los Angeles this summer but was unable to rejoin the team for the start of the regular season, as he once hoped.
"It's been a long, long journey," Pondexter said on media day in October. "There's not a person that's attacked their situation or worked harder than me in this thing. I wish everyone knew how much I'm working and I'm dedicating my life to getting back on the court and playing for this team and this organization."
Pelicans general manager Dell Demps said on Dec. 1 that Pondexter was cleared for noncontact activity, but he never took the court for a game this season, raising the possibility that he would miss an entire season for the second time.
Pondexter appeared in 45 games in his lone half-season with the Pelicans in 2014-15, averaging 9 points, 3.1 rebounds and a career-high 43.3 percent shooting from 3-point range.