The 6-foot-9 England native, acquired by New Orleans during the offseason, played in two games for the Hornets. He had two points and 11 rebounds in 35 minutes.
Mensah-Bonsu has been inactive for the Hornets' last 22 games.
Undrafted out of George Washington, he has appeared in 61 career games during four seasons split among the Dallas Mavericks, San Antonio Spurs, Toronto Raptors, Houston Rockets and Hornets.
He has career averages of three points and three rebounds in 8.3 minutes per game.
Tuesday's move left the Hornets roster at 14.