The Pelicans said the operation was performed Wednesday by Dr. Richard Ferkel of the Southern California Orthopedic Institute in Los Angeles.
Ferkel said the surgery "went very well" and that Cousins is expected to make "a full recovery and be able to return to basketball after an intensive rehabilitation program."
The Pelicans have said Cousins will miss the remainder of this season, but no timeline for his return has been announced.
Cousins, 27, who has averaged 25.2 points, 12.9 rebounds and 5.4 assists this season, is due to become a free agent this offseason.
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