The Dodgers issued a statement saying that Dr. Neal ElAttrache repaired a labral tear in Ryu's shoulder.
Until ElAttrache performed the operation, the
What ElAttrache found, Manager Don Mattingly said, was "as good as it could possibly be."
"It sounded like a really good result," Mattingly said.
Ryu, who was already ruled out for the season by Mattingly, didn't throw a single competitive pitch this season.
The left-hander was shut down in mid-March and was never able to build the arm strength necessary to start a minor league rehabilitation assignment.