Boston, MA (My Sportsbook) - Boston Celtics star forward Kevin Garnett underwent arthroscopic surgery on his right knee Tuesday.

The procedure included the removal of posterior knee bone spurs, a source of the problem that kept Garnett out of the playoffs this spring.

"After this successful surgery, Kevin can now begin to focus on rehabilitating his knee, returning to top physical shape and fully preparing for the 2009-10 season," said Celtics president of basketball operations Danny Ainge.

Garnett played just 57 games this past season because of knee problems and averaged 15.8 points with 8.5 rebounds, 2.5 assists and 1.1 blocks. He missed a month of action before returning on March 20 and played the next four games, then sat out Boston's final nine regular-season games in hopes of returning for the playoffs.

However, the 12-time All-Star was unable to come back and did not play as the Celtics struggled in a first-round series victory against Chicago and lost in seven games to Orlando in the second round.

"I expect Kevin to return to active duty in full force and be that consummate two-way professional that he has shown all of us throughout his fantastic NBA career," added Celtics head coach Doc Rivers.

Garnett joined the Celtics in a July 2007 trade with Minnesota and helped Boston to the NBA title last spring in his first year with the storied franchise.