Moss did not undergo a microfracture procedure last week in Vail, CO. An end-of-the-season MRI had revealed cartilage being separated from the bones in his left knee, and it was determined that microfracture procedure would be the best course of action.
Such a procedure typically requires two months of rest, followed by four to six months of rehabilitation.
Dr. Richard Steadman in Vail did a diagnostic scope on Moss' knee and reported back to the Pirates that he felt arthroscopy was the best course of action. That is a less invasive form of surgery. The surgery was performed last week and involves a much shorter recovery time.
Pirates general manager Neal Huntington reports that Moss has already begun his rehabilitation and should be ready to go when camp opens next February. The club will monitor Moss' knee with periodic evaluations throughout the season.
Moss is expected to compete for a corner outfield spot in the spring. He came to Pittsburgh in the July 31 trade that sent Jason Bay to Boston, Moss hit .222 in 158 at-bats. The outfielder hit six homers in the season's two final months and finished with 23 RBIs before missing the final six games of the season after his knee injury was identified.