Hamilton returned from the original procedure in late September, but he experienced new discomfort after slamming into the wall making a catch against the Angels during the final series of the regular season.
Citing that the new procedure was needed only to clean up the knee, Daniels told reporters it "wasn't a major structural repair," and he mentioned having already received positive reports on Hamilton's recovery.
Hamilton had a very quiet postseason, going 3-for-18 in the Rangers' five-game American League Division Series loss to the Toronto Blue Jays.
Tom Singer is a reporter for MLB.com and writes an MLBlog Change for a Nickel. He can also be found on Twitter @Tom_Singer and on his podcast. This story was not subject to the approval of Major League Baseball or its clubs.