Dr. William Meyers performed the surgery in Philadelphia, the second similar one he's done on Hamilton the past three years. In 2009, Hamilton suffered a partial tear of the abdominal muscle. This injury was on his left side.
Hamilton is scheduled to return Saturday to Texas and is expected to make a full recovery before the start of spring training in February.
Hamilton, 30, batted .298 with 25 homers and 94 RBIs this season despite missing more than a month with a fracture in a bone in his right arm early in the year.
In the postseason, he batted .271 (19-for-70) with seven doubles, one homer, and 13 RBIs in 17 games. The seven doubles tied for the team lead; his RBI total ranked third on the club.
Jeff Caplan covers the Rangers for ESPNDallas.com. Information from The Associated Press was used in this report.