The arthroscopic procedure repaired a slight labral tear. Aldridge was bothered by the injury late in the season and missed the Blazers' final eight games.
The 6-foot-11 power forward announced earlier he would have the proactive procedure for the tear, which he described as minor. Aldridge had surgery to repair torn cartilage in his left hip when he was at Texas in 2005, but that injury was more severe.
Aldridge averaged 21.7 points, 8.0 rebounds and 2.4 assists this season while shooting a career-high 51.2 percent.
Dr. Marc Philippon performed the procedure in Vail, Colo., on Thursday.