The surgery to repair Hill's labrum was performed by Los Angeles Angels team physician Dr. Lewis Yocum.
"[Head athletic trainer] Richie Bancells told me it wasn't as bad as they originally had thought," said Orioles manager Dave Trembley. "There was some fraying. All [Bancells] told me last night that it wasn't as bad as everybody thought it was."
Hill went 3-3 with a 7.80 ERA in 14 appearances (13 starts) with the Orioles before he was shut down and sent to the disabled list on June 29 with left shoulder inflammation. Hill acknowledged that he had been pitching with a partial tear in his labrum that had gotten progressively worse.
In other injury news, Trembley said that Brad Bergesen (bruised left shin) is still walking with a limp, and won't start a throwing program until the limp is gone. Bergesen is eligible to come off the disabed list Friday, but it appears unlikely that he'll be ready by then.