Looks like the surgery was successful- from the sound of it EB will be able to walk without a boot or cast in 3 months. Here's the Clipper Press Release:
Los Angeles Clippers’ forward Elton Brand underwent a successful procedure to repair a ruptured left Achilles tendon on Tuesday morning at the Christiana Care’s Wilmington Hospital in Wilmington, Delaware.
The surgery was conducted by Dr. Craig Morgan, a Wilmington-based orthopedic surgeon, who afterward consulted with Clippers’ team physician Dr. Tony Daly.
Brand will wear a cast for six weeks, replaced by a walking boot for six weeks. He will remain in the eastern United States for the next two weeks, after which he will return to Wilmington for a follow-up examination and a probable adjustment to his cast.
He will then return to Los Angeles and is expected to begin a conditioning and therapy program designed primarily to maintain flexibility. This program will be monitored by the Clippers’ medical and athletic training staff.
No timetable has been set for his return to NBA action. The Clippers will provide status updates on Brand’s progress when it is deemed necessary.