The 24-year-old Wallaby back row star said he wouldn't risk rushing back after suffering the injury during the Brumbies' 35-6 Super Rugby win over NSW Waratahs last weekend.
Pocock opted against gambling on the radical LARS surgery which could have had him back in the frame to play the three-Test Lions series, kicking off on 22 June, preferring instead to get take his time to recover.
"I'm pleased to have the surgery out of the way. Now I need to rest up and get myself ready to start the rehabilitation process," said Pocock.
"The key thing is that I'm patient and don't try to rush back. If that means season over, in terms of playing any more rugby this year, then so be it. Once I get into the rehabilitation, we'll see how it goes."