Stauffer interviewed him awhile back and it answered a lot of questions I had about his injury. What I do know is he's been working out like mad, and kept in great shape while he was not playing. Like hitting the gym and bike hard.
The effected area on his skin needed time to heal, and that required him not to skate at all until this happened. Also he was going to meet with his skate company over the summer and design a skate that wont chaff on the effected area. His return last season was postponed cause that area of skin needed time to thicken and playing hockey was not going to help it. This injury he had did not do anything to his ankle muscles, so comparisons to Whitney are not accurate, the only thing that was keeping him back was the thickness of the skin they gouged out when they cut out the Staph infection.
My guess Oscar will be back this season better than ever.