I did the same thing in June - flew off a bike in France on the same day Kerry flew off his. I broke my left collar bone in several places and fractured the shoulder blade as well. I now have a plate with 12 screws on the collar bone. I have been back on the bike since the beginning of September and feel no impact on riding. I was a bit surprised at how long I needed to stay away from upper body weight training -- I still am not back to it. I was also surprised at how much impact the injury/repair had on range of motion. I have been in PT for several weeks and have made a lot of progress. Definitely worth while.

Note: my doctor didn't clear me to get back on the bike until 12 weeks after surgery. I think I would have been fine on the bike sooner and suspect that the doctor was primarily concerned that I might fall again and bang the repair. I did get on a spin bike at the gym about 6 weeks after surgery to keep my cardio up.