According to his doctors (via Bob Gretz at CBS Sports), he'll be fine moving forward.
"If I thought there was any increased chance of something bad happening because of the injury," he said, "I would not have come back. They tell me I'll be able to play without any more concerns than normal. As long as that's the case, I'll be on the field."
Good to hear.
Cottam didn't participate in any of the offseason program because of the injury but, if he makes the team, should be able to participate moving forward.