The analysis at the time was that either he had loss of blood flow to the hip long enough to cause permanent damage... or he didn't. And if he didn't, he'd heal fine. Now they're saying he didn't, so the "worst case scenario" from the day of the injury doesn't seem to be in play any longer. Not saying there's no risk or there won't be any lingering restrictions, but that's the medical analysis i've heard.
I'm sure NFL GMs have looked into it very, very thoroughly, so if a team drafts him in the top 10, they must be convinced that he won't suffer significant long-term consequences.
...dave