The LAST thing this franchise needs is another Len Bias on its hands. If Green is not 99.999% healthy, the guy should NOT be playing basketball, plain and simple. And that goes for Wilcox too.
This is why I don't buy this "rumor" (and I think that is even generous, given the source).
I think it is reasonable that insurance would be an issue. Even if Green is deemed 100% by doctors, I imagine it would be tough to get someone who had open heart surgery insured. And that would definitely complicate the fine print of a contract.
But, the C's were so careful with Green and Wilcox last year, that I find it hard to believe they would resign them, if they were not completely cleared by doctors.