Re: "The Dark Knight Rises" Review and Discussion Thread (spoilers)
Tony Stark takes far worse hits than Nolan's Batman, but you'll never see a doctor tell him he'll barely be able to walk again.
Which may have something to do with the fact that he's in a literal suit of titanium-alloy armor equipped with fictional repulsor technology. ( And Wayne wasn't told "you'll barely be able to walk again", he was told "don't go heli-skiing". )
You get hurt, hurt 'em back. You get killed, walk it off.