Mmm...I dunno that there's any point in something like that. The fog's gone so he'll change back in a couple of hours, a splint won't even fit him right after that. Plus, it's not like he broke it, he might just be able to stay off of it for a day or two and be fine...

[Hinata can just...prop him up and walk him back to the circle after he changes. Yeah, that'll work. And then Gundam can just lay down and take it easy the rest of the day.]