Since it's for ortho, it may actually matter. Not as much as med school stuff, but perhaps if 2 identical people applied, but 1 person had a higher MCAT maybe that person would be interviewed. Who knows for sure. I've discovered that I'll need to dig into my vast college past this year to apply for residency though.
From what I've seen, it's some of the really popular schools that require additional info like MCAT, undergrad transcripts and random LOR.