I understand what you are saying and yes that does seem to be the case most of the time. I think part of it comes out of the fact that quite a few ortho cases are elective and the patient isnt "sick" when they admit so admin feels they dont need the concentrated care that someone who enters "sick" does. We know that isnt the case but i think that is part of their rational.
They dont think about the elderly from LTC who come in after falls, trying to get out of bed even with broken hips, maybe needing to be fed, blood pressure problems following surgery etc. So therefore, because ALL our patients arent like this they think we dont need to staff as other floors do.