Some doctors (like Garramone) don't ever use surgical binders and always use bandages. I'm guessing the bandages afford some advantages that you wouldn't want in a regular binder, like inability to shift, tightness, and being able to prevent movement (or swelling). Others use surgical binders. I am imagining there are advantages and disadvantages each way. But you'd have to ask your surgeon why he does it his way, if he'd give away his trade secrets. LOL.
I'm guessing since I have heard how tight the ace bandages that Dr. G does, that a regular binder when not be tight enough.
--Jay