I think our hospital goes along with the majority on this topic.
We wear masks setting up, and during the case, removing them after dressings are on, etc.
We, as a general rule don't wear them during uro cases, though the doc and scrubs do, partially for protection, being that close to the "splash zone" you know.
Ortho wise, full masks all the time. We had one of our two ortho docs leave recently. The one still here doesn't have us wear the hoods. We still have them, but currently they are dust catchers. We don't wear masks for closed reductions, and often for simple external fixators.
Stupid question: I'm full of 'em. What's a "balaclava" ??
Sounds like a desert pastry!