During the three months of ortho that I've done this year (all at major academic centers in the US), I?ve never heard of this. Sometimes we would squirt a bit of saline in there while we were sawing, but I don't think thermal injury was a major concern. In fact, I've never used a hand saw before. Every one that I've worked with has used the power saw for joint replacements, amputations, and all other cases where sawing was required. Might be different at some places though.
