When this mix was initiated, several hospital employees from other units were worried about the unit having male patients on the floor, even tho they were on the other hallway. Personally, I don't think a male THR/THK is going to jump out of bed to bother the female patients on the other side, I would actually be more worried about the young male "insperminators" and their ahem "celebrating buddies" wandering in to a wrong room.
I think Kiringat wins for the worst mix....prisoners and peds overflow. Yikes.
For the record my first job was ortho-neuro for 8 years as an rn then AHN. I left because they added acute detox to our unit and that was something I did not want to deal with due to personal reasons. Of course back in the 70's our ortho cases consisted of carpel tunnels who stayed 4 days with their arms elevated, laminectomies who were on bedrest for days afterwards, assorted fractures, and we were just starting to do total hips and knees.