The average day is from 5:30AM - 9PM? Where the hell do you go?
There seem to be two extremes going on here. On one hand, as an ortho intern I am certainly familiar with the decision of whether my love for ortho was worth the sacrifice on my personal life. On the other, I can understand the need to go "all in" once the decision to pursue ortho has been made.
Because ortho is competitive it self-selects for not only the smartest, but also the most hard working and dedicated. In fact, if residents always had the final say, they'd probably take hard workers over braniacs any day (which is why away rotations are so important in ortho). Ortho guys also tend to be team players which is why they take such offense at people who look for ways to get out of work. Furthermore, ortho guys tend to have the best reputation in the hospital and most of them want to pick guys who continue that tradition.
I agree that you don't need to go looking for extra call days or extra cases to be a hard worker. In fact, that can get obnoxious really quick. But, you should let two principles guide your work ethic: 1. your patients should always be taken care of regardless of what time that means you come in to round, or how late you stay 2. you take care of your fellow residents by helping them if they're getting slammed with call, personal issues, etc.
Because ortho is competitive, people get the idea that it's lifestyle friendly (like uro or ent). The only sense I can think of where ortho is more "lifestyle friendly" than a specialty like general surgery is the NATURE of the trauma. Certainly, there will be as much (if not more) trauma. However, very few times will the orthopaedic injuries take precedence. Of those that do, few need immediate intervention. That can translate into less being up all night when on call. Other than that, ortho surgeons work as hard as any other surgeon.
The other big difference with ortho is the job itself. If you ever rotate on a gen surg trauma service, you'll understand why general surgeons can be so crabby. The patients suck the life out of you. Not so with ortho. And, with the power to tailor your practice, you could conceivable spend the whole day doing total joints or any number of other procedures with great outcomes.
Sorry so long-winded - bottom line: make sure you know what you're getting into if you go for ortho