Lots of great previous advice.
You WONT be able to find a PGY-2 spot if you do a transitional year...and it does happen.
Be aware: a year of general surgery sucks, but be prepared to be on your A game, dont slack, work your ass off, because it will come around to kick you in the ass if you are trying to get an ortho spot and you get the rep of being a slacker or arsehole....
Get to know the ortho interns that rotate with you on the surgery service well...they can be some of your best assets. Also, find the time to scrub some of the trauma cases and check out whats going on in the ortho rooms, it pays to show interest, and people will notice.
Get involved in a research project EARLY, and I mean early. Reapplication for next year will come sooner than you think, in fact only a few months after you start you intern year. Get started trying to get a spot IMMEDIATELY after you find out you dont match. Those 3 months before starting an internship can pay off toward next year.