Honestly, you have a lot working against you at this point. Your Step I score is only average for an ortho applicant, you're not an American grad, and you have no ortho sub-I's or LOR's.
My advice to you would be to get involved with an ortho department here in the US ASAP. You're probably not going to match ortho this year, so you might want to consider taking a year to do some ortho research to get some letters and show your commitment to the specialty. Even if you do this, the deck is still stacked against you as an FMG. If you think you might be happy doing gen surg, you might just want to go that route.
