Because of my circumstances, I DID NOT do an away rotation, just did 2 at my home institution. DO NOT think it hurt my application a bit, but I was asked at almost every interview " where did you rotate", or "why did you not rotate with us?".
BE prepare to answer these questions, they will be asked. If its simply because you didnt want to go away anywhere, or you were "comfortable" at home, I dont think this goes over very well.
But I dont think it is necessary to do 3 rotations unless your application is a bit weaker and you need the exposure. 1 may be too few, three too many
> 2 may be the right number.....but then again, it depends on your circumstances.
In your case it seems like a legit explaination if you can't get away, but october is NOT too late....but by all means, rock out on the rotation you do away, or it can only hurt you!
You still have time to get to know some of your local orthopods, be sure to do so....down time scrub in, pop in the OR for interesting cases, etc....it is necessary that you get great LOR's regardless of whether or not you do any aways!
Good luck!