I agree with MH on the fact that at TY won't get you far to get a PGY2 spot. It may even be a long shot to get a second year spot after doing PY a couple years ago. If you are interested, you may have to go through the normal matching procedures again. I wouldn't wait until after the match to try to find yourself a 2nd year spot, or else you may be gambling with another year of your professional life. Also, most places would probably expect that you would have had a very good reason to be gone from clinical medicine for a couple years, e.g. a death in the family, to take you on. Being that the attrition rate of a lot of surgical programs is relatively high, a lot of programs would have serious second thoughts about taking on someone who skipped out of a program after one year--they would definitely see it as a serious liability. However, due to the 80-hr rule, some programs that are short on residents may be interested just to fill the spot. Especially if you can spin your absence in a good way. I think that you could probably contact your previous program's program coordinator to see if they can throw your name into the PGY-2 pool
Good luck.