Is It Possible To Fix An Overcorrected Otoplasty Surgery From 16 Years Ago?

Revision otoplasty is a much less common procedure as it is rare for people to seek under correction of their previously pinned back ears. They assessment requires a thorough examination as there are different techniques that the original surgeon could have employed to achieve the results and the ones involving cutting the cartilage are more difficult to reverse versus the suture techniques that are easier to adjust and reverse in future. That is one of the reasons I almost exclusively use suture techniques in my otoplasty surgeries to also account for such future considerations too. The good news is that in the hands of experienced otoplasty surgeons at least some improvements can be expected regardless of the original technique.

There are several different ear operations and different things that can be done so a lot depends on specifically what kind of surgery you had and what was done to the cartilage. In general, typically the ears will not be fully pulled around like a non-operated ear after any otoplasty.
If it does not settle or improve to your satisfaction, I would recommend that you see a board-certified plastic surgeon in your area that is a member of both ASPS & ASAPS and performs a lot of otoplasty surgery if you want a second opinion and of course, make sure you follow up with your own surgeon and talk about this if you have concerns that linger. 
I hope this helps and wish you all the best in your surgery and event. If it does, please take a moment to up vote this answer on the “respond” button on the top right.  

Thank you for your question and for your photos. Based on your photos provided, you are an ideal candidate for revision otoplasty. I would advise you to schedule a consultation with a board certified plastic surgeon for a detailed examination to discuss all possible treatment options and what your expectations are.