I'm 20 yrs old. Would Sliding Genioplasty enhance my weak jaw after braces?

Will having a Sliding Genioplasty performed ruin the proper allignment of my teeth? I had braces at a younger age and one of the options was to have jaw surgery in order to correct my bite, however at the time I didn't think that my small jaw would be noticeable. At the age of 20 now I want to enhance my weak jaw both vertically and horizontally and I know that chin implants don't effect the vertical chin length.