Will Sliding Genioplasty Tighten Up the Neck Area? Or Will I Need Neck Lipo?

This is a great question. Both chin implants and sliding genioplasty will typically improve the neckline. However, the improvement in some patients is inadequate. Thus, I will often perform liposuction of the chin/ jaw area to further refine the profile appearance. It is hard to say without reviewing your photos but these procedures are commonly combined for best results. I hope this information is helpful.Stephen Weber MD, FACS

A sliding genioplasty or a chin implant will only slightly improve the neck.  If additional improvement in the neck is desired, then liposuction or a neck lift are required

Depending upon the amount of movement with the sliding genioplasty, it will help to smooth out the neckline better than an implant because it lengthens both the bone and the muscles while an implant merely pushes out the soft tissue chin pad. But based on how much fat is in your neck, if any, you can hedge your bet on the result by doing neck liposuction at the same time.