Can a sliding genioplasty give me this much projection and height? (Photo)

Either an implant or a sliding genioplasty can achieve the amount of horizontal chin projection you have shown. The only advantage to the sliding genioplasty is that it pulls the muscles under the jawline forward with the bone. That will help with your neck contour concerns (with liposuction).  A chin implant does not change or lengthen the upper neck musculature.

Jaw surgery is probably the best option. A second option is to have chin implant or sliding genioplasty. You can advance the chin 7-8mm with sliding genioplasty.

hi,please check with your dentist or an orthodontist that you don't actually need an osteotomy to bring your whole jaw forward rather than just your chin. if you have a malocclusion (the way your teeth fit together) you may be better off with this option and it would help with your submandibular concerns also. best of luck.julian

the genioplasty can certainly accomplish that type of result properly done. The area under the chin will 'flatten' with the tension of the advancing bone on the underlying muscle; and look improved. An implant will not be as suitable