Aggressive neck improvement generally requires the need to tend to excess laxity of skin and the platysma muscle, a very thin muscle that runs along the chin and jawline to the collarbone. With an under the chin incision, the middle portion of the platysma can be sutured together to tighten the central neck. Because the platysma does run almost to the ears, the surgeon can elevate the muscle by pulling the platysma laterally to suture it to a higher position, giving a tighter appearance. A combination of different approaches or one approach might work best for you depending on your physical exam and desired results.
Written by Dr. Halaas