https://www.seattlefacial.com/procedures/neckliftandlipo.html

The neck lift procedure is designed for people who have excess fatty deposits in the neck, but have good skin tone and are not yet ready for a full face-neck lift. This operation includes liposuction of the neck, manual removal of fat underneath the platysma muscle, and tightening of the platysma muscle under the chin. Excess skin cannot be removed with this procedure. If excess skin is the issue, then a full lower face-neck lift should be performed.

A one inch incision is placed just under the chin, and the skin is elevated off of the fat and muscle. A 3mm cushion of fat is left on the skin, and then the fat is liposuctioned down to the . Taking fat from the neck is also done by manually removing fat from underneath the platysma muscle. Once the fat is removed, the muscles are tightened and any neck cords are released. The incision is then closed with 3-4 sutures. Drains are also used to remove any excess fluid or blood and are taken out in 1 or 2 days after the surgery.