Genioglossus advancement (GA) is a surgical procedure or sleep surgery in which the base of the tongue is pulled forward.
[1] It is usually to increase airway size due to deformity or a sleep breathing disorder.
This procedure is frequently performed with either uvulopalatopharyngoplasty or maxillomandibular advancement surgeries.
Tongue muscles (genioglossus, geniohyoid and others) are attached to the lower jaw below the teeth.
During a genioglossus advancement procedure, a small window or bone cut is made in the front part of the lower jaw (mandible) at the level of the geniotubercle which is where the genioglossus muscle is attached.