Submental Island Flap: A Technical Update.

OBJECTIVES: In recent years, the submental island flap has demonstrated decreased cost and morbidity as compared with free tissue transfer and has been widely applied to a range of head and neck defects. Several studies, however, continue to report a high rate of submental flap complications including partial necrosis and venous congestion. The object of this report is to describe a technical modification to the submental flap harvest which increases efficiency and reliability.

METHODS: Single institutional case series with chart review. The essential technical details and technique modifications of the submental flap harvest are described, and a case example is discussed.

RESULTS: Between January 2018 through January 2019, 24 submental island flaps were performed. All flaps included the mylohyoid muscle which was delineated with manual blunt dissection. Reconstructive indications included oral cavity and oropharyngeal wounds as well as facial cutaneous and lateral skullbase defects. There were no flap-related complications.

CONCLUSIONS: Manual blunt dissection of the mylohyoid muscle and its inclusion in the submental island flap increases efficiency and reliability.