BACKGROUND: In 1986, Wang described the infra hyoid musculo-cutaneous flap. Here, we report technical adaptations and improvements to this flap. METHODS: From 1994 to 1996, we performed 61 infrahyoid flaps using the classical procedure. After 5 years of technical evolution, we studied a new series of 91 flaps from January 2000 to June 2002. We reviewed our experience with the infra hyoid flap and described the surgical procedure, its evolution and the impact on the fiability of the flap. RESULTS: In the two series, the main arterial pedicle was usually the superior thyroid artery. Venous drainage was more variable; consequently we always performed a modified neck dissection with preservation of the internal jugular vein. In the first series, the surgical results were good with only seven local complications essentially skin necrosis. The functional and aesthetic results seemed acceptable. In the second series, the results, after technical evolution with better venous drainage and cervical closure, wereimproved (only one necrosis) and the indications were extended. CONCLUSION: With experience, the infra hyoid myocutaneous flaps is reliable and appears as a particularly useful flap for oral cavity, oral pharynx and pharyngeo-laryngeal reconstruction.
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