Cutaneous Distribution of Zygomaticofacial Nerve

Abstract

The aim of this study is to elucidate the cutaneous distribution of the zygomaticofacial nerve (ZFN). Twenty hemifaces of 10 adult Korean cadavers were dissected. ZFN-innervated limits were rectangular and each side was 18.8 ± 4 mm and 15.8 ± 3.4 mm. The center of the rectangle was located laterally at 17.3 ± 5.5 mm from the lateral canthus and then inferiorly at 18.1 ± 3.1 mm. The cutaneous area innervated by the ZFN was rectangular shaped having a horizontal side that was 9.3 ± 4% to 27.3 ± 7.5%of the line from the lateral canthus to the root of helix and a vertical side that was 13.9 ± 5.8% to 35.7 ± 5.4% of the line from the lateral canthus to the oral commissure level. Knowledge of ZFN innervation is available with an intraoral approach in maloplasty or midface lift.