Depth Transitions of the Frontal Branch of the Facial Nerve: Implications in SMAS rhytidectomy.

ABSTRACT:

Background

Anatomy of the frontal branch of the facial nerve relative to the zygomatic arch and the superficial musculoaponeurotic system (SMAS) has been well described. The variability centers on the location where the frontal branch traverses from a deeper to more superficial plane in the SMAS. The goal of this study is to examine the depth transition of the frontal branch of the facial nerve relative to the zygomatic arch with hopes of pinpointing a caution zone for dissection to avoid nerve injury.

Methods

The frontal branch of the facial nerve was dissected in 36 hemifacial fresh cadaver specimens. Pitanguy's line, the zygomatic arch, and temporal crest were marked. Measurements were taken from the zygomatic arch to the location where the frontal branch pierced the temp

SUBMITTER: Pankratz J 

PROVIDER: S-EPMC7680882 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature