Abstract
The temporal branch of the facial nerve was examined in 8 corlaver
dissections (4 right & 4 left). A number of rami crossing the zygomatic
arch and their location with respect to bone and soft-tissue landmarks
were estimated. The temporal branch course follows a constant plane
along the under surface of the temporoparietal fascia and it was found to
be superficial as it crosses the zygomatic arch. Based on these relationships,
a safe method of dissection within the temporal region was formulated.
In five cases with retromanclibular parotid neoplasms, the seventh
cranial nerve was located through a retrograde exploration of its temporal
branch. The decision to resort to the identification of the temporal branch
is supported by its adequate calibre in its peripheral area, short course,
and multiple rami crossing the zygomatic arch, which enable it to be easily
located.
Retrograde or centripetal approach to facial nerve has been found to
be anatomically sound, simple to use and safe. It must be indicated when
anterograde exploration is difficult |
