The temporal branch of the facial nerve was examined in eight cadav
er dissections. Number oframi crossing the zygomatic arch and their loca
tion with respect to bone and soft-tissue landmarks were'estimated. The
temporal branch travelled in a constant plane along the under surface of
the temporoparietal fascia and was superficial as it crossed-the zygomat
ic arch. Based on these relationships, a safe method of dissection within
the temporal region was formulated. In five cases with retromandibular
parotid neoplasms, the seventh cranial nerve was located through retro
grade 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 zygo
matic 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 |
