... inferior to the lowest part of
the bony external auditory meatus (Fig. 1 0-1 ). The average distance from the lowest point on the
external bony auditory meatus to the bifurcation of the facial ... laterally into the substance of
the parotid gland. The length of the facial nerve trunk that is visible to the surgeon is about 1,3 cm.
It divides into the...
... just
posterior to the orbital septum, ending just posterior to the orbital rim (Fig. 3 -8 ).
Figure 3 8 Scissors placed into the initial canthopexy incision to dissect in the subconjunctival plane. The
dissection ... superior limb of the tendon. An effective
method to pass this suture is to identify the superior limb of the canthal tendon first with small,
toothed...
... 6-4 Branches
of the facial nerve.
The distance from
the anterior
concavity of the
external auditory
canal to the crossing
of the zygomatic
arch (arrow) by the
temporal branch
varies from 8 to ... of Facial Nerve
The temporal branches of the facial nerve are often called the frontal branches when they reach the
supraciliary region. The nerves provide motor...
... the periosteum of the nasofrontal region (see Fig.
6-1 7). Dissection can proceed along the dorsum to the nasal tip, if necessary (Fig. 6-1 8) .
Figure 6-1 8 Dissection inferiorly to the top of the ... across the forehead from one superior temporal line to
the other. The tension throu
g
h
p
eriosteum should be 3 to 4 cm su
p
erior to the orbital rims....
... effect
of the medial pull of the alar bases on the nose (Fig. 7-7 ). Another method is to evert the tissue into
the incision area by pressing the thumb or finger into the alar facial groove (Fig. 7 -8 ). ... relationship of facial vessels to
b
one. The onl
y
tissue between them is the
p
eriosteum.
S E C T I O N
IV
TRANSORAL
APPROACHES TO THE
FACIAL SK...
...
anterior (2 mm) bands. The upper surface of the disk adapts to the contours of the fossa and
eminence of the temporal bone, and the lower surface of the disk adapts to the contour of the
mandibular ... individual to the next, and
range anywhere from 8 to 35 mm (20 mm average) anterior to the external auditory canal (Fig.
1 2-2 ) (1). Therefore, protect...
... the hair out of the
surgical field. Cotton soaked in mineral oil or antibiotic ointment may be placed into the
external auditory canal.
1 68
ALTERNATE APPROACHES
Other approaches to ... freeing the
periosteum from its lateral surface. The periosteal elevator can then be used to continue bluntly
dissecting inferiorly with the black-and-forth motion, taking ca...