Figure legends
Figure 1 Surgical approach (Supplement with Video)
A: A mucosal incision was made from the upper nasal septum to the nasal
floor along the red line. The left nasal septal mucosa was shifted to
the left limen nasi. At this time, the greater palatine artery passing
through the canalis incisivus was not dissected (white allow).
Septoplasty was performed with the vomer and perpendicular plate of the
ethmoid removed, it provided an approach route from the left nasal
cavity through the nasal septum to the sphenoid sinus.
B: A Y-shaped nasal septal mucosal incision (white dotted line) was made
from the nasal floor along the posterior edge of the nasal septum and
upper walls of the right and left choana. The left and right nasal
septal mucous membranes were laterally deviated, and the anterior walls
of the sphenoid sinus were excised until the optic nerve canal and
carotid artery prominences on both sides were in the same field of view.
C: The horizontal incision was made in the right nasal septal mucosa up
to the anterior end of the middle turbinate.
D: The silicone plate was sewn into the bilateral nostrils and it acted
as a spacer to ensure a good working space.
Figure 2 The jet stream olfactometer (JSO; Nagashima Medical
Instruments, Tokyo, Japan)
Figure 3 Results of the jet stream olfactometer test for the
study subjects (n= 27).
The X-axis represents the evaluation of the jet stream olfactometer
(JSO) in the left and right and bilateral nasal passages. The Y-axis
represents the average recognitive threshold of the JSO.
Pre-op: Preoperative olfactory function testing.
Post-op: Postoperative olfactory function testing.
a: data are presented as medians (IQRs; interquartile ranges).
*: Statistically significant difference (Wilcoxon signed-rank test).