Detailed anatomical analysis of the sphenoid sinus and sphenoid sinus ostium by cone beam computed tomography
Yükleniyor...
Dosyalar
Tarih
2016
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Journal of Craniofacial Surgery
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
The aim of this study is the evaluation of the anatomical
structures of sphenoid sinus ostium used as a reference point for
transsphenoidal surgery by cone beam computed tomography. The
authors’ study was performed using the cone-beam computed tomography
images of 16 to 82-year old 200 (112 female, 88 male)
patients (Newton 5G, Verona, Italy). Septum deviation of sphenoid
sinus and the distance between 2 ostia were evaluated by coronal and
axial sections, respectively. Pneumatization degree of sphenoid sinus,
diameter of sphenoid sinus ostium, and distance lower edge of superior
turbinate to sphenoid sinus ostium were measured by using sagittal
sections. The sellar type was the most common pneumatization type of
sphenoid sinus in authors’ study. While the C-type septum deviation
was observed as the most common, T-type deviation was the least
type. Sphenoid sinus ostium was bilaterally in 71.5% of individuals,
and it was not found in 10% of individuals included in the study. A
significant decrease was determined in diameter of the left sphenoid
sinus ostium with aging. The distances between 2 sphenoid sinus ostia
were 7.30 2.77 mm for women and 6.09 2.58 mm for men,
respectively. No statistical differences were found in women and
men in terms of distances between the lower edge of the right and left
superior turbinate and sphenoid sinus ostium on their sides. Consequently,
making detailed preoperative radiological evaluation of
anatomic variations of sphenoid sinus and sphenoid sinus ostium is
important in terms of guiding the surgeon in the process of a successful
transsphenoidal surgery.
Key Words: Cone-beam computed tomography, sphenoid sinus,
sphenoid sinus ostium, transsphenoidal surgery
The sphenoid sinus is a double sinus located within the body of the
sphenoid bone. Sizes, shapes, and pneumatization type vary from
person to person. The bony septum that is located in the midline
separates the 2 sinuses from each other.1 The sinus was surrounded
with many important anatomical structures, neighborhoods internal
carotid artery in the lateral wall, optic nerve at the superolateral and
pterygoid nerve (The Vidian Nerve) at the base of the spheoid sinus.2
This sinus opens sphenoethmoidal recess by sphenoid sinus ostium
that is located in the upper part of the front wall through the sphenoid
sinus.3 The diameter of sphenoid sinus ostium is 2 to 3 mm, it is
situated 11 to 14 mm above the base level of the sinus, 4 to 5 mm in
lateral of nasal septum, 30 degrees above the base of the nose.4–6 The
opening of sphenoid sinus ostium is one of the most important points
in transsphenoidal surgery for surgeons. The surgical procedure is
done by extending this opening. Closed or being in different positions
of this opening can cause difficulty during surgical procedures.7
During the endoscopic and surgical transsphenoidal approaches,
finding the ostium is not always easy. So the detection of detailed
anatomical analysis this natural way and adjacent structures prior to
transsphenoidal surgery may reduce complication incidence.
The aim of this study is the evaluation of the anatomical
structures of sphenoid sinus ostium used as a reference point for
transsphenoidal surgery by cone beam computed tomography. At
the same time, the anatomical variations and the pneumatization
status of the sphenoid sinus were examined using the same method.
Açıklama
The Journal of Craniofacial Surgery Volume 27, Number 6, September 2016.
Anahtar Kelimeler
Cone-beam computed tomography, Sphenoid sinus, Sphenoid sinus ostium, Transsphenoidal surgery
Kaynak
Journal of Craniofacial Surgery
WoS Q Değeri
Scopus Q Değeri
Cilt
27
Sayı
6
Künye
Yılmaz, N., Köse, E., Dedeoğlu, N., Çolak, C., Özbağ, D., & Durak, M. A. (2016). Detailed Anatomical Analysis Of The Sphenoid Sinus And Sphenoid Sinus Ostium By Cone Beam Computed Tomography. Journal Of Craniofacial Surgery, 27(6), 549–552.
