TY  - JOUR
T1  - Asterion yerleşiminin posterolateral intrakraniyal girişimler açısından morfometrik değerlendirilmesi
TT  - Morphometric evaluation of localisation of asterion for intracranial approaches posterolaterally
AU  - Çırpan, Sibel
AU  - Yonguç, Gökşin Nilüfer
AU  - Sayhan, Salih
AU  - Eyüboğlu, Canan
AU  - Güvençer, Mustafa
PY  - 2019
DA  - June
DO  - 10.19161/etd.442590
JF  - Ege Tıp Dergisi
JO  - EJM
PB  - Ege Üniversitesi
WT  - DergiPark
SN  - 1016-9113
SP  - 108
EP  - 114
VL  - 58
IS  - 2
LA  - tr
AB  - Amaç: Beyin cerrahisinde, fossa craniiposterior’a ulaşmayı gerektiren cerrahi girişimlerde, cranium’a giriş noktası yüzeyel anatomik belirgin noktalarınyardımıyla belirlenir. Asterion’un, cranium’un posteroateralinde kemikyüzeyindeki belirgin noktalar ve sulcussinus transversi (SST), sulcus sinussigmoidei (SSS) veya bunlara ait bileşke ile olan ilişkisinin morfometrikolarak incelenmesi amaçlandı.Gereç ve Yöntem:Çalışmada, Dokuz Eylül Üniversitesi Tıp FakültesiAnatomi Anabilim Dalı Laboratuvarı kemik koleksiyonunda mevcut, yaşı vecinsiyeti bilinmeyen 172 adet erişkine ait bütün kuru kemik cranium’lar ile 10 adet calvaria’sı kaldırılmış kuru kemik cranium’lar değerlendirildi. Ölçümler0.01 mm’ye duyarlı dijital kumpas ve 1 mm’ye duyarlı mezura kullanılarakyapıldı.Bulgular: Asterion-inion 61,61±4,08 mm, asterion-processusmastoideus 47,81±5,09 mm, asterion-Henleçıkıntısı 41,63±3,95 mm, asterion-opisthion61,71±3,69 mm, asterion-processuszygomaticus’un kökü sağda 55,11±3,86 mm, solda 54,37±4,35 mm olarakölçüldü. Calvaria’sı kaldırılmış kurukemik cranium’larda asterion’un dört cranium’da bilateral, bir cranium’daunilateral sol tarafta SST içinde olduğu, diğerlerinde SSS-SST bileşkesi içindelokalize olduğu gözlendi.Sonuç: Asterion, SST, SSS veya bunlara ait bileşkenin içinde yer aldığı ve asterion’un izdüşümü hizasında sinusyapılara ait oluk genişliğinin 10,25±2,18 mm olduğu saptandı. Asterion’dan yaklaşık 10 mm üstü vealtının girişim açısından sinustransversus veya sinus sigmoideusyaralanma riski taşıyacağı için, fossacranii posterior’a yapılacak cerrahi girişimlerde, yüzeyel belirginnoktaların yardımıyla asterion’unyerinin belirlenmesi, venöz sinüslerin korunmasını sağlayabilir.
KW  - Asterion
KW  - cranium
KW  - kraniyotomi
KW  - sulcus sinus sigmoidei
KW  - sulcus sinus transversi.
N2  - Aim: In neurosurgery, surgical approaches that requireaccess to fossa crani posterior is done with the help of superficial anatomiclandmarks to determine the entrance point. It was aimed to morphometrically examineasterion and its relation with superficial landmarks in the postero-lateralaspect of cranium, groove for transverse sinus (GTS), groove for sigmoid sinus(GSS) and GTS-GSS junction.Materials and Methods: In this study, 172 dry adulthuman crania and 10 crania with removed calvaria studied which are belong toAnatomy Laboratory, School of Medicine, Dokuz Eylul University. Measurementswere performed by using a digital caliper sensitive to 0.01 mm and tape measuresensitive 1 mm.Results: Measured parameters were as asterion-inion61.61±4.08 mm, asterion-mastoid process 47.81±5.09 mm, asterion-Henle spine41.63±3.95 mm, asterion-opisthion 61.71±3.69 mm, asterion-posterior root ofzygomatic process 55.11±3.86 mm on the right side and 54.37±4.35 mm on the leftside. In crania with removed calvaria, asterion was found to be locatedbilaterally in GTS in four crania, unilaterally on left side in one cranium andin others in GTS-GSS complex.Conclusion: Asterion takes place withinthe GSS, GTS or its junction. At the projection point of asterion width of thegroove related to venous sinuses was determined as 10.25±2.18 mm. Determinationof location of asterion with the help of superficial landmarks may provideprotection of venous sinuses during surgical procedures performed in posteriorcranial fossa, since transverse or sigmoid sinus will be at risk of injury 10mm above or below from the asterion.
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UR  - https://doi.org/10.19161/etd.442590
L1  - https://dergipark.org.tr/tr/download/article-file/690541
ER  -