Browsing by Author "Dagtekin, Ahmet"

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    Evaluation of the origin and branching patterns of the iliolumbar artery and its implications on pelvic and vertebral surgery
    (SAUDI MED J, 2016-01-01) Koc, Turan; Gilan, Ismail Y.; Aktekin, Mustafa; Kurtoglu, Zeliha; Dagtekin, Ahmet; Aytac, Gunes; Cosgun, Erdal
    Objectives: To evaluate the origin, distribution pattern, branches, and neighboring structures of the iliolumbar artery (ILA) concerning the anterolateral surgical approaches to the spine. Methods: This study was performed in the Anatomy Department of Medical School, Mersin University, Mersin, Turkey between 2014 and 2015. Pelvises of 11 male formalin-fixed human cadavers were dissected by anterior and posterior approaches under surgical microscope. The origins, distribution patterns, calibers, and distances to certain structures were measured. Results: The ILA was found as a single trunk on 17 sides arising either from the IIA (12 sides, 70.6\%) or the PT (5 sides, 29.4\%). The average caliber of those originated from the posterior trunk was significantly larger (p=0.010). The ILA started as a single trunk in 17 sides, while its lumbar and iliac branches separately originating from different arteries in 4 sides. The close relation of the posterior rami of both the lumbar and iliac branches with transverse process and spinal nerve were noted. Conclusion: Findings suggest that the ILA and its branches may have different and significant patterns, which may be crucial to consider during certain surgical procedures, such as far lateral disc herniation and posterior pelvic fixations.
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    The Comparison of the Right and Left Sigmoid Sinus Cross-Sectional Areas in Fetal Period and the Factors Affecting the Venous Dominance
    (AVES, 2019-01-01) Ozalp, Hakan; Aktekin, Mustafa; Hamzaoglu, Vural; Vayisoglu, Yusuf; Karatas, Mehmet Ali; Karsiyaka, Dilan; Uzmansel, Deniz; Arpaci, Rabia Bozdogan; Cayan, Filiz; Eti, Can Mehmet; Kanik, Arzu; Baskan, Fuat Cem; Aladag, Zeynep Cansu; Ertas, Elif; Dagtekin, Ahmet; Avci, Emel; Bagdatoglu, Celal; Talas, Derya Umit
    OBJECTIVES: Skull base is an important and a challenging area for surgeons. Success in skull base surgery depends on various factors such as pre-operative evaluation, appropriate surgical technique, anesthesia duration, intraoperative neuromonitorization and wound care. MATERIALS and METHODS: This study was performed in the Anatomy dissection laboratory of M.U. Medical Faculty (Ethical committee approval number 2010-103). Twelve fetuses between 17-33 gestational weeks fixed with formaldehyde were enrolled to the study. RESULTS:This study was planned to investigate the cross sectional areas of the sigmoid sinus in three levels to compare the right-left sides and the probable relationship among the levels in fetuses to further delineate the developmental factors on jugular foramen asymmetry. The cross-sectional measurements of sigmoid sinus lumen were done on 3 levels which are described as A1 level