期刊
AMERICAN JOURNAL OF OTOLARYNGOLOGY
卷 42, 期 4, 页码 -出版社
W B SAUNDERS CO-ELSEVIER INC
DOI: 10.1016/j.amjoto.2021.102958
关键词
Sphenoid sinus; Pneumatization; Dehiscence; Protrusion; Artery; Nerve
This study aims to investigate the correlation between SS pneumatization types and protrusion/dehiscence of adjacent neurovascular structures using CT images. The results show a clear association between different types of SS pneumatization and protrusion/dehiscence of ICA, ON, MN, and VN.
Introduction and objectives: The wide range of variability of SS pneumatization and relation with surrounding structures can result in serious complications; seeing that, the assessment of regional anatomy is essential for both surgeons and radiologists. We mainly aim to reveal the possible correlation between the SS pneumatization types and protrusion/dehiscence of the adjacent neurovascular structures in a larger population by using computerized tomography (CT) images. Methods: The type of SS pneumatization (I-IV), pneumatization of anterior clinoid process (ACP), greater wing of sphenoid (GWS), and pterygoid process (PP) was evaluated. Protrusion and dehiscence of ICA, ON, MN, and VN was noted. Results: 1003 patients were included into the study. ICA, ON, and MN protrusions were not seen in patients with the type I or II SS on both sides. These protrusions were most frequently seen along with the type IV SS on both sides (p < 0.05). ICA, ON, MN, and VN dehiscence was not found in any patients with the type I SS. The rate of ICA protrusion increased with presence of GWS and PP; ICA dehiscence was found to be positively correlated with ACP, GWS, and PP pneumatization. Conclusions: Variations, either amount or the extent, of the pneumatization of the SS are related with the presence of protrusion/dehiscence of ICA, ON, MN and VN. Knowing and reporting these relations can decrease the rate of complications during skull base surgery.
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