Calculation of an Optic Nerve Injury Risk Profile Before Sphenoid Sinus Surgery

Çetinkaya, Erdem Atalay; Koç, Koray; Küçük, Mehmet Fatih; Koç, Pınar; Muluk, Nuray Bayar; Cingi, Cemal

doi:10.1097/scs.0000000000003239

Cited by 5 publications

(2 citation statements)

References 12 publications

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“…Our incidence rates were found compatible with the incidence ranges (70.5%–87.7% for without ACP pneumatization, 6.6%–14% for Type 1, 3.4%–12% for Type 2, and 2%–4% for Type 3) in the literature (Supplementary Table 11, Supplemental Digital Content 11, http://links.lww.com/SCS/E322). 25,33,50 We observed that ACP length, width, and angle increased depending on pneumatization, similar to Sabanciogullari et al,39 who stated that the basal width in ACPs with pneumatization was greater than without pneumatization. Our findings showed that the incidence of ACP pneumatization was affected by sex differences ( P <0.001), but not sides ( P =0.931).…”

Section: Discussionsupporting

confidence: 85%

Change in the Location of the Optic Strut Relative to the Anterior Clinoid Process Pneumatization

Adanır¹,

Ceylan

İnceoğlu³

et al. 2022

Journal of Craniofacial Surgery

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Objective: This study aimed to peruse the alteration of the position of the optic strut (OS) according to the anterior clinoid process (ACP) pneumatization. Methods: This retrospective study conducted on cone-beam computed tomography images of 400 patients with a mean age of 36.49±15.91 years. Results: Anterior clinoid process length, width, and angle were measured as 10.56±2.42 mm, 5.46±1.31 mm, and 42.56±14.68 degrees, respectively. The tip of ACP was measured as 6.60±1.50 mm away from the posterior rim of OS. In the 631 sides (78.87%) did not have ACP pneumatization. In the cases with ACP pneumatization, three different configurations were identified as follows: Type 1 in 71 sides (8.87%), Type 2 in 56 sides (7%), and Type 3 in 42 sides (5.23%). Relative to ACP, the location of OS was determined as follows: Type A in 29 sides (3.64%), Type B in 105 sides (13.12%), Type C in 344 sides (43%), Type D in 289 sides (36.12%), and Type E in 33 sides (4.12%). The spread of data related to the attachment site of OS according to the presence or absence of ACP pneumatization showed that the location of OS was affected by ACP pneumatization (P<0.001). In ACPs with pneumatization, the frequency of OS position relative to ACP was found as follows: Type A in none of sides (0%), Type B in 8 sides (7.6%), Type C in 53 sides (15.4%), Type D in 88 sides (30.4%), and Type E in 20 sides (60.6%). Conclusions: The main finding of this study was that the location of OS relative to ACP was affected by ACP pneumatization. In ACPs with pneumatization, OS was located more posteriorly compared with ACPs without pneumatization.

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Section: Discussionsupporting

confidence: 85%

Change in the Location of the Optic Strut Relative to the Anterior Clinoid Process Pneumatization

Adanır¹,

Ceylan

İnceoğlu³

et al. 2022

Journal of Craniofacial Surgery

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“…According to Abuzayed et al 23 's classification, two different types about the pneumatization were identified in CM-I group as follows: Type 2 (7.3%) > Type 1 (4.9%), and three different types were identified in the control group as follows: Type 2 (4.4%) > Type 1 (3.3%) > Type 3 (1.1%). The incidence ranges of Abuzayed et al 23 's types in this study were compatible with the literature (►Table 9), 23,41,49,60 in where the incidence ranges were given as 6.6 to 14% for Type 1, 3.4 to 12% for Type 2, and 2 to 5.23% for Type 3.…”

Section: Sellar Region In Chiari Typesupporting

confidence: 90%

Assessment of the Anterior Clinoid Process and Optic Strut in Chiari Malformation Type I: A Computed Tomography Study

Özalp

Özgüral

Alpergin

et al. 2023

J Neurol Surg B Skull Base

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Objective This study aimed to evaluate morphological features of the anterior clinoid process (ACP) and the optic strut (OS) in Chiari malformation Type I (CM-I). Methods The study universe consisted of computed tomography images of 41 CM-I patients and 45 normal subjects. Comparison of the parameters for CM-I and the control group was performed with the Student's t-test. A “p < 0.05” was accepted as the significance level. Results ACP length was smaller in CM-I than the control group (p < 0.001). In contrast to ACP length, ACP angle (p < 0.001), OS length (p = 0.022), and the distance between ACP and OS (p = 0.020) were found greater in CM-I in comparison to the control group (p < 0.05). ACP width (p = 0.233) and OS width (p = 0.376) were similar in both groups. ACP pneumatization in CM-I group was found as 12.20%, whereas in the control group as 8.90%. Two different types about the pneumatization were identified in CM-I group (Type 1: 4.9% and Type 2: 7.3%), whereas three different types in the control group (Type 1: 3.3%, Type 2: 4.4%, and Type 3: 1.1%). Relative to ACP, three different types about OS position were identified in CM-I group (Type C: 31.70%, Type D: 64.60%, and Type E: 3.70%) and the control group (Type C: 7.80%, Type D: 64.40%, and Type E: 27.80%). Conclusions Shorter ACP, wide-angled ACP, longer OS, and more anteriorly located OS were found in CM-I group compared with the normal group. Our findings showed that the pneumatization of ACP was not affected by CM-I.

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