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1- Department of Human Anatomy and Cell Biology, Delta State University, Abraka, Nigeria.
Abstract:   (109 Views)
Introduction: The crista galli is an important landmark during endoscopic sinus and neurosurgical procedures. Pneumatization of crista galli may lead to chronic frontal sinusitis and mucocele formation that require surgical treatment. This study aimed at determining the morphological variants of crista galli in adult Nigerians.
Methods: This retrospective study was carried out at the Radiology Department of a Tertiary hospital in Nigeria following ethical approval. Archived Computed Tomography images of 336 adult patients aged 20 years and above were evaluated for the type of crista galli based on the position of its base in relation to the cribriform plate. The crista galli was also assessed for the presence of pneumatization. Data were analyzed using Statistical Package for Social Sciences Version 23. The frequencies of the variants were presented in percentages. Chi-square was used to evaluate for gender differences. A p-value of <0.05 was considered statistically significant.
Results: Type II crista galli was the most predominant (257,76.5%) followed by Type I (59,17.6%) and lastly Type III (20,6%). The prevalence of pneumatized crista galli was 28,8.3%. Pneumatization was commonly observed in the Types I and II.
Conclusion: The prevalence of the types of crista galli and its pneumatization in this study differed from some literature reports, hence the need for radiologists, otorhinolaryngologists, and neurosurgeons to recognize these variants preoperatively in our population.
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Type of Study: Original | Subject: Gross Anatomy
Received: 2021/03/24 | Accepted: 2021/06/23 | Published: 2021/09/28

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