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Dr Pallavan P Udhayabharathi G Sadyojata M Mannar Mannan P Balamurugan S

Abstract

Background: Anterior clinoid process and sphenoid ridge are well-studied anatomical structures. However, there is limited research investigating their sexual dimorphism and differences by side. Objectives: To analyse the gender and side variations in anterior clinoid process and sphenoid ridge measurements. The baseline measurements of anterior clinoid process and sphenoid ridge in south Indian population and structural variations were obtained. Methods: This was a prospective human cadaver study conducted at the Department of Forensic Medicine and Department of Neurosurgery, Government Stanley Medical College, Chennai, Tamil Nadu, India between July 2018, and December 2018 among all autopsies that required examination of cranium. The present study included a total of 30 autopsies, consecutively (non-probability sampling technique). Results: The mean (SD) age was 38.60 years (12.31). Majority were between 31 and 40 years of age. Majority of the autopsies were of males (80.0%) and more than two third autopsies (70.0%) had sharp sphenoid ridge. The most common type of anterior clinoid process was type IIIb (66.7%) followed by type II (20.0%). The rarest was type I (3.3%). We found no gender-based variation in the morphometric parameters of anterior clinoid process and sphenoid ridge. However, the parameter values were significantly higher on the right side than the left side (p < 0.05) except for the distance between the sphenoid ridge and inner border of superior orbital ridge of frontal bone. Conclusion: The findings of this study can potentially contribute to improving surgical outcomes and developing sex-specific surgical techniques.

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Keywords

Anterior clinoid process, sphenoid ridge, morphometry, India neurosurgery

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