Official Publication of the National Center for Trauma Research Trauma Monthly 2251-7464 30 6 2026 11 01 Dimensions of Intervertebral Discs, Bodies, and Foramina of Lumbar Vertebrae Based on Gender and Ethnicity Using Computed Tomography in North of Iran 1609 1616 234047 10.30491/tm.2025.490610.1785 EN Sakineh Momeni MSc, Department of Anatomical Sciences, Golestan University of Medical Sciences, Gorgan, Iran. 0000-0002-9725-9101 Kamran Haidari Associate Professor, Department of Anatomical Sciences Golestan University of Medical Sciences, Gorgan, Iran. 0000-0003-4347-5412 Mohammad Hadi Gharib Assistant Professor, Department of Radiology, Golestan University of Medical Sciences, Gorgan, Iran. Mohammad Reza Mohammadi Associate Professor, Department of Neurosurgery, Golestan University of Medical Sciences, Gorgan, Iran. Mohammad Jafar Golalipour Professor, Gorgan Congenital Malformations Research Center, Department of Anatomical Sciences, Golestan University of Medical Sciences, Gorgan, Iran. 0000-0002-0646-7096 Journal Article 2024 11 25 Introduction: Physical anthropometry, which includes the measurement of human anatomical structures such as lumbar vertebrae, is generally used to evaluate and measure human body dimensions. Its morphometry branch is used to define these structures. Today, the best standard for fusion inside the spine uses pedicular screw fixation. Objectives: This study aimed to analyze the three-dimensional tomography of the lumbar vertebrae based on gender and ethnicity in Gorgan, North of Iran. Methods: This descriptive-analytical study was performed on three different ethnical populations: Native Fars, Turkmen, and Sistani, which included 120 participants divided into three groups of 40 cases (20 females and 20 male), in the age group of 18-45 years, with the average heights of 165-180 cm for men and 165-170 cm for women. The dimensions of the intervertebral discs, bodies, and foramina of lumbar vertebrae were determined from the main axial view by coronal and sagittal reconstruction in 1.5 mm slices by a Computed Tomography (CT) scan. Results: Based on the findings, differences were observed in the dimensions of intervertebral discs, bodies, and foramina of lumbar vertebrae based on gender and ethnicity using CT between the two genders (P<0.05). The above dimensions were higher in men than in women. The evaluation of the height and width of the vertebral body based on ethnicity showed a difference only in the width of the L1 lumbar vertebrae between Native Fars and Turkmen (P<0.05). Also, there were differences in the width of the foramina in the L3, L4, and L5 vertebrae among the Native Fars, Turkmen, and Sistani groups. Conclusion: The present study found that dimensions of the intervertebral discs, bodies, and foramina of lumbar vertebrae were different based on gender and ethnicity, though, in terms of the lumbar disc, the difference was only observed in the two genders.

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