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학술저널
저자정보
Kaul Rahul (School of Medical Sciences and Research Sharda University Greater Noida India) Goswami Bharat (School of Medical Sciences and Research Sharda University Greater Noida India) Kumar Khemendra (Radio Diagnosis School of Medical Sciences and Research Sharda University Greater Noida India) Jeyaraman Madhan (Department of Spine Services Indian Spinal Injuries Centre New Delhi India) Sangondimath Gururaj (Department of Spine Services Indian Spinal Injuries Centre New Delhi India) Chhabra HS (Department of Spine Services Indian Spinal Injuries Centre New Delhi India)
저널정보
대한척추외과학회 Asian Spine Journal Asian Spine Journal Vol.17 No.1
발행연도
2023.2
수록면
130 - 137 (8page)
DOI
10.31616/asj.2022.0034

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Study Design: A retrospective computed tomography (CT)-based radiological analysis.Purpose: To obtain CT-based morphometric data for the S2 alar iliac (S2AI) screw in the Indian population presenting to School of Medical Sciences and Research, Greater Noida, we used the concept of “safe trajectory” by Pontes and his colleagues in a recent study.Overview of Literature: Although previous CT-based morphometric studies on the S2AI screw have been published for a variety of ethnic groups, morphometric data specifically for the Indian population are scarce.Methods: We used the three-dimensional multiplanar reformatting software to conduct a retrospective CT analysis of 112 consecutive patients who met our exclusion criteria for various abdominal and pelvic pathologies. CT imaging planes were rotated between the S1 and S2 foramen until they matched the ideal S2AI screw trajectory, which was represented by the longest and widest iliac osseous channel observed in the axial CT section. Following the concept of a safe trajectory, S2AI screw morphometric parameters were measured on both sides of the pelvis using corresponding axial and sagittal CT images.Results: In the sagittal and transverse planes on both sides of the pelvis, females had significantly higher screw trajectory angulation than males (<i>p</i><0.001). On both sides of the pelvis, males had significantly greater iliac width, maximum screw trajectory length, and intrascrotal length than females (<i>p</i><0.001). On both sides of the pelvis, the S2AI screw entry point in females was significantly deeper than in males from the skin margin (<i>p</i><0.001).Conclusions: Based on our methodology, we discovered that the S2AI screw trajectory is significantly more caudal and lateral in females, the maximum screw length is sufficient for use in clinical practice regardless of gender, and that 8.5 mm or even larger screw diameters are feasible in the majority of the Indian population.

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