CORRELATION BETWEEN MRI FINDINGS OF SPINAL CANAL STENOSIS, THE ANTEROPOSTERIOR DIAMETER OF THE HERNIATED DISC AND CLINICAL SYMPTOMS IN PATIENTS WITH SCIATICA

Văn Sang Nguyễn 1,2,, Văn Hiếu Vi 2
1 Department of Diagnostic Imaging, E Hospital
2 Thai Nguyen University of Medicine and Pharmacy

Main Article Content

Abstract

Purpose: Analysis of the correlation between MRI findings of spinal canal stenosis, the anteroposterior diameter of the lumbar herniated disc, and clinical symptoms in patients with sciatica. Materials and Methods: In this prospective cross-sectional study, 102 patients clinically diagnosed with sciatica underwent MRI at E Hospital from January 2025 to June 2025. Data analysis was performed using SPSS version 26.0. Results: Spinal canal stenosis and the anteroposterior diameter of the herniated disc show a moderate correlation with VAS scores. The estimated equation is: VAS = 1.595 + 0.035 × (stenosis percentage) + 0.247 × (anteroposterior diameter). Optimal cut-offs for predicting low back pain are 29.8% for stenosis and 3.15 mm for the anteroposterior diameter. Each 1% increase in stenosis raises the risk of low back pain by 1.058 times and a positive Lasègue sign by 1.072 times. Similarly, each 1 mm increase in anteroposterior diameter increases the risk of low back pain by 1.603 times and a positive Lasègue sign by 2.193 times. Conclusion: Spinal canal stenosis and the anteroposterior diameter of the herniated disc are clinically significant imaging variables.

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References

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