Evaluation of the relationship of modic change and effusion of facet effects on clinical, functional and stability of spine in operated patients with lumbar degenerative diseases

Authors
1 Assistant Professor, Shiraz University of Medical Sciences, Shiraz, Iran
2 Assistant Professor, Kazerun Islamic Azad University of Medical Sciences. Kazerun. Iran
3 Professor, Shiraz University of Medical Sciences, Shiraz, Iran
4 Resident, Shiraz University of Medical Sciences, Shiraz, Iran
Abstract
Introduction: The aim of this study was to investigate the relationship between Modic changes and facet effusion and
its relationship with lumbar spine stability in patients who underwent surgery for degenerative disorders.
Materials and Methods: This observational study was performed on retrospectively collected data from the records of 116
patients referred to Shahid Chamran Hospital in Shiraz between 2016 and 2019. Patients' records were initially queried for demographic data, facet effusion extent, modic changes and type of operation. Patients underwent clinical examination and imaging after 6 months and spinal stability was assessed. Data analysis was performed using descriptive and inferential statistical tests.
Results: The prevalence of 6-month instability in this study was very low (1 patient, 0.86%) and the only patient with spinal instability underwent level 2 laminectomy with no discectomy nor Modic changes at the time of surgery. His facet effusion was 1.50 mm; He had a dynamic angulation of 5 mm and no dynamic translation or vacuum sign. Mean facet effusion, dynamic angulation and dynamic translation in all patients were 1.56±0.58, 5±2.67 and 3 ± 0.51 mm, respectively.
Conclusion: The findings of this study due to the very low prevalence of instability in 6-month follow-up cannot be used to draw a conclusion about the factors affecting lumbar instability and advanced studies are needed. However, the reasons for the very low prevalence of lumbar instability in this study may be related to surgical technique and a wide variety of other factors that can be compared with other studies with a higher prevalence of instability.
Keywords

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