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- 저자 : John D. Koerner (검색결과 1 건)
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Correlation of Early Outcomes and Intradiscal Interleukin-6 Expression in Lumbar Fusion Patients
John D. Koerner,Dessislava Z. Markova,Greg D. Schroeder,Christopher L. Antonacci,Joseph Mendelis,Alexander R. Vaccaro,D. Greg Anderson,Chris K. Kepler 대한척추신경외과학회 2020 Neurospine Vol.17 No.1
Objective: To determine if there is correlation between intradiscal levels of interleukin-6 (IL-6) and early outcome measures in patients undergoing lumbar fusion for painful disc degeneration. Methods: Intervertebral disc tissue was separated into annulus fibrosus/nucleus pulposus and cultured separately in vitro in serum-free medium (Opti-MEM). Conditioned media was collected after 48 hours. The concentration of IL-6 was quantified using enzyme-linked immunosorbent assay. Pearson correlation coefficients quantified relationships between IL-6 levels and pre- and postoperative visual analogue scale (VAS) back pain and Oswestry Disability Index (ODI), as well as change in VAS/ODI. Results: Sixteen discs were harvested from 9 patients undergoing anterior lumbar interbody fusion (mean age, 47.4 years; range, 21–70 years). Mean preoperative and 6-month postoperative VAS were 8.1 and 3.7, respectively. Mean preoperative and postoperative ODI were 56.2 and 25.6, respectively. There were significant positive correlations between IL-6 expression and postoperative VAS (ρ=0.38, p=0.048) and ODI (ρ=0.44, p=0.02). No significant correlations were found between intradiscal IL-6 expression and preoperative VAS (ρ=-0.12, p=0.54). Trends were seen associating IL-6 expression and change in VAS/ODI (ρ=-0.35 p=0.067; ρ=-0.34, p=0.08, respectively). A trend associated IL-6 and preoperative ODI (ρ=0.36, p=0.063). Conclusion: The direct association between IL-6 expression and VAS/ODI suggests patients with elevated intradiscal cytokine expression may have worse early outcomes than those with lower expression of IL-6 after surgery for symptomatic disc degeneration.
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