Background: The purpose of this study is to determine whether preoperative facet fluid on MRI can help predict segmental instability (SI) after decompression surgery.
Methods: We analyzed 34 patients (14 men and 20 women, a total of 37 segments) who underwent decompression for degenerative lumbar spinal stenosis from June 2011 to August 2019 at a single institution. Mean age at the time of operation was 67.8. Postoperative assessment was performed uniformly 12 months (11~15 months) after the surgery. Preoperative facet fluid on MRI, pre- and postoperative slip percentage, and segmental motion on lumbar lateral neutral and flexion-extension (LFE) radiographic images were measured. Visual Analog Scale (VAS) and necessities of interventional procedure or medication was also assessed for clinical outcomes.
Results: No significant association was found between preoperative facet fluid indices and pre- or postoperative slip percentage (P=0.134) and segmental motion (P=0.936). There were no significant association also between facet fluid indices and VAS of back or leg (P=0.997 and P=0.437 respectively).
Conclusions: Preoperative facet fluid is not a predictive index of postoperative segmental instability or clinical outcome. Without segmental instability on LFE radiographic images, the presence of facet fluid in MRI is not an absolute indication for fusion.
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http://dx.doi.org/10.23736/S0390-5616.22.05654-5 | DOI Listing |
Oper Neurosurg (Hagerstown)
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Department of Neurosurgery, Medical Center - University of Freiburg, Freiburg, Germany.
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School of Chemical Engineering, University of Birmingham, Edgbaston, Birmingham B152TT, UK.
Understanding biofilm rheology is crucial for industrial and domestic food safety practices. This comprehensive review addresses the knowledge gap on the rheology of biofilm. Specifically, the review explores the influence of fluid flow, shear stress, and substrate properties on the initiation, structure, and functionality of biofilms, as essential implications for food safety.
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Department of Chemical Engineering and Materials Science, Wayne State University, 6135 Woodward Avenue, Rm 1413, Detroit, MI, 48202, USA.
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First Department of Psychiatry, "Aiginition" Hospital, School of Medicine, National and Kapodistrian University of Athens, 11528 Athens, Greece.
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Department of Spine Surgery, The Second Hospital of Shandong University, Jinan, China.
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