Objectives The purpose of this study is to assess the effect of korean medicinal admission treatment for degenerative lumbar diseases with spondylolysis and analyze their radiological findings. Methods This study was performed on 25 cases' medical records of spondylolysis patients with both X-rays and MRI images. Their general characteristics, morphologies of intervertebral discs, grades of spondylolisthesis, grades of intervertebral foraminal stenosis were analyzed. The efficacy of treatment was evaluated by numeric pain rating scale (NPRS) changes and statistically assessed by paired t-test using program R Studio. Results After admission treatment, NPRS scores significantly decreased from 6.76±2.07 to 2.38±1.22 (p<0.01). Spondylolysis was associated with degenerative disc change and intervertebral foraminal stenosis at the same or adjacent vertebral level. In spondylolisthesis cases (76%), forward slippage occurred at the same level of spondylolysis in every case. Conclusions Spondylolysis could play a key role in the lumbar degenerative mechanism and korean medicinal admission treatment is effective on pain relief of degenerative lumbar diseases with spondylolysis.

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Objectives Objective of this study is to investigate the role of paraspinal muscles by examining the correlation between slip percentage (SP) of spondylolisthesis and fatty infiltration of lumbar paraspinal muscle. Methods Retrospective analysis was performed on 45 patients diagnosed with spondylolisthesis based on medical records. Using T2-weighted axial magnetic resonance imaging, cross-sectional areas (CSAs) of psoas major (PM), multifidus (MU) and erector spinae (ES) were calculated and divided by CSA of lower level vertebral body (VB). SP was measured using sagittal T2-weighted images. Correlation of SP with muscle relative cross-sectional area (RCSA) and muscle fatty infiltration by Goutallier classification was respectively analyzed using Spearman correlation. Statistic assessment conducted by Wilcoxon signed rank test and paired t-test using program GraphPad prism 5 (GraphPad Software, Inc., San Diego, CA, USA). Results Spondylolisthesis forward slip percentage by Taillard's method was negatively associated with both side MU RCSAs. No significant correlation was found between PM RCSA, ES RCSA and SP. Forward slippage was significantly correlated with fatty infiltration of lumbar paraspinal muscle measured by Goutallier classification. Conclusions This study is to understand the role of paraspinal muscle affecting spinal instability by investigating correlation between statistical deviation of lumbar muscle characters (RCSA, fatty infiltration of lumbar muscle) and SP. We found that spondylolisthesis SP is positively related to fatty infiltration of lumbar paraspinal muscle. and is negatively associated with both side MU RCSAs.

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