Exploration on the relationship between the cross-sectional area of paravertebral muscles and spino-pelvic sagittal imbalance in patients with lumbar spondylolisthesis based on MRI-T2WI
10.3969/j.issn.1002-1671.2025.10.024
- VernacularTitle:基于MRI-T2WI探究腰椎滑脱患者椎旁肌横截面积与脊柱-骨盆矢状位失衡的关系
- Author:
Bo DUAN
1
;
Kewu HE
1
Author Information
1. 安徽医科大学第三附属医院 合肥市第一人民医院影像中心,安徽 合肥 230071
- Publication Type:Journal Article
- Keywords:
lumbar spondylolisthesis;
magnetic resonance imaging;
paravertebral muscle;
spino-pelvic;
sagittal imbalance
- From:
Journal of Practical Radiology
2025;41(10):1707-1710
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the relationship between the cross-sectional area of paravertebral muscles and spino-pelvic sagittal imbalance in patients with lumbar spondylolisthesis based on MRI-T2WI.Methods A retrospective analysis was conducted on the imaging data of 38 patients with lumbar spondylolisthesis(spondylolisthesis group)and the medical records of 38 patients with lumbar degeneration but without L4-L5 segments lumbar spondylolisthesis(non-spondylolisthesis group).The Annotate software was used to measure the cross-sectional areas of psoas major and erector spinae at the L4-L5 segments on the MRI-T2WI sequences in the included cases.Spino-pelvic sagittal parameters[pelvic incidence(PI),pelvic tilt(PT),sacral slope(SS),lumbar lordosis(LL)]were measured based on the lateral lumbar X-ray images.The cross-sectional areas of psoas major and erector spinae and changes in spino-pelvic sagittal parameters were compared between the two groups.According to the degree of lumbar spondylolisthesis,patients in spondylolisthesis group were divided into different subgroups(group Ⅰ and group Ⅱ).The cross-sectional areas of psoas major and erector spinae,and changes in spino-pelvic sagittal parameters were compared among patients in the subgroups.The correlation between the cross-sectional areas of psoas major and erector spinae and changes in spino-pelvic sagittal parameters were analyzed by Pearson correlation analysis.Results The cross-sectional areas of psoas major and erector spinae at the L4-L5 segments were lower in the spondylolisthesis group than in the non-spondylolisthesis group(P<0.001).In the non-spondylolisthesis group,structures of lumbar spines and its surrounding tissues were clear,the segments were continuous,there was no lumbar spondylolisthesis but there was symmetrical distribution of muscles in bilateral spines.In the spondylolisthesis group,there was spondylolisthesis and dislocation at the L4-L5 segments,a small step-like change at the posterior vertebral margin and asymmetrical distribution of muscles in bilateral spines.The PI,PT,SS and LL were higher in the spondylolisthesis group than in the non-spondylolisthesis group(P<0.001).The cross-sectional areas of psoas major and erector spinae were lower in the group Ⅱ lumbar spondylolisthesis than in the group Ⅰ(P<0.05),and the PI,PT,SS and LL were higher than in the group Ⅰ(P<0.05).The cross-sectional areas of psoas major and erector spinae in patients with lumbar spondylolisthesis were negatively correlated with PI,PT,SS and LL(P<0.05).Conclusion MRI-T2WI can be used to observe changes in the cross-sectional area of paravertebral muscles in patients with lumbar spondylolisthesis,and these changes are correlated with spino-pelvic sagittal imbalance.
