MRI assessment of paraspinal muscles in patients with acute and chronic unilateral low back pain
To investigate the changes in paraspinal muscle cross-sectional area (CSA) and composition, using the digital data from lumbar spine MRIs of patients with acute and chronic low back pain (LBP). In total, 178 patients with unilateral LBP who had lumbar MRI examination were recruited. The data were ob...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Wan, Q [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2015 |
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| Systematik: |
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| Übergeordnetes Werk: |
Enthalten in: The British journal of radiology - Oxford : Oxford University Press, 1928, 88(2015), 1053 |
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| Übergeordnetes Werk: |
volume:88 ; year:2015 ; number:1053 |
| Links: |
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| DOI / URN: |
10.1259/bjr.20140546 |
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OLC1964098386 |
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| 520 | |a To investigate the changes in paraspinal muscle cross-sectional area (CSA) and composition, using the digital data from lumbar spine MRIs of patients with acute and chronic low back pain (LBP). In total, 178 patients with unilateral LBP who had lumbar MRI examination were recruited. The data were obtained by a retrospective documentation audit. The CSAs and mean signal intensities of the bilateral paraspinal muscles [psoas major (PM), quadratus lumborum, multifidus (MF) and erector spinae (ES)] were measured, and the percentage of fat infiltration was calculated. The data between the painful side and non-painful side were compared, and between-group comparisons were tested. 42 patients with chronic unilateral LBP could indicate the problem level, and the CSA and mean signal intensity of the MF muscle were analysed at the problem level, and one vertebral above and one vertebral level below the problem level. The CSAs of the PM and ES muscles were significantly decreased in the acute LBP group, while in the chronic LBP group, significant reduction in CSA was found in the MF and ES muscles on the painful side compared with the non-painful side. The mean signal intensity and fat content of the ES muscle on the painful side in the chronic LBP group was significantly higher than that on the painful side in the acute LBP group. The significant decrease of CSA in the MF muscle was found at multiple levels on the painful side. The present findings show that there is selective ipsilateral atrophy of paraspinal muscles, specific to the symptomatic side, in patients with acute and chronic LBP. The reduction of the muscle CSA and increased fatty infiltration occurred synchronously, and the extent of change is significantly greater in chronic LBP in the ES muscle. Atrophy of the MF muscle appears to be at multiple levels but side specific in relation to symptoms in patients with chronic LBP, and the decreased muscle CSA may occur prior to fatty infiltration. There are specific paraspinal muscles undergoing atrophy and fatty infiltration in patients with acute and chronic LBP on the symptomatic side. The CSA of the MF muscle decreased at multiple levels on the symptomatic side in patients with chronic unilateral LBP, which may occur prior to fatty infiltration. | ||
| 650 | 4 | |a Lumbar Vertebrae - pathology | |
| 650 | 4 | |a Paraspinal Muscles - pathology | |
| 650 | 4 | |a Low Back Pain - pathology | |
| 650 | 4 | |a Acute Pain - pathology | |
| 650 | 4 | |a Chronic Pain - pathology | |
| 700 | 1 | |a Lin, C |4 oth | |
| 700 | 1 | |a Li, X |4 oth | |
| 700 | 1 | |a Zeng, W |4 oth | |
| 700 | 1 | |a Ma, C |4 oth | |
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10.1259/bjr.20140546 doi PQ20160617 (DE-627)OLC1964098386 (DE-599)GBVOLC1964098386 (PRQ)c961-715d808a2bfc8ac981a9f89d2276b1f1a9688b67fb8f44a45fc9f09e1f258dd0 (KEY)0026188220150000088105300000mriassessmentofparaspinalmusclesinpatientswithacut DE-627 ger DE-627 rakwb eng 610 DNB XA 34700 AVZ rvk 44.64 bkl 44.40 bkl Wan, Q verfasserin aut MRI assessment of paraspinal muscles in patients with acute and chronic unilateral low back pain 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier To investigate the changes in paraspinal muscle cross-sectional area (CSA) and composition, using the digital data from lumbar spine MRIs of patients with acute and chronic low back pain (LBP). In total, 178 patients with unilateral LBP who had lumbar MRI examination were recruited. The data were obtained by a retrospective documentation audit. The CSAs and mean signal intensities of the bilateral paraspinal muscles [psoas major (PM), quadratus lumborum, multifidus (MF) and erector spinae (ES)] were measured, and the percentage of fat infiltration was calculated. The data between the painful side and non-painful side were compared, and between-group comparisons were tested. 42 patients with chronic unilateral LBP could indicate the problem level, and the CSA and mean signal intensity of the MF muscle were analysed at the problem level, and one vertebral above and one vertebral level below the problem level. The CSAs of the PM and ES muscles were significantly decreased in the acute LBP group, while in the chronic LBP group, significant reduction in CSA was found in the MF and ES muscles on the painful side compared with the non-painful side. The mean signal intensity and fat content of the ES muscle on the painful side in the chronic LBP group was significantly higher than that on the painful side in the acute LBP group. The significant decrease of CSA in the MF muscle was found at multiple levels on the painful side. The present findings show that there is selective ipsilateral atrophy of paraspinal muscles, specific to the symptomatic side, in patients with acute and chronic LBP. The reduction of the muscle CSA and increased fatty infiltration occurred synchronously, and the extent of change is significantly greater in chronic LBP in the ES muscle. Atrophy of the MF muscle appears to be at multiple levels but side specific in relation to symptoms in patients with chronic LBP, and the decreased muscle CSA may occur prior to fatty infiltration. There are specific paraspinal muscles undergoing atrophy and fatty infiltration in patients with acute and chronic LBP on the symptomatic side. The CSA of the MF muscle decreased at multiple levels on the symptomatic side in patients with chronic unilateral LBP, which may occur prior to fatty infiltration. Lumbar Vertebrae - pathology Paraspinal Muscles - pathology Low Back Pain - pathology Acute Pain - pathology Chronic Pain - pathology Lin, C oth Li, X oth Zeng, W oth Ma, C oth Enthalten in The British journal of radiology Oxford : Oxford University Press, 1928 88(2015), 1053 (DE-627)129077976 (DE-600)2982-8 (DE-576)014410524 0007-1285 nnns volume:88 year:2015 number:1053 http://dx.doi.org/10.1259/bjr.20140546 Volltext http://www.ncbi.nlm.nih.gov/pubmed/26105517 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_24 GBV_ILN_74 GBV_ILN_170 GBV_ILN_4012 GBV_ILN_4219 GBV_ILN_4305 XA 34700 44.64 AVZ 44.40 AVZ AR 88 2015 1053 |
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10.1259/bjr.20140546 doi PQ20160617 (DE-627)OLC1964098386 (DE-599)GBVOLC1964098386 (PRQ)c961-715d808a2bfc8ac981a9f89d2276b1f1a9688b67fb8f44a45fc9f09e1f258dd0 (KEY)0026188220150000088105300000mriassessmentofparaspinalmusclesinpatientswithacut DE-627 ger DE-627 rakwb eng 610 DNB XA 34700 AVZ rvk 44.64 bkl 44.40 bkl Wan, Q verfasserin aut MRI assessment of paraspinal muscles in patients with acute and chronic unilateral low back pain 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier To investigate the changes in paraspinal muscle cross-sectional area (CSA) and composition, using the digital data from lumbar spine MRIs of patients with acute and chronic low back pain (LBP). In total, 178 patients with unilateral LBP who had lumbar MRI examination were recruited. The data were obtained by a retrospective documentation audit. The CSAs and mean signal intensities of the bilateral paraspinal muscles [psoas major (PM), quadratus lumborum, multifidus (MF) and erector spinae (ES)] were measured, and the percentage of fat infiltration was calculated. The data between the painful side and non-painful side were compared, and between-group comparisons were tested. 42 patients with chronic unilateral LBP could indicate the problem level, and the CSA and mean signal intensity of the MF muscle were analysed at the problem level, and one vertebral above and one vertebral level below the problem level. The CSAs of the PM and ES muscles were significantly decreased in the acute LBP group, while in the chronic LBP group, significant reduction in CSA was found in the MF and ES muscles on the painful side compared with the non-painful side. The mean signal intensity and fat content of the ES muscle on the painful side in the chronic LBP group was significantly higher than that on the painful side in the acute LBP group. The significant decrease of CSA in the MF muscle was found at multiple levels on the painful side. The present findings show that there is selective ipsilateral atrophy of paraspinal muscles, specific to the symptomatic side, in patients with acute and chronic LBP. The reduction of the muscle CSA and increased fatty infiltration occurred synchronously, and the extent of change is significantly greater in chronic LBP in the ES muscle. Atrophy of the MF muscle appears to be at multiple levels but side specific in relation to symptoms in patients with chronic LBP, and the decreased muscle CSA may occur prior to fatty infiltration. There are specific paraspinal muscles undergoing atrophy and fatty infiltration in patients with acute and chronic LBP on the symptomatic side. The CSA of the MF muscle decreased at multiple levels on the symptomatic side in patients with chronic unilateral LBP, which may occur prior to fatty infiltration. Lumbar Vertebrae - pathology Paraspinal Muscles - pathology Low Back Pain - pathology Acute Pain - pathology Chronic Pain - pathology Lin, C oth Li, X oth Zeng, W oth Ma, C oth Enthalten in The British journal of radiology Oxford : Oxford University Press, 1928 88(2015), 1053 (DE-627)129077976 (DE-600)2982-8 (DE-576)014410524 0007-1285 nnns volume:88 year:2015 number:1053 http://dx.doi.org/10.1259/bjr.20140546 Volltext http://www.ncbi.nlm.nih.gov/pubmed/26105517 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_24 GBV_ILN_74 GBV_ILN_170 GBV_ILN_4012 GBV_ILN_4219 GBV_ILN_4305 XA 34700 44.64 AVZ 44.40 AVZ AR 88 2015 1053 |
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10.1259/bjr.20140546 doi PQ20160617 (DE-627)OLC1964098386 (DE-599)GBVOLC1964098386 (PRQ)c961-715d808a2bfc8ac981a9f89d2276b1f1a9688b67fb8f44a45fc9f09e1f258dd0 (KEY)0026188220150000088105300000mriassessmentofparaspinalmusclesinpatientswithacut DE-627 ger DE-627 rakwb eng 610 DNB XA 34700 AVZ rvk 44.64 bkl 44.40 bkl Wan, Q verfasserin aut MRI assessment of paraspinal muscles in patients with acute and chronic unilateral low back pain 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier To investigate the changes in paraspinal muscle cross-sectional area (CSA) and composition, using the digital data from lumbar spine MRIs of patients with acute and chronic low back pain (LBP). In total, 178 patients with unilateral LBP who had lumbar MRI examination were recruited. The data were obtained by a retrospective documentation audit. The CSAs and mean signal intensities of the bilateral paraspinal muscles [psoas major (PM), quadratus lumborum, multifidus (MF) and erector spinae (ES)] were measured, and the percentage of fat infiltration was calculated. The data between the painful side and non-painful side were compared, and between-group comparisons were tested. 42 patients with chronic unilateral LBP could indicate the problem level, and the CSA and mean signal intensity of the MF muscle were analysed at the problem level, and one vertebral above and one vertebral level below the problem level. The CSAs of the PM and ES muscles were significantly decreased in the acute LBP group, while in the chronic LBP group, significant reduction in CSA was found in the MF and ES muscles on the painful side compared with the non-painful side. The mean signal intensity and fat content of the ES muscle on the painful side in the chronic LBP group was significantly higher than that on the painful side in the acute LBP group. The significant decrease of CSA in the MF muscle was found at multiple levels on the painful side. The present findings show that there is selective ipsilateral atrophy of paraspinal muscles, specific to the symptomatic side, in patients with acute and chronic LBP. The reduction of the muscle CSA and increased fatty infiltration occurred synchronously, and the extent of change is significantly greater in chronic LBP in the ES muscle. Atrophy of the MF muscle appears to be at multiple levels but side specific in relation to symptoms in patients with chronic LBP, and the decreased muscle CSA may occur prior to fatty infiltration. There are specific paraspinal muscles undergoing atrophy and fatty infiltration in patients with acute and chronic LBP on the symptomatic side. The CSA of the MF muscle decreased at multiple levels on the symptomatic side in patients with chronic unilateral LBP, which may occur prior to fatty infiltration. Lumbar Vertebrae - pathology Paraspinal Muscles - pathology Low Back Pain - pathology Acute Pain - pathology Chronic Pain - pathology Lin, C oth Li, X oth Zeng, W oth Ma, C oth Enthalten in The British journal of radiology Oxford : Oxford University Press, 1928 88(2015), 1053 (DE-627)129077976 (DE-600)2982-8 (DE-576)014410524 0007-1285 nnns volume:88 year:2015 number:1053 http://dx.doi.org/10.1259/bjr.20140546 Volltext http://www.ncbi.nlm.nih.gov/pubmed/26105517 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_24 GBV_ILN_74 GBV_ILN_170 GBV_ILN_4012 GBV_ILN_4219 GBV_ILN_4305 XA 34700 44.64 AVZ 44.40 AVZ AR 88 2015 1053 |
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10.1259/bjr.20140546 doi PQ20160617 (DE-627)OLC1964098386 (DE-599)GBVOLC1964098386 (PRQ)c961-715d808a2bfc8ac981a9f89d2276b1f1a9688b67fb8f44a45fc9f09e1f258dd0 (KEY)0026188220150000088105300000mriassessmentofparaspinalmusclesinpatientswithacut DE-627 ger DE-627 rakwb eng 610 DNB XA 34700 AVZ rvk 44.64 bkl 44.40 bkl Wan, Q verfasserin aut MRI assessment of paraspinal muscles in patients with acute and chronic unilateral low back pain 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier To investigate the changes in paraspinal muscle cross-sectional area (CSA) and composition, using the digital data from lumbar spine MRIs of patients with acute and chronic low back pain (LBP). In total, 178 patients with unilateral LBP who had lumbar MRI examination were recruited. The data were obtained by a retrospective documentation audit. The CSAs and mean signal intensities of the bilateral paraspinal muscles [psoas major (PM), quadratus lumborum, multifidus (MF) and erector spinae (ES)] were measured, and the percentage of fat infiltration was calculated. The data between the painful side and non-painful side were compared, and between-group comparisons were tested. 42 patients with chronic unilateral LBP could indicate the problem level, and the CSA and mean signal intensity of the MF muscle were analysed at the problem level, and one vertebral above and one vertebral level below the problem level. The CSAs of the PM and ES muscles were significantly decreased in the acute LBP group, while in the chronic LBP group, significant reduction in CSA was found in the MF and ES muscles on the painful side compared with the non-painful side. The mean signal intensity and fat content of the ES muscle on the painful side in the chronic LBP group was significantly higher than that on the painful side in the acute LBP group. The significant decrease of CSA in the MF muscle was found at multiple levels on the painful side. The present findings show that there is selective ipsilateral atrophy of paraspinal muscles, specific to the symptomatic side, in patients with acute and chronic LBP. The reduction of the muscle CSA and increased fatty infiltration occurred synchronously, and the extent of change is significantly greater in chronic LBP in the ES muscle. Atrophy of the MF muscle appears to be at multiple levels but side specific in relation to symptoms in patients with chronic LBP, and the decreased muscle CSA may occur prior to fatty infiltration. There are specific paraspinal muscles undergoing atrophy and fatty infiltration in patients with acute and chronic LBP on the symptomatic side. The CSA of the MF muscle decreased at multiple levels on the symptomatic side in patients with chronic unilateral LBP, which may occur prior to fatty infiltration. Lumbar Vertebrae - pathology Paraspinal Muscles - pathology Low Back Pain - pathology Acute Pain - pathology Chronic Pain - pathology Lin, C oth Li, X oth Zeng, W oth Ma, C oth Enthalten in The British journal of radiology Oxford : Oxford University Press, 1928 88(2015), 1053 (DE-627)129077976 (DE-600)2982-8 (DE-576)014410524 0007-1285 nnns volume:88 year:2015 number:1053 http://dx.doi.org/10.1259/bjr.20140546 Volltext http://www.ncbi.nlm.nih.gov/pubmed/26105517 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_24 GBV_ILN_74 GBV_ILN_170 GBV_ILN_4012 GBV_ILN_4219 GBV_ILN_4305 XA 34700 44.64 AVZ 44.40 AVZ AR 88 2015 1053 |
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10.1259/bjr.20140546 doi PQ20160617 (DE-627)OLC1964098386 (DE-599)GBVOLC1964098386 (PRQ)c961-715d808a2bfc8ac981a9f89d2276b1f1a9688b67fb8f44a45fc9f09e1f258dd0 (KEY)0026188220150000088105300000mriassessmentofparaspinalmusclesinpatientswithacut DE-627 ger DE-627 rakwb eng 610 DNB XA 34700 AVZ rvk 44.64 bkl 44.40 bkl Wan, Q verfasserin aut MRI assessment of paraspinal muscles in patients with acute and chronic unilateral low back pain 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier To investigate the changes in paraspinal muscle cross-sectional area (CSA) and composition, using the digital data from lumbar spine MRIs of patients with acute and chronic low back pain (LBP). In total, 178 patients with unilateral LBP who had lumbar MRI examination were recruited. The data were obtained by a retrospective documentation audit. The CSAs and mean signal intensities of the bilateral paraspinal muscles [psoas major (PM), quadratus lumborum, multifidus (MF) and erector spinae (ES)] were measured, and the percentage of fat infiltration was calculated. The data between the painful side and non-painful side were compared, and between-group comparisons were tested. 42 patients with chronic unilateral LBP could indicate the problem level, and the CSA and mean signal intensity of the MF muscle were analysed at the problem level, and one vertebral above and one vertebral level below the problem level. The CSAs of the PM and ES muscles were significantly decreased in the acute LBP group, while in the chronic LBP group, significant reduction in CSA was found in the MF and ES muscles on the painful side compared with the non-painful side. The mean signal intensity and fat content of the ES muscle on the painful side in the chronic LBP group was significantly higher than that on the painful side in the acute LBP group. The significant decrease of CSA in the MF muscle was found at multiple levels on the painful side. The present findings show that there is selective ipsilateral atrophy of paraspinal muscles, specific to the symptomatic side, in patients with acute and chronic LBP. The reduction of the muscle CSA and increased fatty infiltration occurred synchronously, and the extent of change is significantly greater in chronic LBP in the ES muscle. Atrophy of the MF muscle appears to be at multiple levels but side specific in relation to symptoms in patients with chronic LBP, and the decreased muscle CSA may occur prior to fatty infiltration. There are specific paraspinal muscles undergoing atrophy and fatty infiltration in patients with acute and chronic LBP on the symptomatic side. The CSA of the MF muscle decreased at multiple levels on the symptomatic side in patients with chronic unilateral LBP, which may occur prior to fatty infiltration. Lumbar Vertebrae - pathology Paraspinal Muscles - pathology Low Back Pain - pathology Acute Pain - pathology Chronic Pain - pathology Lin, C oth Li, X oth Zeng, W oth Ma, C oth Enthalten in The British journal of radiology Oxford : Oxford University Press, 1928 88(2015), 1053 (DE-627)129077976 (DE-600)2982-8 (DE-576)014410524 0007-1285 nnns volume:88 year:2015 number:1053 http://dx.doi.org/10.1259/bjr.20140546 Volltext http://www.ncbi.nlm.nih.gov/pubmed/26105517 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_24 GBV_ILN_74 GBV_ILN_170 GBV_ILN_4012 GBV_ILN_4219 GBV_ILN_4305 XA 34700 44.64 AVZ 44.40 AVZ AR 88 2015 1053 |
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610 DNB XA 34700 AVZ rvk 44.64 bkl 44.40 bkl MRI assessment of paraspinal muscles in patients with acute and chronic unilateral low back pain Lumbar Vertebrae - pathology Paraspinal Muscles - pathology Low Back Pain - pathology Acute Pain - pathology Chronic Pain - pathology |
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mri assessment of paraspinal muscles in patients with acute and chronic unilateral low back pain |
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MRI assessment of paraspinal muscles in patients with acute and chronic unilateral low back pain |
| abstract |
To investigate the changes in paraspinal muscle cross-sectional area (CSA) and composition, using the digital data from lumbar spine MRIs of patients with acute and chronic low back pain (LBP). In total, 178 patients with unilateral LBP who had lumbar MRI examination were recruited. The data were obtained by a retrospective documentation audit. The CSAs and mean signal intensities of the bilateral paraspinal muscles [psoas major (PM), quadratus lumborum, multifidus (MF) and erector spinae (ES)] were measured, and the percentage of fat infiltration was calculated. The data between the painful side and non-painful side were compared, and between-group comparisons were tested. 42 patients with chronic unilateral LBP could indicate the problem level, and the CSA and mean signal intensity of the MF muscle were analysed at the problem level, and one vertebral above and one vertebral level below the problem level. The CSAs of the PM and ES muscles were significantly decreased in the acute LBP group, while in the chronic LBP group, significant reduction in CSA was found in the MF and ES muscles on the painful side compared with the non-painful side. The mean signal intensity and fat content of the ES muscle on the painful side in the chronic LBP group was significantly higher than that on the painful side in the acute LBP group. The significant decrease of CSA in the MF muscle was found at multiple levels on the painful side. The present findings show that there is selective ipsilateral atrophy of paraspinal muscles, specific to the symptomatic side, in patients with acute and chronic LBP. The reduction of the muscle CSA and increased fatty infiltration occurred synchronously, and the extent of change is significantly greater in chronic LBP in the ES muscle. Atrophy of the MF muscle appears to be at multiple levels but side specific in relation to symptoms in patients with chronic LBP, and the decreased muscle CSA may occur prior to fatty infiltration. There are specific paraspinal muscles undergoing atrophy and fatty infiltration in patients with acute and chronic LBP on the symptomatic side. The CSA of the MF muscle decreased at multiple levels on the symptomatic side in patients with chronic unilateral LBP, which may occur prior to fatty infiltration. |
| abstractGer |
To investigate the changes in paraspinal muscle cross-sectional area (CSA) and composition, using the digital data from lumbar spine MRIs of patients with acute and chronic low back pain (LBP). In total, 178 patients with unilateral LBP who had lumbar MRI examination were recruited. The data were obtained by a retrospective documentation audit. The CSAs and mean signal intensities of the bilateral paraspinal muscles [psoas major (PM), quadratus lumborum, multifidus (MF) and erector spinae (ES)] were measured, and the percentage of fat infiltration was calculated. The data between the painful side and non-painful side were compared, and between-group comparisons were tested. 42 patients with chronic unilateral LBP could indicate the problem level, and the CSA and mean signal intensity of the MF muscle were analysed at the problem level, and one vertebral above and one vertebral level below the problem level. The CSAs of the PM and ES muscles were significantly decreased in the acute LBP group, while in the chronic LBP group, significant reduction in CSA was found in the MF and ES muscles on the painful side compared with the non-painful side. The mean signal intensity and fat content of the ES muscle on the painful side in the chronic LBP group was significantly higher than that on the painful side in the acute LBP group. The significant decrease of CSA in the MF muscle was found at multiple levels on the painful side. The present findings show that there is selective ipsilateral atrophy of paraspinal muscles, specific to the symptomatic side, in patients with acute and chronic LBP. The reduction of the muscle CSA and increased fatty infiltration occurred synchronously, and the extent of change is significantly greater in chronic LBP in the ES muscle. Atrophy of the MF muscle appears to be at multiple levels but side specific in relation to symptoms in patients with chronic LBP, and the decreased muscle CSA may occur prior to fatty infiltration. There are specific paraspinal muscles undergoing atrophy and fatty infiltration in patients with acute and chronic LBP on the symptomatic side. The CSA of the MF muscle decreased at multiple levels on the symptomatic side in patients with chronic unilateral LBP, which may occur prior to fatty infiltration. |
| abstract_unstemmed |
To investigate the changes in paraspinal muscle cross-sectional area (CSA) and composition, using the digital data from lumbar spine MRIs of patients with acute and chronic low back pain (LBP). In total, 178 patients with unilateral LBP who had lumbar MRI examination were recruited. The data were obtained by a retrospective documentation audit. The CSAs and mean signal intensities of the bilateral paraspinal muscles [psoas major (PM), quadratus lumborum, multifidus (MF) and erector spinae (ES)] were measured, and the percentage of fat infiltration was calculated. The data between the painful side and non-painful side were compared, and between-group comparisons were tested. 42 patients with chronic unilateral LBP could indicate the problem level, and the CSA and mean signal intensity of the MF muscle were analysed at the problem level, and one vertebral above and one vertebral level below the problem level. The CSAs of the PM and ES muscles were significantly decreased in the acute LBP group, while in the chronic LBP group, significant reduction in CSA was found in the MF and ES muscles on the painful side compared with the non-painful side. The mean signal intensity and fat content of the ES muscle on the painful side in the chronic LBP group was significantly higher than that on the painful side in the acute LBP group. The significant decrease of CSA in the MF muscle was found at multiple levels on the painful side. The present findings show that there is selective ipsilateral atrophy of paraspinal muscles, specific to the symptomatic side, in patients with acute and chronic LBP. The reduction of the muscle CSA and increased fatty infiltration occurred synchronously, and the extent of change is significantly greater in chronic LBP in the ES muscle. Atrophy of the MF muscle appears to be at multiple levels but side specific in relation to symptoms in patients with chronic LBP, and the decreased muscle CSA may occur prior to fatty infiltration. There are specific paraspinal muscles undergoing atrophy and fatty infiltration in patients with acute and chronic LBP on the symptomatic side. The CSA of the MF muscle decreased at multiple levels on the symptomatic side in patients with chronic unilateral LBP, which may occur prior to fatty infiltration. |
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In total, 178 patients with unilateral LBP who had lumbar MRI examination were recruited. The data were obtained by a retrospective documentation audit. The CSAs and mean signal intensities of the bilateral paraspinal muscles [psoas major (PM), quadratus lumborum, multifidus (MF) and erector spinae (ES)] were measured, and the percentage of fat infiltration was calculated. The data between the painful side and non-painful side were compared, and between-group comparisons were tested. 42 patients with chronic unilateral LBP could indicate the problem level, and the CSA and mean signal intensity of the MF muscle were analysed at the problem level, and one vertebral above and one vertebral level below the problem level. The CSAs of the PM and ES muscles were significantly decreased in the acute LBP group, while in the chronic LBP group, significant reduction in CSA was found in the MF and ES muscles on the painful side compared with the non-painful side. The mean signal intensity and fat content of the ES muscle on the painful side in the chronic LBP group was significantly higher than that on the painful side in the acute LBP group. The significant decrease of CSA in the MF muscle was found at multiple levels on the painful side. The present findings show that there is selective ipsilateral atrophy of paraspinal muscles, specific to the symptomatic side, in patients with acute and chronic LBP. The reduction of the muscle CSA and increased fatty infiltration occurred synchronously, and the extent of change is significantly greater in chronic LBP in the ES muscle. Atrophy of the MF muscle appears to be at multiple levels but side specific in relation to symptoms in patients with chronic LBP, and the decreased muscle CSA may occur prior to fatty infiltration. There are specific paraspinal muscles undergoing atrophy and fatty infiltration in patients with acute and chronic LBP on the symptomatic side. The CSA of the MF muscle decreased at multiple levels on the symptomatic side in patients with chronic unilateral LBP, which may occur prior to fatty infiltration.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Lumbar Vertebrae - pathology</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Paraspinal Muscles - pathology</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Low Back Pain - pathology</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Acute Pain - pathology</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Chronic Pain - pathology</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Lin, C</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Li, X</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Zeng, W</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Ma, C</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">The British journal of radiology</subfield><subfield code="d">Oxford : Oxford University Press, 1928</subfield><subfield code="g">88(2015), 1053</subfield><subfield code="w">(DE-627)129077976</subfield><subfield code="w">(DE-600)2982-8</subfield><subfield code="w">(DE-576)014410524</subfield><subfield code="x">0007-1285</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:88</subfield><subfield code="g">year:2015</subfield><subfield code="g">number:1053</subfield></datafield><datafield tag="856" ind1="4" ind2="1"><subfield code="u">http://dx.doi.org/10.1259/bjr.20140546</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="856" ind1="4" ind2="2"><subfield code="u">http://www.ncbi.nlm.nih.gov/pubmed/26105517</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_OLC</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-PHY</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-PHA</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-DE-84</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_24</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_74</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_170</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4012</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4219</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4305</subfield></datafield><datafield tag="936" ind1="r" ind2="v"><subfield code="a">XA 34700</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">44.64</subfield><subfield code="q">AVZ</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">44.40</subfield><subfield code="q">AVZ</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">88</subfield><subfield code="j">2015</subfield><subfield code="e">1053</subfield></datafield></record></collection>
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