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Mazarakis NK, Demetriades AK. Baseline MRI and Its Predictive Usefulness in Chronic Backpain Thirteen Years Later. Global Spine J 2022; 12:1029-1030. [PMID: 34608811 PMCID: PMC9344516 DOI: 10.1177/21925682211049365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Affiliation(s)
- N. K. Mazarakis
- Stepping Hill Hospital, Stockport, UK,N. K. Mazarakis, Stepping Hill Hospital, Poplar
Grove, Stockport SK2 7JE, UK.
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Reliability and agreement of lumbar multifidus volume and fat fraction quantification using magnetic resonance imaging. Musculoskelet Sci Pract 2022; 59:102532. [PMID: 35245881 DOI: 10.1016/j.msksp.2022.102532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 02/08/2022] [Accepted: 02/16/2022] [Indexed: 11/21/2022]
Abstract
INTRODUCTION Magnetic resonance imaging (MRI) is the standard to quantify size and structure of lumbar muscles. Three-dimensional volumetric measures are expected to be more closely related to muscle function than two-dimensional measures such as cross-sectional area. Reliability and agreement of a standardized method should be established to enable the use of MRI to assess lumbar muscle characteristics. OBJECTIVES This study investigates the intra- and inter-processor reliability for the quantification of (1) muscle volume and (2) fat fraction based on chemical shift MRI images using axial 3D-volume measurements of the lumbar multifidus in patients with low back pain. METHODS Two processors manually segmented the lumbar multifidus on the MRI scans of 18 patients with low back pain using Mevislab software following a well-defined method. Fat fraction of the segmented volume was calculated. Reliability and agreement were determined using intra-class correlation coefficients (ICC), Bland-Altman plots and calculation of the standard error of measurement (SEM) and minimal detectable change (MDC). RESULTS Excellent ICCs were found for both intra-processor and inter-processor analysis of lumbar multifidus volume measurement, with slightly better results for the intra-processor reliability. The SEMs for volume were lower than 4.1 cm³. Excellent reliability and agreement were also found for fat fraction measures, with ICCs of 0.985-0.998 and SEMs below 0.946%. CONCLUSION The proposed method to quantify muscle volume and fat fraction of the lumbar multifidus on MRI was highly reliable, and can be used in further research on lumbar multifidus structure.
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Tarabeih N, Masharawi Y, Shalata A, Higla O, Kalinkovich A, Livshits G. Scoliosis and skeletal muscle mass are strongly associated with low back pain-related disability in humans: An evolutionary anthropology point of view. Am J Hum Biol 2022; 34:e23757. [PMID: 35533002 DOI: 10.1002/ajhb.23757] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/09/2022] [Accepted: 04/23/2022] [Indexed: 11/07/2022] Open
Abstract
OBJECTIVES To clarify the potential risk factors and etiology of low back pain (LBP)-related disability, including structural changes of the spine (spinal scoliosis) and body composition components in a population with a high prevalence of LBP. METHODS In this cross-sectional study, two self-reported validated questionnaires were used to collect back pain and disability data in an ethnically homogeneous family-based population sample (N = 1078). The scoliosis angle of trunk rotation was measured by a scoliometer on three spinal levels while the patient was bent forward. Body composition parameters, including relative to weight (WT), fat, relative skeletal muscle mass (SMM/WT), and total body water were determined by bioelectrical impedance analysis. Statistical analysis was conducted, accounting for the familial composition of the sample. RESULTS The mixed multiple regression analyses with several LBP-related phenotypes as dependent variables consistently showed significant independent associations with scoliosis and SMM/WT, irrespective of other covariates. The odds ratios (OR)/95% CI for scoliosis ranged between 1.40 (1.19-1.64) and 1.51 (1.27-1.80), and from 0.61(0.51-0.72), to 0.71(0.58-0.87) for SMM/WT, depending on the LBP phenotype. The genetic components of the respective correlations between the LBP-phenotypes and scoliosis or SMM/WT were negligible. CONCLUSIONS The associations between LBP-related conditions and postured scoliosis and SMM/WT were consistent and significant and therefore may serve as markers in predicting the development of LBP-related disability. We interpret the origin of these correlations as the evolutionary event due to the imperfect spine anatomy adaptation to a vertical posture resulting from a quick transition to bipedalism from a quadrupedal ancestor.
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Affiliation(s)
- Nader Tarabeih
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.,Maale HaCarmel Mental Health Center, Affiliated to Rappaport Faculty of Medicine, Technion, Israel Institute of Technology, Haifa, Israel
| | - Youssef Masharawi
- Department of Physical Therapy, The Stanley Steyer School of Health Professions, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Adel Shalata
- The Simon Winter Institute for Human Genetics, Bnai Zion Medical Center, The Ruth and Bruce Rappaport Faculty of Medicine, Technion, Haifa, Israel
| | - Orabi Higla
- Department of Orthopedic Surgery, Sourasky Medical Center, Tel Aviv, Israel
| | - Alexander Kalinkovich
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Gregory Livshits
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.,Adelson School of Medicine, Ariel University, Ariel, Israel
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54
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Venkatesan P, K S, Kishen TJ, Janardhan S, Kumar CR S. Comparison of yoga and dynamic neuromuscular stabilization exercise in chronic low back pain on magnetic resonance imaging of lumbar multifidus- protocol for a randomized controlled trial. Contemp Clin Trials Commun 2022; 28:100937. [PMID: 35789639 PMCID: PMC9249668 DOI: 10.1016/j.conctc.2022.100937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 04/13/2022] [Accepted: 05/25/2022] [Indexed: 11/12/2022] Open
Abstract
Background Degeneration of Lumbar muscle in chronic low back pain (CLBP) is characterized by an increase in fat infiltration of paraspinal muscle, decrease in the cross-sectional area (CSA) of lumbar multifidus muscle (LMM) and increased thickness of Thoracolumbar fascia (TLF) by 25%. The study objective is to compare the effects of yoga and dynamic neuromuscular stabilization (DNS) exercise on CSA, fat infiltration of LMM with magnetic resonance imaging (MRI), and TLF thickness using musculoskeletal ultrasound imaging (MSK-USI) in CLBP. Methods One hundred and forty-four participants with CLBP, which persisted longer than three months, will be recruited for this trial. Both group interventions focused on LMM. The experimental group will receive structured yoga sessions, and the Control Group will receive exercise based on DNS. In each group, exercises will be performed for 3–5 days/week and progressed for 12 weeks. Baseline data will be collected, followed by the recording of primary outcome measure (MRI) and secondary outcome measures (MSK-USI, Oswestry disability index, visual analogue score, optimism, self-efficacy, mood, physical activity, fear of movement, pain catastrophizing, and coping) at baseline and the end of 12th weeks. The normality of data will be verified. Based on the data distribution, within-group analysis and between-group analysis will be performed. Discussion This will be the first RCT to compare the effect of yoga and DNS exercise among chronic low back pain participants. This will provide evidence of these interventions' impact on CSA, fat infiltration of LMM, and thickness of TLF in CLBP. Registration number CTRI/2021/08/035984 (This trial was registered prospectively).
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Seyedhoseinpoor T, Taghipour M, Dadgoo M, Ebrahimi Takamjani I, Sanjari MA, Kazemnejad A, Elliott JM, Hides J. Relationship between the morphology and composition of the lumbar paraspinal and psoas muscles and lumbar intervertebral motion in people with chronic low back pain. Clin Anat 2022; 35:762-772. [PMID: 35445452 DOI: 10.1002/ca.23893] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 04/19/2022] [Accepted: 04/19/2022] [Indexed: 11/11/2022]
Abstract
Muscles of the lumbar spine play an important role in controlling segmental intervertebral motion. This study aimed to evaluate the association between lumbar intervertebral motion and changes in lumbar morphology/composition in people with chronic low back pain (CLBP). A sample of 183 patients with CLBP participated in this cross-sectional study. Participants underwent lumbar flexion-extension X-Rays to determine vertebral motion (translational and/or rotational motion) of lumbar levels (L1-L2 to L5-S1) and lumbar spine Magnetic Resonance Imaging (MRI) to quantify total and functional cross-sectional areas (CSAs) and asymmetry of the multifidus, lumbar erector spinae and psoas muscles. The relationship between morphology/composition of the muscles and lumbar intervertebral motion was investigated. Smaller total and functional CSAs of the multifidus and greater CSAs of the lumbar erector spinae muscle were observed in participants with greater intervertebral motion. Muscle asymmetry was observed at different lumbar vertebral levels. The greatest amount of translational intervertebral motion was observed at the L3-L4 level, while the greatest amount of rotational translation occurred at the L4-5 level. Associations were observed between the morphology of the paraspinal muscles at the vertebral levels adjacent to the L3-L4 level and the increased intervertebral motion at this level. Relationships between measures of muscle morphology/composition and increased segmental vertebral motion were observed. The results may provide a plausible biological reason for the effectiveness of rehabilitating deficient paraspinal muscles in a subset of people with CLBP. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Tahere Seyedhoseinpoor
- Department of Physical Therapy, School of Rehabilitation, Babol University of Medical Sciences, Babol, Iran.,Mobility impairment research center, Health institute, Babol University of Medical Sciences, Babol, Iran
| | - Mohammad Taghipour
- Department of Physical Therapy, School of Rehabilitation, Babol University of Medical Sciences, Babol, Iran.,Mobility impairment research center, Health institute, Babol University of Medical Sciences, Babol, Iran
| | - Mehdi Dadgoo
- Department of Physical Therapy, School of Rehabilitation, Babol University of Medical Sciences, Babol, Iran
| | - Ismail Ebrahimi Takamjani
- Department of Physical Therapy, School of Rehabilitation, Babol University of Medical Sciences, Babol, Iran
| | - Mohammad Ali Sanjari
- Biomechanics Lab, Rehabilitation Research Center and Department of Basic Rehabilitation Sciences, Faculty of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Anoshirvan Kazemnejad
- Department of Biostatistics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - James M Elliott
- Department of Physical Therapy and Human Movement Sciences, Northwestern University, Chicago, Illinois, USA.,Faculty of Medicine and Health, The Kolling Research Institute, The University of Sydney, the Northern Sydney Local Health District, Sydney, New South Wales, Australia
| | - Julie Hides
- School of Health Sciences and Social Work, Griffith University, Nathan Campus, Queensland, Australia
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56
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Alteration of lumbar muscle morphology and composition in relation to low back pain: a systematic review and meta-analysis. Spine J 2022; 22:660-676. [PMID: 34718177 DOI: 10.1016/j.spinee.2021.10.018] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 09/29/2021] [Accepted: 10/19/2021] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT Previous studies have proposed that there is a relationship between low back pain (LBP) and morphology and composition of paraspinal muscles. However, results have been conflicting, especially regarding fatty infiltration of muscles. PURPOSE The primary goal of this study was to review and analyze results from imaging studies which investigated morphological and composition changes in the multifidus, erector spinae and psoas major muscles in people with LBP. STUDY DESIGN/SETTING Systematic review with meta-analysis. PATIENT SAMPLE A patient sample was not required OUTCOME MEASURES: This review did not have outcome measures. METHODS PubMed, Scopus, Web of Sciences, EMBASE and ProQuest were searched for eligible studies up to 31st July 2020 (all languages). A systematic search of electronic databases was conducted to identify studies investigating the association between the morphology and fat content of lumbar muscles in people with LBP compared with a (no LBP) control group. 13,795 articles were identified. Based on the screening for inclusion/ exclusion, 25 were included. The quality of the studies was evaluated using the Newcastle-Ottawa Scale. From the 25 articles, 20 were included in the meta-analysis. RESULTS Results showed that the total cross-sectional area of the multifidus was smaller in people with LBP (Standardized mean difference, SMD = -0.24, 95% CI = -0.5 to 0.03). Combined SMDs showed a medium effect of LBP on increasing multifidus muscle fat infiltration (SMD = 0.61, 95% CI = 0.30 to 0.91). There were no LBP related differences identified in the morphology or composition of the lumbar erector spine and psoas major muscles. CONCLUSIONS People with LBP were found to have somewhat smaller multifidus muscles with a significant amount of intramuscular fat infiltration. Varying sample size, age and BMI of participants, quality of studies and the procedures used to measure fat infiltration are possible reasons for inconsistencies in results of previous studies.
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The association between changes in multifidus muscle morphology and back pain scores following discectomy surgery for lumbar disc herniation: a systematic review and meta-analysis. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2022; 31:1784-1794. [PMID: 35325300 DOI: 10.1007/s00586-022-07181-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 03/07/2022] [Accepted: 03/08/2022] [Indexed: 10/18/2022]
Abstract
PURPOSE To evaluate the impact of discectomy on back muscles (e.g. multifidus muscle (MM)) morphology in patients with lumbar disc herniation (LDH) following discectomy surgery, address the association of back muscles morphology with pain score preoperatively and post-operatively, and investigate the relationships between the changes from pre- to post-operative back muscles measurements and pain score (primary outcome) and disability score (secondary outcome) change following discectomy if any. METHODS We searched three online databases for randomized controlled trials (RCTs) and observational studies. In LDH patients, eligible for discectomy surgery, pre- and post-operative and the changes from pre- to post-operative of back and/or leg pain with Visual Analogue Scale (VAS) and multifidus muscle morphology, were considered as primary outcomes. Cochrane Risk-of-Bias 2 tool and Newcastle-Ottawa Scale (NOS) were used to assess the methodological quality of RCTs and observational studies, respectively. Standardize mean difference (SMD) with 95% confidence intervals (CI) was evaluated. A meta-regression analysis was conducted. GRADE approach was used to summarize the strength of evidence. RESULTS One RCT and five observational studies were included in the analysis of 489 patients with LDH undergoing discectomy surgery. The mean overall follow-up was 64.9 weeks (6 to 148.7 weeks). There was a significant negative relationship between the change from pre- to post-operative cross-sectional area (CSA) in MM and change in VAS back pain [regression coefficient = -0.01, (95% CI = -0.02, -0.01), p = 0.044] after discectomy surgery. No significant relationship between preoperative CSA in MM and preoperative/post-operative clinical (any of the follow-up periods) scores could be established. CONCLUSION The results of this study found very low-quality grade evidence for an association between higher reduction of CSA in MM and less reductions of back pain scores following discectomy surgery for patients with LDH. Due to the heterogeneity and methodological limitations, further studies will improve understanding and aid preoperative counselling.
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Yazici A, Yerlikaya T, Oniz A. An evaluation of the efficacy of a four-grade fat infiltration classification method, presented for the first time in literature. BMC Musculoskelet Disord 2022; 23:226. [PMID: 35260112 PMCID: PMC8905850 DOI: 10.1186/s12891-022-05180-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 02/28/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The deficiency of the commonly used 3-grade fat infiltration system is discussed by comparing it with the 4-grade fat infiltration system, newly presented to the literature. The aim of this study was to evaluate the efficacy of a semi-quantitative simplified 4-grade fat infiltration measurement system, described for the first time in literature, through comparison with the existing simplified 3-grade fat infiltration system in the prediction of lumbar disc herniation. METHODS The study included 51 patients diagnosed with lumbar disc hernia and 50 healthy individuals as the control group. The patients were evaluated in respect of fat infiltration of the right and left lumbar multifidus and erector spina muscles on axial magnetic resonance imaging slices passing through the centre of the disc at L3-S1 level using the 3 and 4-grade fat infiltration measurement systems. RESULTS The 3-grade fat infiltration system was found to be insufficient in the prediction of lumbar disc herniation (p > 0.05) and the 4-grade fat infiltration system was determined to be effective in the prediction of lumbar disc herniation (p < 0.001). CONCLUSION The 4-grade fat infiltration system was seen to be more effective than the 3-grade fat infiltration system in the determination of the level of fat infiltration in the paraspinal muscles and the prediction of lumbar disc herniation. The 4-grade fat infiltration system is a more effective semi-quantitative grading system which can be used instead of the simplified 3-grade system.
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Affiliation(s)
- Alikemal Yazici
- Faculty of Medicine, Orthopedics and Traumatology Department, Near East University, Nicosia, Cyprus. .,Orthopedics and Traumatology Department, Buyuk Anadolu Hospital, Samsun, Turkey.
| | - Tuba Yerlikaya
- Faculty of Health Sciences, Physiotherapy and Rehabilitation Department, Near East University, Nicosia, Cyprus
| | - Adile Oniz
- Faculty of Health Sciences, Near East University, Nicosia, Cyprus.,Institute of Graduate Studies, Department of Biophysics, Near East University, Nicosia, Cyprus
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Jeon I, Kim SW, Yu D. Paraspinal muscle fatty degeneration as a predictor of progressive vertebral collapse in osteoporotic vertebral compression fractures. Spine J 2022; 22:313-320. [PMID: 34343666 DOI: 10.1016/j.spinee.2021.07.020] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 07/23/2021] [Accepted: 07/27/2021] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT Most osteoporotic vertebral compression fractures (OVCFs) are treated conservatively; however, in some patients, progressive vertebral body collapse leads to spinal deformity and cord compression. These complications are strongly associated with impaired performance activities of daily living and a poor quality of life. PURPOSE To identify the role of the paraspinal muscle as a risk factor for progressive vertebral body collapse in patients with OVCF. STUDY DESIGN This was a retrospective observational study. PATIENT SAMPLE Fifty-five consecutive patients with OVCF who were treated conservatively from January 2018 to June 2020 in a single spine center and had a minimum follow-up of 6 months. OUTCOME MEASURES A lateral plain radiograph in a neutral posture was taken when the patient was first diagnosed and at 1, 3, and 6 months after the first diagnosis. Vertebral height was measured at the point of maximal collapse of the affected vertebral body; vertebral collapse (%) was also measured. The cross-sectional area (CSA) and fatty degeneration of the paraspinal muscle were measured using the open-source software Image J. The visual analogue scale (VAS) scores were collected at the time of initial fracture diagnosis and at 1, 3, and 6 months. METHODS The clinical and radiological data were analyzed. In the L4-5 intervertebral disc level, axial T2-weighted magnetic resonance imaging was used to measure the CSA and fatty degeneration of the paraspinal muscles. Correlation and multiple regression analyses were performed to analyze the risk factors associated with progressive vertebral body collapse. RESULTS The vertebral collapse difference was strongly associated with paraspinal muscle fatty degeneration (r=0.684, p=.000) and body mass index (r=0.300, p=.026). Multiple linear regression analysis demonstrated that the risk factor for progression of vertebral collapse was paraspinal muscle fatty degeneration (β=0.724, p=.000). There was a statistically significant correlation between the progression in vertebral collapse and VAS score at 3 (r=0.402, p=.002) and 6 months (r=0.604, p=.000). CONCLUSIONS In patients with OVCF, fatty degeneration of the paraspinal muscle was a predictive factor for progressive vertebral body collapse. This study suggests that more attention should be paid to patients with paraspinal sarcopenia among those with OVCFs.
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Affiliation(s)
- Ikchan Jeon
- Department of Neurosurgery, Yeungnam University Hospital, Yeungnam University College of Medicine, Daegu, South Korea
| | - Sang Woo Kim
- Department of Neurosurgery, Yeungnam University Hospital, Yeungnam University College of Medicine, Daegu, South Korea
| | - Dongwoo Yu
- Department of Neurosurgery, Yeungnam University Hospital, Yeungnam University College of Medicine, Daegu, South Korea.
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Huang Y, Wang L, Zeng X, Chen J, Zhang Z, Jiang Y, Nie L, Cheng X, He B. Association of Paraspinal Muscle CSA and PDFF Measurements With Lumbar Intervertebral Disk Degeneration in Patients With Chronic Low Back Pain. Front Endocrinol (Lausanne) 2022; 13:792819. [PMID: 35721738 PMCID: PMC9204273 DOI: 10.3389/fendo.2022.792819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 04/21/2022] [Indexed: 12/01/2022] Open
Abstract
There is an interaction between the lumbar spine and paraspinal muscles, which may play a role in the development of intervertebral disc (IVD) degeneration and may affect CLBP. The study aims to assess the relationship between IVD degeneration and paraspinal muscle fat infiltration in CLBP patients by quantitative MR imaging, and to evaluate the influence of sex and age on CLBP muscle fat infiltration. Sixty CLBP patients (46.3 years ±17.0) and thirty-two healthy subjects (44.9 years ±17.6) were recruited for this study. 3.0 T MRI was used to perform the sagittal and axial T1, T2 of the lumbar spine, and axial paraspinal muscle IDEAL imaging at the L4/5 and L5/S1 levels. Proton density fat fraction (PDFF) of the multifidus and erector spinae at two IVD levels were measured. The Pfirrmann grades of IVD degeneration, Oswestry Disability Index (ODI), and Visual Analog Scale (VAS) were also evaluated. Compare the cross-sectional area (CSA) and PDFF of the paraspinal muscles between CLBP patients and healthy subjects, and analyze the relationship between the muscle PDFF and Pfirrmann grades, gender, and age of CLBP patients. Compared with healthy subjects, the CSA of the multifidus muscle in CLBP patients decreased (1320.2±188.1mm2vs. 1228.7±191.0 mm2, p<0.05) at the L4/5 level, the average PDFF increased, (7.7±2.6% vs. 14.79±5.3%, 8.8±4.2% vs. 16.03±5.3%, all p<0.05) at both L4/5 and L5/S1 levels. The PDFF of paraspinal muscles were correlated with adjacent IVD degeneration, ODI and VSA in CLBP patients (all p<0.05). After using age and body mass index (BMI) as control variables, significance was retained (all p<0.05). Multiple regression analysis revealed sex and age also were significantly associated with multifidus PDFF (all p < 0.05). This study confirmed that the CSA decreased and the PDFF increased of the paraspinal muscles in CLBP patients. It reveals a significant correlation between the PDFF of CLBP paraspinal muscles and the grade of IVD degeneration. Sex and age are also important factors influencing CLBP paraspinal muscle infiltration.
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Affiliation(s)
- Yilong Huang
- Department of Medical Imaging, the First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Ling Wang
- Department of Radiology, Beijing Jishuitan Hospital, Beijing, China
| | - Xiaomin Zeng
- Department of Medical Imaging, the First Affiliated Hospital of Kunming Medical University, Kunming, China
- GE Healthcare, Magnetic Resonance Field Application Team, Chengdu, China
| | - Jiaxin Chen
- Department of Medical Imaging, the First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Zhenguang Zhang
- Department of Medical Imaging, the First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yuanming Jiang
- Department of Medical Imaging, the First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Lisha Nie
- GE Healthcare, Magnetic Resonance Research China, Beijing, China
| | - Xiaoguang Cheng
- Department of Radiology, Beijing Jishuitan Hospital, Beijing, China
- *Correspondence: Bo He, ; Xiaoguang Cheng,
| | - Bo He
- Department of Medical Imaging, the First Affiliated Hospital of Kunming Medical University, Kunming, China
- *Correspondence: Bo He, ; Xiaoguang Cheng,
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Huang Y, Wang L, Luo B, Yang K, Zeng X, Chen J, Zhang Z, Li Y, Cheng X, He B. Associations of Lumber Disc Degeneration With Paraspinal Muscles Myosteatosis in Discogenic Low Back Pain. Front Endocrinol (Lausanne) 2022; 13:891088. [PMID: 35634490 PMCID: PMC9136003 DOI: 10.3389/fendo.2022.891088] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 04/13/2022] [Indexed: 11/13/2022] Open
Abstract
Accompanied with intervertebral disc (IVD) degeneration, increasing fat infiltration of paraspinal muscles may be related to discogenic low back pain (DLBP), but their relationship is still unclear and the classical animal models are not completely applicable. The purpose of this study was to assess the paraspinal muscle fat infiltration in patients with DLBP by quantitative MRI, and to develop a novel DLBP rat model to explore the potential relationship between DLBP paraspinal muscle fat infiltration and TNF-α levels. We measured the proton density fat fraction (PDFF) of the multifidus and erector spinae muscles of 70 DLBP patients and 36 healthy volunteers by using quantitative MRI IDEAL-IQ. In addition, we developed a DLBP experimental rat model by puncturing the L4/5 and L5/6 IVDs under the guidance of X-ray fluoroscopy. Then various behavioral experiments, MRI and pathological examination of IVDs were used to evaluate the performance of the DLBP animal model. The gait analysis, hot plate test, acetone test, grasping test and tail suspension test were used to evaluate the pain and muscle dysfunction in rats. Through quantitative MRI and histological examination, the degeneration of IVDs and fat infiltration in the muscles were observed in vivo and ex vivo. Enzyme linked immunosorbent assay detects the level of TNF-α in rat IVDs and paraspinal muscles. In the human study, compared with healthy volunteers, the PDFF of multifidus and erector muscles of DLBP patients increased significantly at L4/5 and L5/S1 levels (p<0.05). In the rat experiment, compared with control group and sham group, DLBP group had reduced gait score, shortened response time to cold and heat stimuli, prolonged bending time, and shortened struggling time. Rat lumbar MRI T2WI showed that the signal intensity of L4/5 and L5/6 IVDs were progressively decreased. Histological examination revealed that IVDs had increased collagen fibers, reduced nucleus pulposus, thickened annulus fibrosus, and distorted shape. The PDFF of multifidus muscle at L4/5 and L5/6 level in the DLBP group were more than that in other groups (p<0.05), and HE staining and oil red O staining of paraspinal muscles showed that the muscle bundle space of the DLBP group muscles increased, and the muscle tissues Increased lipid droplets. Finally, the expression of TNF-α in IVDs and paraspinal muscles in the DLBP group were significantly higher than that in the control group (p<0.05). It is reliable and feasible to establish a DLBP rat model by puncturing the lumbar IVDs under the guidance of X-ray fluoroscopy. The degeneration of lumbar IVDs with DLBP leads to the occurrence of fat infiltration of paraspinal muscles, which is related to the expression of TNF-α.
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Affiliation(s)
- Yilong Huang
- Department of Medical Imaging, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Ling Wang
- Department of Radiology, Beijing Jishuitan Hospital, Beijing, China
| | - Baofa Luo
- Department of Medical Imaging, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Kaiwen Yang
- Department of Medical Imaging, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Xiaomin Zeng
- Department of Medical Imaging, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Jiaxin Chen
- Department of Medical Imaging, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Zhenguang Zhang
- Department of Medical Imaging, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yanlin Li
- Department of Sports Medicine, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Xiaoguang Cheng
- Department of Radiology, Beijing Jishuitan Hospital, Beijing, China
| | - Bo He
- Department of Medical Imaging, The First Affiliated Hospital of Kunming Medical University, Kunming, China
- *Correspondence: Bo He,
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Radchenko V, Ashukina N, Maltseva V, Skidanov M, Nikolchenko O, Danyshchuk Z, Skidanov A. MODELS OF PARASPINAL MUSCLE DEGENERATION IN RATS: HIGH-FAT DIET AND PROLONGED COMPRESSION. WIADOMOSCI LEKARSKIE (WARSAW, POLAND : 1960) 2022; 75:2280-2285. [PMID: 36378709 DOI: 10.36740/wlek202209218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
OBJECTIVE The aim: To study the structural features of the lumbar m. multifidus and the m. psoas after keeping rats on a high-fat diet (obesity) or compressing their lumbar paraspinal muscles by binding the muscles using non-absorbable sutures. PATIENTS AND METHODS Materials and methods: The study was performed on 2-month-old male rats (n=15) into three groups of 5: control group (normal diet without any surgical interventions), high-fat diet (model I: 40-45% kcal fat), and paraspinal muscles compression (model II: paraspinal muscles were tied from L2 to S1 with non-absorbable sutures Nurolon® 3). The experiment lasted for 90 days, after those fragments of the lumbar m. multifidus and m. psoas removed and histomorphometry analysis performed. RESULTS Results: 12 weeks from the beginning of the experiment, the high-fat diet rats weighed, on average, 22% (p=0.001) more than the control group rats. Similar degenerative changes such as uneven muscle fibre width and sarcoplasm colouring, 'wavy' and swollen fibres, loss of striation, karyopyknosis were observed in the lumbar paraspinal muscles in both models. In high-fat diet group the fat area (%) in the m. multifidus was 1.8 times larger (р<0.001) and in the m. psoas was greater by 2.2 times (р<0.001) than in the control. Fibrous tissue replaced muscle fibres in m. multifidus in model II and was 12.66%. CONCLUSION Conclusions: The relevance of the models is proven: after 3 months, it is possible to obtain degenerative changes in the muscle tissue that are extremely similar to those observed in the muscles of patients with degenerative spine diseases.
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Affiliation(s)
| | | | | | - Mykyta Skidanov
- SYTENKO INSTITUTE OF SPINE AND JOINT PATHOLOGY, KHARKIV, UKRAINE
| | - Olga Nikolchenko
- SYTENKO INSTITUTE OF SPINE AND JOINT PATHOLOGY, KHARKIV, UKRAINE
| | | | - Artem Skidanov
- SYTENKO INSTITUTE OF SPINE AND JOINT PATHOLOGY, KHARKIV, UKRAINE
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Yin P, Ding Y, Zhou L, Xu C, Gao H, Pang D, Hai Y, Yang J. Innovative Percutaneous Endoscopic Transforaminal Lumbar Interbody Fusion of Lumbar Spinal Stenosis with Degenerative Instability: A Non-Randomized Clinical Trial. J Pain Res 2021; 14:3685-3693. [PMID: 34880673 PMCID: PMC8648278 DOI: 10.2147/jpr.s340004] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 11/24/2021] [Indexed: 11/23/2022] Open
Abstract
Purpose Lumbar spinal stenosis (LSS) with instability is most common lumbar degenerative diseases for people with low back pain. The objective of this study was to compared the clinical effects for the treatment of lumbar spinal stenosis (LSS) with degenerative instability between the innovative percutaneous endoscopic transforaminal lumbar interbody fusion (PE-TLIF) technique and posterior lumbar interbody fusion (PLIF) technique. Patients and Methods Between April 2019 and April 2020, 114 patients with single-segment LSS were prospectively included in our study (ChiCTR1900022492). Visual Analogue Scale (VAS) on lumbar and leg pain (VAS-LBP, VAS-LP), Oswestry Disability Index (ODI), serum creatine kinase (CK), the maximal cross-sectional area of multifidus muscle (Max-CSA) and the peak intensity of sulphur hexafluoride microbubble contrast agent (PI) around the surgical incision by contrast-enhanced ultrasonography were evaluated preoperatively, post-operatively and at regular follow-up. Results All patients were followed up. The VAS-LBP, VAS-LP, ODI after operation were improved significantly compared to these data before operation in all the patients (P<0.05). The VAS-LBP at 1 weeks, 3 months after operation in PE-TLIF group were significantly lower than these in PLIF group (P<0.05). The injury degree of multifidus muscle evaluated by MAX-CSA and PI was significantly less in PE-TLIF group after operation (P<0.05). There was no significant difference on the complication rate between these two groups (P>0.05). Conclusion Our results presented PE-TLIF technique could obtain comparable effective outcomes as conventional PLIF for the treatment of LSS with degenerative instability. The patients with PE-TLIF had less muscle injury, less pain and quicker postoperative rehabilitation.
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Affiliation(s)
- Peng Yin
- Department of Orthopaedics, Beijing Chao-Yang Hospital, China Capital Medical University, Beijing, People's Republic of China
| | - Yi Ding
- Department of Orthopaedics, Beijing Chao-Yang Hospital, China Capital Medical University, Beijing, People's Republic of China
| | - Lijin Zhou
- Department of Orthopaedics, Beijing Chao-Yang Hospital, China Capital Medical University, Beijing, People's Republic of China
| | - Chunyang Xu
- Department of Orthopaedics, Beijing Chao-Yang Hospital, China Capital Medical University, Beijing, People's Republic of China
| | - Haifeng Gao
- Department of Orthopaedics, Beijing Chao-Yang Hospital, China Capital Medical University, Beijing, People's Republic of China
| | - Daming Pang
- Department of Orthopaedics, Beijing Chao-Yang Hospital, China Capital Medical University, Beijing, People's Republic of China
| | - Yong Hai
- Department of Orthopaedics, Beijing Chao-Yang Hospital, China Capital Medical University, Beijing, People's Republic of China
| | - Jincai Yang
- Department of Orthopaedics, Beijing Chao-Yang Hospital, China Capital Medical University, Beijing, People's Republic of China
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64
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Hodges PW, Bailey JF, Fortin M, Battié MC. Paraspinal muscle imaging measurements for common spinal disorders: review and consensus-based recommendations from the ISSLS degenerative spinal phenotypes group. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2021; 30:3428-3441. [PMID: 34542672 DOI: 10.1007/s00586-021-06990-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 08/12/2021] [Accepted: 09/05/2021] [Indexed: 12/17/2022]
Abstract
PURPOSE Paraspinal muscle imaging is of growing interest related to improved phenotyping, prognosis, and treatment of common spinal disorders. We reviewed issues related to paraspinal muscle imaging measurement that contribute to inconsistent findings between studies and impede understanding. METHODS Three key contributors to inconsistencies among studies of paraspinal muscle imaging measurements were reviewed: failure to consider possible mechanisms underlying changes in paraspinal muscles, lack of control of confounding factors, and variations in spinal muscle imaging modalities and measurement protocols. Recommendations are provided to address these issues to improve the quality and coherence of future research. RESULTS Possible pathophysiological responses of paraspinal muscle to various common spinal disorders in acute or chronic phases are often overlooked, yet have important implications for the timing, distribution, and nature of changes in paraspinal muscle. These considerations, as well as adjustment for possible confounding factors, such as sex, age, and physical activity must be considered when planning and interpreting paraspinal muscle measurements in studies of spinal conditions. Adoption of standardised imaging measurement protocols for paraspinal muscle morphology and composition, considering the strengths and limitations of various imaging modalities, is critically important to interpretation and synthesis of research. CONCLUSION Study designs that consider physiological and pathophysiological responses of muscle, adjust for possible confounding factors, and use common, standardised measures are needed to advance knowledge of the determinants of variations or changes in paraspinal muscle and their influence on spinal health.
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Affiliation(s)
- Paul W Hodges
- School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane, QLD, 4072, Australia.
| | - Jeannie F Bailey
- Department of Orthopedic Surgery, University of California, San Francisco, CA, USA
| | - Maryse Fortin
- Department of Health, Kinesiology & Applied Physiology, Concordia University, Montreal, QC, Canada
| | - Michele C Battié
- Faculty of Health Sciences and Western's Bone and Joint Institute, Western University, London, ON, Canada
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65
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Gengyu H, Jinyue D, Chunjie G, Bo Z, Yu J, Jiaming L, Weishi L. The predictive value of preoperative paraspinal muscle morphometry on complications after lumbar surgery: a systematic review. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2021; 31:364-379. [PMID: 34773148 DOI: 10.1007/s00586-021-07052-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 07/18/2021] [Accepted: 11/01/2021] [Indexed: 12/12/2022]
Abstract
PURPOSE The effect of paraspinal muscles atrophy and fat infiltration (FI) on the complications of spinal surgery has not been established. METHODS A review of the literature was conducted from a search of the PubMed, EMBASE, and Web of Science databases from inception through January 2021. The literature was searched and assessed by independent reviewers based on criteria that included an assessment of preoperative paraspinal muscle morphology in addition to measuring its relationship to surgical complications. All relevant papers were assessed for risk of bias according to the modified Newcastle Ottawa Scale and the Joanna Briggs Institute Critical Appraisal Tools. A narrative synthesis was conducted. RESULTS The initial search yielded 5632 studies, of which 16 studies were included in the analysis. All included studies were at a low risk of bias. There existed strong evidence that the atrophy and FI of paraspinal muscles had an association with the development of bone nonunion (two high quality studies), pedicle screw loosening (two high quality studies), adjacent segment degeneration (three high quality studies) and proximal junctional kyphosis (five high quality studies) after lumbar surgery. Besides, there is also limited evidence for association between atrophy and FI of paraspinal extensor muscles and less local and global curve improvement. CONCLUSIONS Strong evidence was found for an association between preoperative paraspinal muscle degeneration and multiple postoperative complications after lumbar surgery. However, the findings should be interpreted with caution due to the small quantity of the available literature and high heterogeneity among studies.
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Affiliation(s)
- Han Gengyu
- Third Hospital Orthopedics Department, Peking University, No. 49 NorthGarden Road, Haidian District, Beijing, 100191, China.,Beijing Key Laboratory of Spinal Disease Research and Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Peking University, Beijing, China
| | - Dai Jinyue
- Third Hospital Orthopedics Department, Peking University, No. 49 NorthGarden Road, Haidian District, Beijing, 100191, China
| | - Gong Chunjie
- Peking University Health Science Center, Beijing, 100191, China
| | - Zhang Bo
- Peking University Health Science Center, Beijing, 100191, China
| | - Jiang Yu
- Third Hospital Orthopedics Department, Peking University, No. 49 NorthGarden Road, Haidian District, Beijing, 100191, China.,Beijing Key Laboratory of Spinal Disease Research and Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Peking University, Beijing, China
| | - Li Jiaming
- Peking University Health Science Center, Beijing, 100191, China
| | - Li Weishi
- Third Hospital Orthopedics Department, Peking University, No. 49 NorthGarden Road, Haidian District, Beijing, 100191, China. .,Beijing Key Laboratory of Spinal Disease Research and Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Peking University, Beijing, China.
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Pilat C, Weyh C, Frech T, Krüger K, Schubert E, Mooren FC. An ergonomic welding torch reduces physical load response and improves welding quality in novices: a pilot study. INTERNATIONAL JOURNAL OF OCCUPATIONAL SAFETY AND ERGONOMICS 2021; 28:2370-2376. [PMID: 34608851 DOI: 10.1080/10803548.2021.1989199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Objectives. This crossover pilot study aimed to compare the physical load response of an ergonomically improved welding torch versus a conventional torch. Methods. Ten inexperienced volunteers performed an experimental augmented virtual welding trial at chest height (ASME code 1G) and overhead (ASME code 4G) with both welding torches in random order. Skeletal muscle load and fatigue were assessed by surface electromyography and changes in isometric peak force. The sensation of pain, perceived exertion and welding execution quality were defined as further outcome parameters. Results. The muscle load response in three out of eight muscles was lower in favour of the ergonomic welding torch, which went along with a lower sensation of pain and a higher working accuracy. Conclusions. An ergonomically improved welding torch reduces the acute physical load response and sensation of pain, which ultimately allows performing better, and might contribute to prevention of musculoskeletal diseases in the long term.
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Affiliation(s)
- Christian Pilat
- Department of Sports Therapy and Exercise Physiology, Justus-Liebig-University, Germany
| | - Christopher Weyh
- Department of Sports Therapy and Exercise Physiology, Justus-Liebig-University, Germany
| | - Torsten Frech
- Department of Sports Therapy and Exercise Physiology, Justus-Liebig-University, Germany
| | - Karsten Krüger
- Department of Sports Therapy and Exercise Physiology, Justus-Liebig-University, Germany
| | - Emil Schubert
- Abicor Binzel, Alexander Binzel Schweißtechnik GmbH & Co.KG, Germany
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Tagliaferri SD, Ng SK, Fitzgibbon BM, Owen PJ, Miller CT, Bowe SJ, Belavy DL. Relative contributions of the nervous system, spinal tissue and psychosocial health to non-specific low back pain: Multivariate meta-analysis. Eur J Pain 2021; 26:578-599. [PMID: 34748265 DOI: 10.1002/ejp.1883] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 10/31/2021] [Indexed: 12/30/2022]
Abstract
BACKGROUND AND OBJECTIVES Nervous system, psychosocial and spinal tissue biomarkers are associated with non-specific low back pain (nsLBP), though relative contributions are unclear. DATABASES AND DATA TREATMENT MEDLINE, EMBASE, CINAHL, PsycINFO and SPORTDiscus were searched up to 25 March 2020. Related reviews and reference lists were also screened. Observational studies examining structural and functional nervous system biomarkers (e.g. quantitative sensory tests, structural and functional brain measures), psychosocial factors (e.g. mental health, catastrophizing) and structural spinal imaging biomarkers (e.g. intervertebral disc degeneration, paraspinal muscle size) between nsLBP and pain-free controls were included. For multivariate meta-analysis, two of three domains were required in each study. Random-effects pairwise and multivariate meta-analyses were performed. GRADE approach assessed evidence certainty. Newcastle-Ottawa scale assessed risk of bias. Main outcomes were the effect size difference of domains between nsLBP and pain-free controls. RESULTS Of 4519 unique records identified, 33 studies (LBP = 1552, referents = 1322) were meta-analysed. Psychosocial state (Hedges' g [95%CI]: 0.90 [0.69-1.10], p < 0.001) in nsLBP showed larger effect sizes than nervous system (0.31 [0.13-0.49], p < 0.001; difference: 0.61 [0.36-0.86], p < 0.001) and spine imaging biomarkers (0.55 [0.37-0.73], p < 0.001; difference: 0.36 [0.04-0.67], p = 0.027). The relationship between domains changes depending on if pain duration is acute or chronic. CONCLUSIONS Psychosocial effect sizes in nsLBP are greater than that for spinal imaging and nervous system biomarkers. Limitations include cross-sectional design of studies included and inference of causality. Future research should investigate the clinical relevance of these effect size differences in relation to pain intensity and disability. STUDY REGISTRATION PROSPERO-CRD42020159188. SIGNIFICANCE Spinal imaging (e.g. intervertebral disc degeneration), psychosocial (e.g. depression) and nervous system (e.g. quantitative sensory tests, structural and functional brain measures) biomarkers contribute to non-specific low back pain. However, psychosocial factors may be more compromised than nervous system and spinal imaging biomarkers. This relationship depends on if the pain is acute or chronic. These findings underscore that the 'non-specific' label in back pain should be reconsidered, and more specific multidimensional categories evaluated to guide patient management.
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Affiliation(s)
- Scott D Tagliaferri
- Deakin University, Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Geelong, Victoria, Australia
| | - Sin-Ki Ng
- School of Public Health and Preventive Medicine, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Victoria, Australia
| | - Bernadette M Fitzgibbon
- Monash University, Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Faculty of Medicine, Nursing and Health Sciences, Melbourne, Victoria, Australia
| | - Patrick J Owen
- Deakin University, Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Geelong, Victoria, Australia
| | - Clint T Miller
- Deakin University, Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Geelong, Victoria, Australia
| | - Steven J Bowe
- Deakin University, Faculty of Health, Biostatistics Unit, Geelong, Victoria, Australia
| | - Daniel L Belavy
- Deakin University, Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Geelong, Victoria, Australia.,Division of Physiotherapy, Department of Applied Health Sciences, Hochschule für Gesundheit (University of Applied Sciences), Bochum, Germany
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68
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Alcaraz-Clariana S, García-Luque L, Garrido-Castro JL, Aranda-Valera IC, Ladehesa-Pineda L, Puche-Larrubia MÁ, Carmona-Pérez C, Rodrigues-de-Souza DP, Alburquerque-Sendín F. Paravertebral Muscle Mechanical Properties in Patients with Axial Spondyloarthritis or Low Back Pain: A Case-Control Study. Diagnostics (Basel) 2021; 11:1898. [PMID: 34679595 PMCID: PMC8535094 DOI: 10.3390/diagnostics11101898] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 10/06/2021] [Accepted: 10/12/2021] [Indexed: 12/29/2022] Open
Abstract
Different musculoskeletal disorders are a source of pain in the spinal region; most of them can be divided into mechanical, such as low back pain (LBP), or inflammatory origins, as is the case of axial spondyloarthritis (axSpA). Nevertheless, insufficient information is available about the muscle negative consequences of these conditions. Thus, the objective of this study was to identify whether mechanical muscle properties (MMPs) of cervical and lumbar muscles are different between patients with axSpA, subacute LBP (sLBP), and healthy controls. Furthermore, we aimed identify whether MMPs were related to sociodemographic and clinical variables in various study groups. The MMPs, sociodemographic, and clinical variables were obtained in 43 patients with axSpA, 43 subjects with sLBP, and 43 healthy controls. One-way ANOVAs and ROC curves were applied to identify whether the MMPs could differentiate between the study groups. Intra-group Pearson r coefficients to test the associations between MMPs and the rest of the variables were calculated. The results showed that axSpA subjects have a higher tone and stiffness and a lower relaxation and creep than sLBP and healthy ones (p < 0.05). All lumbar and cervical MMPs, except for decrement, could correctly classify axSpA and healthy subjects and axSpA and sLBP patients (in both cases, Area Under the Curve > 0.8). However, no MMP could differentiate between sLBP and healthy subjects. Each group had a different pattern of bivariate correlations between MMPs and sociodemographic and clinical data, with a worse state and progression of the axSpA group associated with a higher tone and stiffness in both spinal regions. This study supports that MMPs are different and show different patterns of correlations depending on the type of spinal pain.
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Affiliation(s)
- Sandra Alcaraz-Clariana
- Department of Nursing, Pharmacology and Physical Therapy, Faculty of Medicine and Nursing, University of Cordoba, 14004 Cordoba, Spain; (S.A.-C.); (L.G.-L.); (C.C.-P.); (F.A.-S.)
| | - Lourdes García-Luque
- Department of Nursing, Pharmacology and Physical Therapy, Faculty of Medicine and Nursing, University of Cordoba, 14004 Cordoba, Spain; (S.A.-C.); (L.G.-L.); (C.C.-P.); (F.A.-S.)
| | - Juan Luis Garrido-Castro
- Department of Computer Science and Numerical Analysis, Rabanales Campus, University of Cordoba, 14071 Cordoba, Spain;
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), 14004 Cordoba, Spain; (I.C.A.-V.); (L.L.-P.); (M.Á.P.-L.)
| | - I. Concepción Aranda-Valera
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), 14004 Cordoba, Spain; (I.C.A.-V.); (L.L.-P.); (M.Á.P.-L.)
- Department of Rheumatology, University Hospital Reina Sofía, 14004 Cordoba, Spain
- Department of Medical and Surgical Sciences, University of Cordoba, 14004 Cordoba, Spain
| | - Lourdes Ladehesa-Pineda
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), 14004 Cordoba, Spain; (I.C.A.-V.); (L.L.-P.); (M.Á.P.-L.)
- Department of Rheumatology, University Hospital Reina Sofía, 14004 Cordoba, Spain
- Department of Medical and Surgical Sciences, University of Cordoba, 14004 Cordoba, Spain
| | - María Ángeles Puche-Larrubia
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), 14004 Cordoba, Spain; (I.C.A.-V.); (L.L.-P.); (M.Á.P.-L.)
- Department of Rheumatology, University Hospital Reina Sofía, 14004 Cordoba, Spain
- Department of Medical and Surgical Sciences, University of Cordoba, 14004 Cordoba, Spain
| | - Cristina Carmona-Pérez
- Department of Nursing, Pharmacology and Physical Therapy, Faculty of Medicine and Nursing, University of Cordoba, 14004 Cordoba, Spain; (S.A.-C.); (L.G.-L.); (C.C.-P.); (F.A.-S.)
| | - Daiana Priscila Rodrigues-de-Souza
- Department of Nursing, Pharmacology and Physical Therapy, Faculty of Medicine and Nursing, University of Cordoba, 14004 Cordoba, Spain; (S.A.-C.); (L.G.-L.); (C.C.-P.); (F.A.-S.)
| | - Francisco Alburquerque-Sendín
- Department of Nursing, Pharmacology and Physical Therapy, Faculty of Medicine and Nursing, University of Cordoba, 14004 Cordoba, Spain; (S.A.-C.); (L.G.-L.); (C.C.-P.); (F.A.-S.)
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), 14004 Cordoba, Spain; (I.C.A.-V.); (L.L.-P.); (M.Á.P.-L.)
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Ogawa M, Koskensalo K, Laurila S, Holstila M, Lahesmaa M, Virtanen KA, Iida H, Akima H, Nuutila P. Brown adipose tissue fat-fraction is associated with skeletal muscle adiposity. Eur J Appl Physiol 2021; 122:81-90. [PMID: 34564756 DOI: 10.1007/s00421-021-04816-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 09/17/2021] [Indexed: 11/28/2022]
Abstract
PURPOSE While brown adipose tissue (BAT) activity is known to be associated with both muscle and adipose tissue volumes, the association between BAT and muscle composition remains unclear, especially in adults. Therefore, the present study aimed to examine the association between BAT parameters (glucose uptake and fat-fraction) and muscle volumes and intramuscular adipose tissue contents among healthy young and middle-aged men. METHODS BAT glucose uptake was determined using positron emission tomography with [18F]-2-deoxy-2-fluoro-D-glucose (18F-FDG) during cold exposure in 19 young and middle-aged men (36.3 ± 10.7 years). The fat-fraction of BAT was determined from volumes of interest set in cervical and supraclavicular adipose tissue depots using signal fat-fraction maps via magnetic resonance imaging (MRI). Muscle volumes and intramuscular adipose tissue contents of m. tibialis anterior and m. multifidus lumborum were measured using MRI. RESULTS The fat-fraction of BAT was significantly associated with intramuscular adipose tissue content in m. tibialis anterior (n = 13, rs = 0.691, P = 0.009). A similar trend was also observed in m. multifidus lumborum (n = 19, rs = 0.454, P = 0.051). However, BAT glucose uptake was not associated with intramuscular adipose tissue contents in both muscles, nor were muscle volumes associated with the BAT glucose uptake and fat-fraction. CONCLUSION The fat-fraction of BAT increases with skeletal muscle adiposity, especially in the lower leg, among healthy young and middle-aged men.
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Affiliation(s)
- Madoka Ogawa
- Graduate School of Education and Human Development, Nagoya University, Aichi, Japan. .,Nippon Sport Science University, Tokyo, Japan. .,Kyoto Sangyo University, Kyoto, Japan.
| | - Kalle Koskensalo
- Turku PET centre, University of Turku, Turku, Finland.,Turku PET centre, Turku University Hospital, Turku, Finland.,Department of Medical Physics, Turku University Hospital, Turku, Finland.,Heart Center, Turku University Hospital, Turku, Finland
| | - Sanna Laurila
- Turku PET centre, University of Turku, Turku, Finland.,Turku PET centre, Turku University Hospital, Turku, Finland.,Heart Center, Turku University Hospital, Turku, Finland.,Satakunta Central Hospital, Pori, Finland
| | - Milja Holstila
- Turku PET centre, University of Turku, Turku, Finland.,Turku PET centre, Turku University Hospital, Turku, Finland.,Medical Imaging Centre of Southwest Finland, Turku University Hospital, Turku, Finland
| | - Minna Lahesmaa
- Turku PET centre, University of Turku, Turku, Finland.,Turku PET centre, Turku University Hospital, Turku, Finland
| | - Kirsi A Virtanen
- Turku PET centre, Turku University Hospital, Turku, Finland.,Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Hidehiro Iida
- Turku PET centre, University of Turku, Turku, Finland.,Turku PET centre, Turku University Hospital, Turku, Finland
| | - Hiroshi Akima
- Graduate School of Education and Human Development, Nagoya University, Aichi, Japan.,Research Center of Health, Physical Fitness and Sports, Nagoya University, Aichi, Japan
| | - Pirjo Nuutila
- Turku PET centre, University of Turku, Turku, Finland.,Turku PET centre, Turku University Hospital, Turku, Finland.,Department of Endocrinology, Turku University Hospital, Turku, Finland
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Uehara M, Ikegami S, Horiuchi H, Takahashi J, Kato H. Prevalence and Related Factors of Low Back Pain in the General Elderly Population: A Japanese Cross-Sectional Study Randomly Sampled from a Basic Resident Registry. J Clin Med 2021; 10:jcm10184213. [PMID: 34575324 PMCID: PMC8467105 DOI: 10.3390/jcm10184213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 08/13/2021] [Accepted: 09/16/2021] [Indexed: 11/16/2022] Open
Abstract
Low back pain (LBP) is one of the main etiologies of disability in daily life. In the face of LBP increases in super-aged societies, there are serious concerns of escalating medical costs and deteriorations in the social economy. It is therefore important to identify the factors associated with LBP for prompt preventative and therapeutic measures. This study investigated the prevalence of LBP and the impact of subject-specific factors on LBP development in Japanese community-dwelling older adults. We established eight groups based on age (50's, 60's, 70's, and 80's) and gender after random sampling from a resident registry. A total of 411 participants (201 male and 210 female) were enrolled for a whole-spine lateral radiographic examination and dual-energy X-ray absorptiometry. All subjects were evaluated for the presence and degree of LBP. We analyzed the impact of clinical factors on LBP using multivariate analysis. Fifty-three (12.9%) participants (23 (11.4%) male and 30 (14.3%) female) were found to have LBP. The prevalence of LBP tended to increase with age, and similar results were found between genders. In univariate analysis, the subject-related factors of the sagittal vertebral axis, pelvic incidence minus lumbar lordosis (PI-LL) mismatch, and aging had significant associations with LBP. PI-LL mismatch was a significant independent factor in multivariate analysis. In conclusion, this study identified LBP prevalence and subject-specific factors on a general population basis. Multivariate analysis revealed PI-LL mismatch as an independent factor associated with LBP in the healthy community-dwelling elderly.
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Affiliation(s)
- Masashi Uehara
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, Nagano 390-8621, Japan; (S.I.); (J.T.); (H.K.)
- Correspondence: ; Tel.: +81-263-37-2659
| | - Shota Ikegami
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, Nagano 390-8621, Japan; (S.I.); (J.T.); (H.K.)
| | - Hiroshi Horiuchi
- Rehabilitation Center, Shinshu University Hospital, Nagano 390-8621, Japan;
| | - Jun Takahashi
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, Nagano 390-8621, Japan; (S.I.); (J.T.); (H.K.)
| | - Hiroyuki Kato
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, Nagano 390-8621, Japan; (S.I.); (J.T.); (H.K.)
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Garrido-Castro JL, Aranda-Valera IC, Peña-Amaro J, Martínez-Galisteo A, González-Navas C, Rodrigues-de-Souza DP, Alcaraz-Clariana S, García-Luque L, Sánchez IRM, López-Medina C, Collantes-Estévez E, Alburquerque-Sendín F. Mechanical Properties of Lumbar and Cervical Paravertebral Muscles in Patients with Axial Spondyloarthritis: A Case-Control Study. Diagnostics (Basel) 2021; 11:diagnostics11091662. [PMID: 34574003 PMCID: PMC8472659 DOI: 10.3390/diagnostics11091662] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 08/31/2021] [Accepted: 09/08/2021] [Indexed: 02/06/2023] Open
Abstract
Background: Axial spondyloarthritis (axSpA) affects spinal muscles, due to inflammation and structural damage. The mechanical properties of the muscles, such as tone or stiffness, could be altered in axSpA. The aim of this work is to analyze the mechanical properties of cervical and lumbar spine muscles in axSpA patients and their relationship with metrology measures, function, disease activity, structural damage and quality of life. Methods: axSpA patients and age/gender/BMI matched healthy controls were recruited. The muscle mechanical properties (MMPs), such as tone or frequency, stiffness, decrement (linear elastic properties), relaxation and creep (viscoelastic properties), of cervical (semispinalis capitis) and lumbar (erector spinae) muscles were bilaterally measured at rest using myotonometry. Additionally, conventional metrology, BASMI (metrology index), BASDAI (disease activity index), mSASSS (radiological structural damage index) and SF-12 (health-related quality of life questionnaire) were used in the axSpA group. Between-groups comparison, intra-group correlations and multivariable regression analyses were performed to achieve the study aims. Results: Thirty-four axSpA patients (mean age: 46.21 ± 8.53 y) and 34 healthy volunteers (mean age: 43.97 ± 8.49 y) were recruited. Both in cervical and lumbar spine, linear elastic parameters were significantly higher in axSpA patients in comparison with controls, while viscoelastic parameters were significantly lower. Lumbar muscle frequency, stiffness, relaxation, creep and cervical muscle elasticity were fair to strongly correlated (|0.346| < r < |0.774|) with age, functional status, activity of disease, structural damage and quality of life in axSpA patients. Furthermore, moderate to good fitted multivariate models (0.328 < R2 < 0.697) were obtained combining age, conventional metrology, activity of the disease and function for the estimation of cervical and lumbar MMPs. Conclusion: Mechanical properties of spinal muscles of axSpA patients differ from controls. Lumbar and cervical muscles exhibit greater linear elastic properties and lower viscoelastic properties, which are related with age, clinical and psychophysiological features of axSpA.
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Affiliation(s)
- Juan L. Garrido-Castro
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), 14004 Cordoba, Spain; (J.L.G.-C.); (I.C.A.-V.); (J.P.-A.); (C.G.-N.); (C.L.-M.); (E.C.-E.); (F.A.-S.)
| | - I. Concepción Aranda-Valera
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), 14004 Cordoba, Spain; (J.L.G.-C.); (I.C.A.-V.); (J.P.-A.); (C.G.-N.); (C.L.-M.); (E.C.-E.); (F.A.-S.)
- Department of Rheumatology, University Hospital Reina Sofía, 14004 Cordoba, Spain
- Department of Medical and Surgical Sciences, University of Cordoba, 14004 Cordoba, Spain
| | - José Peña-Amaro
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), 14004 Cordoba, Spain; (J.L.G.-C.); (I.C.A.-V.); (J.P.-A.); (C.G.-N.); (C.L.-M.); (E.C.-E.); (F.A.-S.)
- Department of Morphological and Social Health Sciences, University of Cordoba, 14004 Cordoba, Spain
| | | | - Cristina González-Navas
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), 14004 Cordoba, Spain; (J.L.G.-C.); (I.C.A.-V.); (J.P.-A.); (C.G.-N.); (C.L.-M.); (E.C.-E.); (F.A.-S.)
| | - Daiana P. Rodrigues-de-Souza
- Department of Nursing, Pharmacology and Physical Therapy, University of Cordoba, 14004 Cordoba, Spain; (S.A.-C.); (L.G.-L.)
- Correspondence: ; Tel.: +34-957-218-241
| | - Sandra Alcaraz-Clariana
- Department of Nursing, Pharmacology and Physical Therapy, University of Cordoba, 14004 Cordoba, Spain; (S.A.-C.); (L.G.-L.)
| | - Lourdes García-Luque
- Department of Nursing, Pharmacology and Physical Therapy, University of Cordoba, 14004 Cordoba, Spain; (S.A.-C.); (L.G.-L.)
| | - Iago R. Martínez Sánchez
- Advanced Informatics Research Group (GIIA) TIC-252, University of Cordoba, 14014 Cordoba, Spain;
| | - Clementina López-Medina
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), 14004 Cordoba, Spain; (J.L.G.-C.); (I.C.A.-V.); (J.P.-A.); (C.G.-N.); (C.L.-M.); (E.C.-E.); (F.A.-S.)
- Department of Rheumatology, University Hospital Reina Sofía, 14004 Cordoba, Spain
- Department of Medical and Surgical Sciences, University of Cordoba, 14004 Cordoba, Spain
| | - Eduardo Collantes-Estévez
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), 14004 Cordoba, Spain; (J.L.G.-C.); (I.C.A.-V.); (J.P.-A.); (C.G.-N.); (C.L.-M.); (E.C.-E.); (F.A.-S.)
- Department of Rheumatology, University Hospital Reina Sofía, 14004 Cordoba, Spain
- Department of Medical and Surgical Sciences, University of Cordoba, 14004 Cordoba, Spain
| | - Francisco Alburquerque-Sendín
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), 14004 Cordoba, Spain; (J.L.G.-C.); (I.C.A.-V.); (J.P.-A.); (C.G.-N.); (C.L.-M.); (E.C.-E.); (F.A.-S.)
- Department of Nursing, Pharmacology and Physical Therapy, University of Cordoba, 14004 Cordoba, Spain; (S.A.-C.); (L.G.-L.)
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Noonan AM, Brown SHM. Paraspinal muscle pathophysiology associated with low back pain and spine degenerative disorders. JOR Spine 2021; 4:e1171. [PMID: 34611593 PMCID: PMC8479522 DOI: 10.1002/jsp2.1171] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 06/17/2021] [Accepted: 08/21/2021] [Indexed: 12/18/2022] Open
Abstract
Low back pain disorders affect more than 80% of adults in their lifetime and are the leading cause of global disability. The muscles attaching to the spine (ie, paraspinal muscles) are critical for proper spine health and play a crucial role in the functioning of the spine and whole body; however, reports of muscle dysfunction and insufficiency in chronic LBP (CLBP) patients are common. This article presents a review of the current understanding of the relationship between paraspinal muscle pathophysiology and spine-related disorders. Human literature demonstrates a clear association between altered muscle structure/function, most notably fatty infiltration and fibrosis, and low back pain disorders; other associations, including muscle cell atrophy and fiber type changes, are less clear. Animal literature then provides some mechanistic insight into the complex relationships, including initiating factors and time courses, between the spine and spine muscles under pathological conditions. It is apparent that spine pathology can directly lead to changes in the paraspinal muscle structure, function, and biology. It also appears that changes to the muscle structure and function can directly lead to changes in the spine (eg, deformity); however, this relationship is less well studied. Future work must focus on providing insight into possible mechanisms that regulate spine and paraspinal muscle health, as well as probing how muscle degeneration/dysfunction might be an initiating factor in the progression of spine pathology.
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Affiliation(s)
- Alex M. Noonan
- Department of Human Health and Nutritional SciencesUniversity of GuelphGuelphOntarioCanada
| | - Stephen H. M. Brown
- Department of Human Health and Nutritional SciencesUniversity of GuelphGuelphOntarioCanada
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Murata Y, Nakamura E, Tsukamoto M, Nakagawa T, Takeda M, Kozuma M, Kadomura T, Narusawa K, Shimizu K, Uchida S, Hayashi T, Sakai A. Longitudinal study of risk factors for decreased cross-sectional area of psoas major and paraspinal muscle in 1849 individuals. Sci Rep 2021; 11:16986. [PMID: 34417520 PMCID: PMC8379148 DOI: 10.1038/s41598-021-96448-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 08/06/2021] [Indexed: 12/13/2022] Open
Abstract
This 10-year retrospective observational study investigated longitudinal losses in psoas major and paraspinal muscle area in 1849 healthy individuals (1690 male, 159 female) screened using computed tomography. Logistic regression analysis revealed significant decreases in psoas major and paraspinal muscle area at 10 years relative to the baseline area regardless of age or sex, starting at 30 years of age. Only aging [≥ 50 s (odds ratio [OR]: 1.72; 95% confidence interval [CI] 1.05–2.84; p = 0.03) and ≥ 60 s (OR: 2.67; 95% CI 1.55–4.60; p < 0.001)] was a risk factor for decreases in psoas major area. Age ≥ 60 years (OR: 2.05; 95% CI 1.24–3.39; p = 0.005), body mass index ≥ 25 kg/m2 (OR: 1.32; 95% CI 1.01–1.73; p = 0.04), and visceral fat ≥ 100 cm2 (OR: 1.61; 95% CI 1.20–2.15; p = 0.001) were risk factors for decreases in paraspinal muscle area. Physical activity ≥ 900 kcal/week (OR: 0.68; 95% CI 0.50–0.94; p = 0.02) attenuated paraspinal muscle area loss in male. Our study demonstrated that walking > 45 min daily (Calories = METs (walking: 3.0) × duration of time (h) × weight (60 kg) × 1.05) can reduce paraspinal muscle loss, which may in turn decrease the risk of falls, low-back pain, and sarcopenia.
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Affiliation(s)
- Yoichi Murata
- Department of Orthopaedic Surgery, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishiku, Kitakyushu, Fukuoka, 8078555, Japan
| | - Eiichiro Nakamura
- Department of Orthopaedic Surgery, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishiku, Kitakyushu, Fukuoka, 8078555, Japan.
| | - Manabu Tsukamoto
- Department of Orthopaedic Surgery, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishiku, Kitakyushu, Fukuoka, 8078555, Japan
| | - Toru Nakagawa
- Occupational Health Section, Hitachi Health Care Center, Hitachi Ltd., 4-3-16 Osecho, Hitachi, Ibaraki, 3170076, Japan
| | - Masaru Takeda
- Occupational Health Section, Hitachi Health Care Center, Hitachi Ltd., 4-3-16 Osecho, Hitachi, Ibaraki, 3170076, Japan
| | - Mio Kozuma
- University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishiku, Kitakyushu, Fukuoka, 8078555, Japan
| | - Takayuki Kadomura
- Health Care Business Unit, Hitachi Ltd., 2 Shintoyofuta, Kashiwa, Chiba, 2770804, Japan
| | - Kenichiro Narusawa
- Department of Orthopaedic Surgery, Nakashibetsu Town Hospital, 9-1-1, 10-jo Minami, Nakashibetsu-cho Nishi, Hokkaido, 0861110, Japan
| | - Kenji Shimizu
- Department of Orthopaedic Surgery, Tobata Kyoritsu Hospital, 2-5-1 Sawami, Tobata, Kitakyushu, Fukuoka, 8040093, Japan
| | - Soshi Uchida
- Department of Orthopaedic Surgery and Sports Medicine, Wakamatsu Hospital of University of Occupational and Environmental Health, 1-17-1 Hamamachi, Wakamatsu, Kitakyushu, Fukuoka, 8080024, Japan
| | - Takeshi Hayashi
- Occupational Health Section, Hitachi Health Care Center, Hitachi Ltd., 4-3-16 Osecho, Hitachi, Ibaraki, 3170076, Japan
| | - Akinori Sakai
- Department of Orthopaedic Surgery, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishiku, Kitakyushu, Fukuoka, 8078555, Japan
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74
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Jung JM, Chung CK, Kim CH, Yang SH, Won YI, Choi Y. Effects of Total Psoas Area Index on Surgical Outcomes of Single-Level Lateral Lumbar Interbody Fusion. World Neurosurg 2021; 154:e838-e845. [PMID: 34411761 DOI: 10.1016/j.wneu.2021.08.031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 08/06/2021] [Accepted: 08/07/2021] [Indexed: 02/06/2023]
Abstract
OBJECTIVE We evaluated the effect of the total psoas area index (TPAI = total psoas muscle area [cm2]/height squared [m2]) on neurological complications and clinical outcomes after lateral lumbar interbody fusion and identified the appropriate TPAI to achieve a substantial clinical benefit (SCB). METHODS A consecutive series of 123 patients who had undergone single-level lateral lumbar interbody fusion at a single center with ≥2 years of follow-up were retrospectively reviewed. The patient characteristics and operative data were evaluated. The neurological complications were classified as transient and persistent symptoms. The visual analog scale score for back pain was assessed preoperatively and at 1 and 2 years postoperatively. RESULTS The present study included 31 men and 92 women. The mean TPAI was 8.97 cm2/m2 for the men and 5.04 cm2/m2 for the women. The mean TPAI was not significantly different between the patients with and without perioperative neurological complications. Multiple logistic regression analysis showed that solid interbody fusion was the most significant factor for achieving an SCB regarding back pain in men (odds ratio [OR], 2.453; P = 0.019) and women (OR, 2.906; P = 0.042). The TPAI was one of the predictors for achieving an SCB in men (OR, 1.251; P = 0.038) and women (OR, 1.795; P = 0.023). The optimal cutoff point of the TPAI for an SCB was 8.18 cm2/m2 for the men and 4.43 cm2/m2 for the women. CONCLUSIONS The TPAI had little effect on the incidence of perioperative neurological complications. However, the TPAI was identified as one of the predictors for achieving an SCB regarding back pain.
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Affiliation(s)
- Jong-Myung Jung
- Department of Neurosurgery, Spine Center, Gachon University Gil Medical Center, Gachon University College of Medicine, Incheon, Republic of Korea
| | - Chun Kee Chung
- Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea; Department of Brain and Cognitive Sciences, Seoul National University College of Natural Sciences, Seoul, Republic of Korea.
| | - Chi Heon Kim
- Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Seung Heon Yang
- Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Young Ii Won
- Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Yunhee Choi
- Division of Medical Statistics, Medical Research Collaborating Center, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
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75
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Xiao Y, Fortin M, Ahn J, Rivaz H, Peters TM, Battié MC. Statistical morphological analysis reveals characteristic paraspinal muscle asymmetry in unilateral lumbar disc herniation. Sci Rep 2021; 11:15576. [PMID: 34341427 PMCID: PMC8329062 DOI: 10.1038/s41598-021-95149-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 07/21/2021] [Indexed: 12/19/2022] Open
Abstract
Growing evidence suggests an association of lumbar paraspinal muscle morphology with low back pain (LBP) and lumbar pathologies. Unilateral spinal disorders provide unique models to study this association, with implications for diagnosis, prognosis, and management. Statistical shape analysis is a technique that can identify signature shape variations related to phenotypes but has never been employed in studying paraspinal muscle morphology. We present the first investigation using this technique to reveal disease-related paraspinal muscle asymmetry, using MRIs of patients with a single posterolateral disc herniation at the L5-S1 spinal level and unilateral leg pain. Statistical shape analysis was conducted to reveal disease- and phenotype-related morphological variations in the multifidus and erector spinae muscles at the level of herniation and the one below. With the analysis, shape variations associated with disc herniation were identified in the multifidus on the painful side at the level below the pathology while no pathology-related asymmetry in cross-sectional area (CSA) and fatty infiltration was found in either muscle. The results demonstrate higher sensitivity and spatial specificity for the technique than typical CSA and fatty infiltration measures. Statistical shape analysis holds promise in studying paraspinal muscle morphology to improve our understanding of LBP and various lumbar pathologies.
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Affiliation(s)
- Yiming Xiao
- Department of Computer Science and Software Engineering, Concordia University, Montreal, Canada. .,PERFORM Centre, Concordia University, Montreal, Canada.
| | - Maryse Fortin
- PERFORM Centre, Concordia University, Montreal, Canada.,Health, Kinesiology and Applied Physiology, Concordia University, Montreal, Canada
| | - Joshua Ahn
- Department of Kinesiology, Western University, London, Canada
| | - Hassan Rivaz
- PERFORM Centre, Concordia University, Montreal, Canada.,Department of Electrical and Computer Engineering, Concordia University, Montreal, Canada
| | - Terry M Peters
- Robarts Research Institute, Western University, London, Canada
| | - Michele C Battié
- School of Physical Therapy and Western's Bone and Joint Institute, Western University, London, Canada
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76
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Gao Y, Lyu X, Liu Q, Meng Y, Wang J, Pan S. Quantitative Evaluation of Hip Muscle Atrophy in Patients with Unilateral Slipped Capital Femoral Epiphysis Based on Magnetic Resonance Imaging. Acad Radiol 2021; 28:1125-1132. [PMID: 32540199 DOI: 10.1016/j.acra.2020.05.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 04/29/2020] [Accepted: 05/04/2020] [Indexed: 12/12/2022]
Abstract
RATIONALE AND OBJECTIVES Hip muscle atrophy commonly occurs in patients with unilateral slipped capital femoral epiphysis (SCFE), its effect in patients with unilateral SCFE is worthy of further investigation. This study aimed to investigate the relationship between hip muscle cross-sectional area (M-CSA) and unilateral SCFE using magnetic resonance imaging. MATERIALS AND METHODS Overall, 32 unilateral SCFE patients (SCFE group) and 15 asymptomatic subjects (control group) were evaluated. All patients underwent magnetic resonance imaging and frog-leg lateral radiograph examinations. M-CSA and Southwick angle were evaluated to calculate the M-CSA ratio of the affected side over the healthy side (A/H) ratio in the SCFE group and the control group. Associations between the A/H ratio, Southwick angle, and the disease time course were investigated with Spearman correlation test. An independent sample t-test, one-way analysis of variance tests, and intraclass correlation coefficients were also applied. RESULTS A/H ratios of the control group were significantly higher than those of the SCFE group (anterior muscles group: 1.09 ± 0.14 vs 0.86 ± 0.12, medial muscles group: 1.02 ± 0.15 vs 0.82 ± 0.18, posterior muscles group: 1.03 ± 0.07 vs 0.84 ± 0.11, all p < 0.01). A/H ratios of the medial and posterior muscle groups were significantly correlated with severity of SCFE (r = -0.504, p = 0.003, and r = -0.438, p = 0.012, respectively). CONCLUSION Hip muscle atrophy is associated with SCFE severity in patients with unilateral SCFE. The A/H ratio can reflect the patients' prognosis and rehabilitation status. Maintenance of hip muscle morphology and function may be beneficial to clinical performance and prognosis of patients with unilateral SCFE.
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77
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Shen H, Huang J, Zheng Q, Zhu Z, Lv X, Liu Y, Wang Y. A Deep-Learning-Based, Fully Automated Program to Segment and Quantify Major Spinal Components on Axial Lumbar Spine Magnetic Resonance Images. Phys Ther 2021; 101:6124778. [PMID: 33517461 DOI: 10.1093/ptj/pzab041] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 10/04/2020] [Accepted: 01/03/2021] [Indexed: 12/11/2022]
Abstract
OBJECTIVE The paraspinal muscles have been extensively studied on axial lumbar magnetic resonance imaging (MRI) for better understanding of back pain; however, the acquisition of measurements mainly relies on manual segmentation, which is time consuming. The study objective was to develop and validate a deep-learning-based program for automated acquisition of quantitative measurements for major lumbar spine components on axial lumbar MRIs, the paraspinal muscles in particular. METHODS This study used a cross-sectional observational design. From the Hangzhou Lumbar Spine Study, T2-weighted axial MRIs at the L4-5 disk level of 120 participants (aged 54.8 years [SD = 15.0]) were selected to develop the deep-learning-based program Spine Explorer (Tulong). Another 30 axial lumbar MRIs were automatically measured by Spine Explorer and then manually measured using ImageJ to acquire quantitative size and compositional measurements for bilateral multifidus, erector spinae, and psoas muscles; the disk; and the spinal canal. Intersection-over-union and Dice score were used to evaluate the performance of automated segmentation. Intraclass coefficients and Bland-Altman plots were used to examine intersoftware agreements for various measurements. RESULTS After training, Spine Explorer (Tulong) measures an axial lumbar MRI in 1 second. The intersections-over-union were 83.3% to 88.4% for the paraspinal muscles and 92.2% and 82.1% for the disk and spinal canal, respectively. For various size and compositional measurements of paraspinal muscles, Spine Explorer (Tulong) was in good agreement with ImageJ (intraclass coefficient = 0.85 to approximately 0.99). CONCLUSION Spine Explorer (Tulong) is automated, efficient, and reliable in acquiring quantitative measurements for the paraspinal muscles, the disk, and the canal, and various size and compositional measurements were simultaneously obtained for the lumbar paraspinal muscles. IMPACT Such an automated program might encourage further epidemiological studies of the lumbar paraspinal muscle degeneration and enhance paraspinal muscle assessment in clinical practice.
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Affiliation(s)
- Haotian Shen
- Spine Lab, Department of Orthopedic Surgery, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jiawei Huang
- Spine Lab, Department of Orthopedic Surgery, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Qiangqiang Zheng
- Spine Lab, Department of Orthopedic Surgery, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Zhiwei Zhu
- Department of Radiology, Dongyang People's Hospital, Dongyang, China
| | - Xiaoqiang Lv
- Department of Orthopedic Surgery, Dongyang People's Hospital, Dongyang, China
| | - Yong Liu
- Department of Control Science, Institute of Cyber-Systems and Control, Zhejiang University, Hangzhou, China
| | - Yue Wang
- Spine Lab, Department of Orthopedic Surgery, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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Sarto F, Spörri J, Fitze DP, Quinlan JI, Narici MV, Franchi MV. Implementing Ultrasound Imaging for the Assessment of Muscle and Tendon Properties in Elite Sports: Practical Aspects, Methodological Considerations and Future Directions. Sports Med 2021; 51:1151-1170. [PMID: 33683628 PMCID: PMC8124062 DOI: 10.1007/s40279-021-01436-7] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/06/2021] [Indexed: 12/16/2022]
Abstract
Ultrasound (US) imaging has been widely used in both research and clinical settings to evaluate the morphological and mechanical properties of muscle and tendon. In elite sports scenarios, a regular assessment of such properties has great potential, namely for testing the response to training, detecting athletes at higher risks of injury, screening athletes for structural abnormalities related to current or future musculoskeletal complaints, and monitoring their return to sport after a musculoskeletal injury. However, several practical and methodological aspects of US techniques should be considered when applying this technology in the elite sports context. Therefore, this narrative review aims to (1) present the principal US measures and field of applications in the context of elite sports; (2) to discuss, from a methodological perspective, the strengths and shortcomings of US imaging for the assessment of muscle and tendon properties; and (3) to provide future directions for research and application.
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Affiliation(s)
- Fabio Sarto
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Jörg Spörri
- Sports Medical Research Group, Department of Orthopaedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
- Department of Orthopaedics, University Centre for Prevention and Sports Medicine, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
| | - Daniel P Fitze
- Sports Medical Research Group, Department of Orthopaedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
| | - Jonathan I Quinlan
- School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, UK
- National Institute for Health Research, Birmingham Biomedical Research Centre at University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - Marco V Narici
- Department of Biomedical Sciences, University of Padova, Padova, Italy
- CIR-MYO Myology Centre, University of Padova, Padova, Italy
| | - Martino V Franchi
- Department of Biomedical Sciences, University of Padova, Padova, Italy.
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Fortin M, Rye M, Roussac A, Naghdi N, Macedo LG, Dover G, Elliott JM, DeMont R, Weber MH, Pepin V. The effects of combined motor control and isolated extensor strengthening versus general exercise on paraspinal muscle morphology and function in patients with chronic low back pain: a randomised controlled trial protocol. BMC Musculoskelet Disord 2021; 22:472. [PMID: 34022854 PMCID: PMC8141240 DOI: 10.1186/s12891-021-04346-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 05/10/2021] [Indexed: 12/31/2022] Open
Abstract
Background Exercise is a common approach for the management of patients with chronic non-specific low back pain (LBP). However, there is no clear mechanistic evidence or consensus on what type of exercise is more effective than others. While considerable evidence suggests a link between lumbar muscle health (e.g., atrophy and fatty infiltration) with functional deficits, it is unknown whether exercises targeting the lumbar spine can lead to noticeable improvements in muscle health and functional outcomes. The primary aim of this study is to compare the effect of combined motor control and isolated strengthening lumbar exercises (MC + ILEX) versus a general exercise group (GE) on multifidus muscle morphology (size and composition). Secondary aims include assessing the effect of the interventions on overall paraspinal muscle health, pain and disability, as well as psychological factors as possible effect modifiers. Methods A total of 50 participants with chronic non-specific LBP and moderate to severe disability, aged between 18 and 60, will be recruited from the local orthopaedic clinics and university community. Participants will be randomised (1:1) to either the MC + ILEX or GE group. Participants will undergo 24 individually supervised exercise sessions over a 12-week period. The primary outcome will be multifidus morphology (atrophy) and composition (fatty infiltration). Secondary outcomes will be muscle function (e.g., % thickness change during contraction), morphology, lumbar extension strength, pain intensity and disability. Potential treatment effect modifiers including maladaptive cognitions (fear of movement, catastrophizing), anxiety, depression, physical activity, and sleep quality will also be assessed. All measurements will be obtained at baseline, 6-week and 12-week; self-reported outcomes will also be collected at 24-week. Between-subjects repeated measure analysis of variance will be used to examine the changes in paraspinal muscle morphology over the different time points. Linear mixed models will be used to assess whether baseline scores can modify the response to the exercise therapy treatment. Discussion The results of this study will help clarify which of these two common interventions promote better results in terms of overall paraspinal muscle heath, back pain, disability and psychological factors in adults with chronic LBP. Trial registration NTCT04257253, registered prospectively on February 5, 2020.
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Affiliation(s)
- Maryse Fortin
- Department Health Kinesiology and Applied Physiology, Concordia University, 7141 Sherbrooke Street W, SP-165.29, Montreal, Quebec, H4B 1R6, Canada. .,PERFORM Centre, Concordia University, Montreal, Quebec, Canada. .,Centre de Recherche Interdisciplinaire en Réadaptation (CRIR), Montreal, Quebec, Canada.
| | - Meaghan Rye
- Department Health Kinesiology and Applied Physiology, Concordia University, 7141 Sherbrooke Street W, SP-165.29, Montreal, Quebec, H4B 1R6, Canada
| | - Alexa Roussac
- Department Health Kinesiology and Applied Physiology, Concordia University, 7141 Sherbrooke Street W, SP-165.29, Montreal, Quebec, H4B 1R6, Canada
| | - Neda Naghdi
- Department Health Kinesiology and Applied Physiology, Concordia University, 7141 Sherbrooke Street W, SP-165.29, Montreal, Quebec, H4B 1R6, Canada
| | - Luciana Gazzi Macedo
- School of Rehabilitation Science, McMaster University, Hamilton, Ontario, Canada
| | - Geoffrey Dover
- Department Health Kinesiology and Applied Physiology, Concordia University, 7141 Sherbrooke Street W, SP-165.29, Montreal, Quebec, H4B 1R6, Canada.,PERFORM Centre, Concordia University, Montreal, Quebec, Canada.,Centre de Recherche Interdisciplinaire en Réadaptation (CRIR), Montreal, Quebec, Canada
| | - James M Elliott
- Department of Physical Therapy and Human Movement Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.,Northern Sydney Local Health District, The Kolling Institute and Faculty of Health Sciences, The University of Sydney, Sydney, NSW, Australia
| | - Richard DeMont
- Department Health Kinesiology and Applied Physiology, Concordia University, 7141 Sherbrooke Street W, SP-165.29, Montreal, Quebec, H4B 1R6, Canada.,PERFORM Centre, Concordia University, Montreal, Quebec, Canada
| | - Michael H Weber
- Department of Orthopedic Surgery, McGill University Health Centre, Montreal, Quebec, Canada
| | - Véronique Pepin
- Department Health Kinesiology and Applied Physiology, Concordia University, 7141 Sherbrooke Street W, SP-165.29, Montreal, Quebec, H4B 1R6, Canada.,PERFORM Centre, Concordia University, Montreal, Quebec, Canada
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Ultrasound Imaging Analysis of the Lumbar Multifidus Muscle Echo Intensity: Intra-Rater and Inter-Rater Reliability of a Novice and an Experienced Rater. ACTA ACUST UNITED AC 2021; 57:medicina57050512. [PMID: 34065340 PMCID: PMC8160687 DOI: 10.3390/medicina57050512] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 05/05/2021] [Accepted: 05/17/2021] [Indexed: 11/29/2022]
Abstract
Background and Objectives: Ultrasound echo intensity (EI) of the lumbar multifidus muscle (LMM) could offer valuable insights regarding muscle quality in people with low back pain (LBP). However, whether the rater’s experience noticeably influences the reliability and precision of LMM EI measurements has not been established. The aims of this study were to investigate the intra-rater and inter-rater reliability of LMM EI measurements, and to compare the reliability and SEM between a novice and an experienced rater. Materials and Methods: Twenty athletes (10 females, 10 males) with a history of LBP were included in this study. Transverse ultrasound images of LMM were taken at L5 in prone. LMM EI measurements were obtained bilaterally by tracing the maximum ROI representing the LMM cross-sectional area (CSA), avoiding the inclusion of bone or surrounding fascia. All measurements were performed by two novice raters and an experienced researcher. Each measurement was acquired by each rater three times for each side on three different images, and the average was used in the analyses. Raters were blinded to each other’s measurements and the participant’s clinical information. Intra-class correlation coefficients (ICCs) were obtained to assess the intra-rater and inter-rater reliability. Results: The intra-rater ICC values for the LMM measurements for the experienced rater were excellent (ICC all > 0.997). The inter-rater reliability ICC values showed moderate to excellent reliability (0.614 to 0.994) and agreement between the novice raters and the experienced rater, except for Novice 1 for the right LMM, which revealed lower ICCs and a wider 95% CI. Intra-rater and inter-rater reliability results were similar when separately looking at the right and left side of the muscle and participant gender. Conclusions: Our findings support the clinical use of ultrasound imaging for the assessment of LMM EI in individuals with LBP.
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Do Markers of Inflammation and/or Muscle Regeneration in Lumbar Multifidus Muscle and Fat Differ Between Individuals with Good or Poor Outcome Following Microdiscectomy for Lumbar Disc Herniation? Spine (Phila Pa 1976) 2021; 46:678-686. [PMID: 33290379 DOI: 10.1097/brs.0000000000003863] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN Observational study. OBJECTIVE The aim of this study was to evaluate whether inflammatory and/or muscle regeneration markers in paraspinal tissues (multifidus muscle/fat) during microdiscectomy surgery in patients with lumbar disc herniation (LDH) with radiculopathy, differ between individuals with good or poor outcome. SUMMARY OF BACKGROUND DATA Structural back muscle changes, including fat infiltration, muscle atrophy, and fiber changes, are ubiquitous with LBP and are thought to be regulated by inflammatory and regeneration processes. Muscle changes might be relevant for recovery after microdiscectomy, but a link between expression of inflammatory and muscle regeneration genes in paraspinal tissues and clinical outcome has not been tested. METHOD Paraspinal tissues from deep multifidus muscles and fat (intramuscular, sub-cutaneous, epidural) were harvested from twenty-one patients with LDH undergoing microdiscectomy surgery. Quantitative polymerase chain reaction (qPCR) measured expression of 10 genes. Outcome was defined as good (visual analogue scale (VAS) low back pain (LBP)+) or poor (VAS LBP-) by an improvement of >33% or ≤33% on the pain VAS, respectively. Good functional improvement was defined as 25% improvement on the physical functioning scale (PFS). RESULTS Brain-derived neurotrophic factor expression in deep multifidus was 91% lower (P = 0.014) in the VAS LBP- than VAS LBP+ group. Expression of interleukin-1β in subcutaneous fat was 48% higher (P = 0.026) in the VAS LBP- than VAS LBP+ group. No markers differed based on PFS. CONCLUSION Results show a relationship between impaired muscle regeneration profile in multifidus muscle and poor outcome following microdiscectomy for LDH. Inflammatory dysregulation in subcutaneous fat overlying the back region might predict poor surgical outcome.Level of Evidence: 4.
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Abstract
Space travel has grown during the past 2 decades, and is expected to surge in the future with the establishment of an American Space Force, businesses specializing in commercial space travel, and National Aeronautics and Space Administration's planned sustained presence on the moon. Accompanying this rise, treating physicians are bracing for a concomitant increase in space-related medical problems, including back pain. Back pain is highly prevalent in astronauts and space travelers, with most cases being transient and self-limiting (space adaptation back pain). Pathophysiologic changes that affect the spine occur during space travel and may be attributed to microgravity, rapid acceleration and deceleration, and increased radiation. These include a loss of spinal curvature, spinal muscle atrophy, a higher rate of disc herniation, decreased proteoglycan and collagen content in intervertebral discs, and a reduction in bone density that may predispose people to vertebral endplate fractures. In this article, the authors discuss epidemiology, pathophysiology, prevention, treatment, and future research.
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83
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Han G, Jiang Y, Zhang B, Gong C, Li W. Imaging Evaluation of Fat Infiltration in Paraspinal Muscles on MRI: A Systematic Review with a Focus on Methodology. Orthop Surg 2021; 13:1141-1148. [PMID: 33942525 PMCID: PMC8274185 DOI: 10.1111/os.12962] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 01/27/2021] [Accepted: 01/28/2021] [Indexed: 12/16/2022] Open
Abstract
Purpose Numerous studies have applied a variety of methods to assess paraspinal muscle degeneration. However, the methodological differences in imaging evaluation may lead to imprecise or inconsistent results. This article aimed to provide a pragmatic summary review of the current imaging modalities, measurement protocols, and imaging parameters in the evaluation of paraspinal muscle fat infiltration (FI) in MRI studies. Methods Web of Science, EMBASE, and PubMed were searched from January 2005 to March 2020 to identify studies that examined the FI of paraspinal muscles on MRI among patients with lumbar degenerative diseases. Results Intramyocellular lipids measured by magnetic resonance spectroscopy and FI measured by chemical‐shift MRI were both correlated to low back pain and several degenerative lumbar diseases, whereas results on the relationship between FI and degenerative lumbar pathologies using conventional MRI were conflicting. Multi‐segment measurement of FI at the lesion segment and adjacent segments could be a prognostic indicator for lumbar surgery. Most studies adopted the center of the intervertebral disc or endplate as the level of slice to evaluate the FI. Compared with visual semiquantitative assessment, quantitative parameters appeared to be precise for eliminating individual or modality differences. It has been demonstrated that fat CSA/total CSA (based on area) and muscle–fat index (based on signal intensity) as quantitative FI parameters are associated with multiple lumbar diseases and clinical outcomes after surgery. Conclusion Having a good command of the methodology of paraspinal muscle FI on MRI was effective for diagnosis and prognosis in clinical practice.
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Affiliation(s)
- Gengyu Han
- Third Hospital Orthopaedics Department, Beijing Key Laboratory of Spinal Disease Research, Peking University, Beijing, China
| | - Yu Jiang
- Third Hospital Orthopaedics Department, Beijing Key Laboratory of Spinal Disease Research, Peking University, Beijing, China
| | - Bo Zhang
- Peking University Health Science Center, Beijing, China
| | - Chunjie Gong
- Peking University Health Science Center, Beijing, China
| | - Weishi Li
- Third Hospital Orthopaedics Department, Beijing Key Laboratory of Spinal Disease Research, Peking University, Beijing, China
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Paravertebral Muscles as Indexes of Sarcopenia and Sarcopenic Obesity: Comparison With Imaging and Muscle Function Indexes and Impact on Cardiovascular and Metabolic Disorders. AJR Am J Roentgenol 2021; 216:1596-1606. [PMID: 33852329 DOI: 10.2214/ajr.20.22934] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
OBJECTIVE. The objectives of this study were to propose the use of the cross-sectional area of paravertebral muscle (PMA) and the ratio of the PMA to the cross-sectional area of visceral fat (PVR) as new indexes of sarcopenia or sarcopenic obesity through comparison with existing indexes and to show the clinical associations of PMA and PVR with hypertension and diabetes. SUBJECTS AND METHODS. A total of 1270 participants (608 men and 662 women; mean [± SD] age, 63.57 ± 6.94 years) were recruited from a community-based population of elderly individuals. PMA and PVR were measured on single-slice abdominal CT images. Pearson correlation was used to evaluate the correlation of PMA and PVR with widely used imaging and muscle function indexes of sarcopenia and sarcopenic obesity. Tertile categories of PMA and PVR were evaluated to investigate associations with risks for hypertension and diabetes in men and women, by use of separate multivariable logistic regression models. RESULTS. PMA was correlated with the cross-sectional area of thigh muscle on CT, appendicular skeletal muscle mass (ASM) on dual-energy x-ray absorptiometry, height-adjusted ASM (calculated as ASM divided by the height in meters squared), and body mass index (BMI)-adjusted ASM (calculated as ASM divided by BMI) (p < .01). PMA was also correlated with hand grip strength and gait speeds (p < .01). PVR was correlated with height-adjusted ASM and BMI-adjusted ASM (p < .01). A high PVR significantly decreased the odds ratios for hypertension and diabetes in the unadjusted model and the model adjusted for age, smoking, and drinking status. The ratio of the cross-sectional area of thigh muscle to the cross-sectional area of visceral fat and the BMI-adjusted ASM produced results similar to those of PVR in terms of the odds ratios for hypertension and diabetes. CONCLUSION. Single-slice abdominal CT can supply PMA and visceral fat information together. PMA and PVR were found to be reliable indexes of sarcopenia and sarcopenic obesity. A high PVR was associated with low risks for hypertension and diabetes.
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Shepard N, Samim M, Kim Y, Razi A. A Practical Approach to Spine Magnetic Resonance Imaging. JBJS Rev 2021; 8:e0099. [PMID: 32224632 DOI: 10.2106/jbjs.rvw.19.00099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Magnetic resonance imaging (MRI) plays an important role in the evaluation of patients with spine disorders, providing excellent evaluation of both normal and pathologic anatomy. Interpreting MRI findings can be difficult as anatomic abnormalities may not correlate with clinical symptoms and MRI may show abnormal findings in asymptomatic individuals. Using a systematic approach to interpreting a spinal MRI can help to achieve an accurate diagnosis and guide therapeutic decision-making, surgical intervention, and treatment monitoring.
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Affiliation(s)
- Nicholas Shepard
- Departments of Orthopedic Surgery (N.S. and Y.K.) and Radiology (M.S.), NYU Langone Orthopedic Hospital, NYU Langone Health, New York, NY
| | - Mohammad Samim
- Departments of Orthopedic Surgery (N.S. and Y.K.) and Radiology (M.S.), NYU Langone Orthopedic Hospital, NYU Langone Health, New York, NY
| | - Yong Kim
- Departments of Orthopedic Surgery (N.S. and Y.K.) and Radiology (M.S.), NYU Langone Orthopedic Hospital, NYU Langone Health, New York, NY
| | - Afshin Razi
- Department of Orthopedic Surgery, Maimonides Hospital Center, Brooklyn, New York
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Hu X, Feng Z, Shen H, Zhang W, Huang J, Zheng Q, Wang Y. New MR-based measures for the evaluation of age-related lumbar paraspinal muscle degeneration. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2021; 30:2577-2585. [PMID: 33740145 DOI: 10.1007/s00586-021-06811-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 02/09/2021] [Accepted: 03/07/2021] [Indexed: 01/06/2023]
Abstract
PURPOSE Although signal intensity on T2W axial images is sensitive in detection of fatty infiltration to assess paraspinal muscle degeneration, it is affected by inhomogeneities of magnetic fields and individual variabilities. The purpose of this study was to propose reference adjusted signal measures on T2W axial images and determine their capacities in reflecting age-related lumbar paraspinal muscle degeneration. METHODS Lumbar MR images of 421 population-based subjects (177 men and 244 women, mean age 53.1 years, range 19.8-87.9 years) were studied. A custom software Spine Explore (Tulong 2.0) was used to automatically obtain paraspinal measurements of multifidus, erector spinae and psoas major. FCSA/TCSA was defined as functional cross-sectional area relative to total cross-sectional area of paraspinal muscle. Two new signal measures were canal-adjusted and cerebrospinal fluid (CSF)-adjusted signal, defined as the ratio between mean signal measurements and the mean signal of the canal and CSF. RESULTS The raw signal measurements of the paraspinal muscles were weakly correlated to age (r = 0.28-0.39, P < 0.001). When the signal of canal (r = 0.43-0.59, P < 0.001) or CSF (r = 0.45-0.61, P < 0.001) was used as reference, the correlations substantially increased. Signal measurements of three paraspinal muscles, adjusted or not, were strongly associated with Goutallier score (ρ = 0.60-0.65, P < 0.001) and FCSA/TCSA (r = -0.64 to -0.82, P < 0.001). Greater Goutallier score was associated with greater age (r = 0.38-0.60, P < 0.001), while Lumbar indentation value (LIV) not. CONCLUSION On routine T2W axial MR images the adjusted signal measurements using an internal reference of CSF or canal can better reflect age-related degenerative changes in the paraspinal muscles.
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Affiliation(s)
- Xiaojian Hu
- Spine Lab, Department of Orthopedic Surgery, School of Medicine, The First Affiliated Hospital, Zhejiang University, 79# Qingchun Road, Hangzhou, China
| | - Zhiyun Feng
- Spine Lab, Department of Orthopedic Surgery, School of Medicine, The First Affiliated Hospital, Zhejiang University, 79# Qingchun Road, Hangzhou, China
| | - Haotian Shen
- Spine Lab, Department of Orthopedic Surgery, School of Medicine, The First Affiliated Hospital, Zhejiang University, 79# Qingchun Road, Hangzhou, China
| | - Wenming Zhang
- Department of Orthopedic Surgery, Jinyun People's Hospital, Lishui, China
| | - Jiawei Huang
- Spine Lab, Department of Orthopedic Surgery, School of Medicine, The First Affiliated Hospital, Zhejiang University, 79# Qingchun Road, Hangzhou, China
| | - Qiangqiang Zheng
- Spine Lab, Department of Orthopedic Surgery, School of Medicine, The First Affiliated Hospital, Zhejiang University, 79# Qingchun Road, Hangzhou, China
| | - Yue Wang
- Spine Lab, Department of Orthopedic Surgery, School of Medicine, The First Affiliated Hospital, Zhejiang University, 79# Qingchun Road, Hangzhou, China.
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Trunk Muscle Mass Measured by Bioelectrical Impedance Analysis Reflecting the Cross-Sectional Area of the Paravertebral Muscles and Back Muscle Strength: A Cross-Sectional Analysis of a Prospective Cohort Study of Elderly Population. J Clin Med 2021; 10:jcm10061187. [PMID: 33809059 PMCID: PMC8001452 DOI: 10.3390/jcm10061187] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 02/27/2021] [Accepted: 03/01/2021] [Indexed: 12/30/2022] Open
Abstract
Trunk muscles play an important role in supporting the spinal column. A decline in trunk muscle mass, as measured by bioelectrical impedance analysis (TMM-BIA), is associated with low back pain and poor quality of life. The purpose of this study was to determine whether TMM-BIA correlates with quantitative and functional assessments traditionally used for the trunk muscles. We included 380 participants (aged ≥ 65 years; 152 males, 228 females) from the Shiraniwa Elderly Cohort (Shiraniwa) study, for whom the following data were available: TMM-BIA, lumbar magnetic resonance imaging (MRI), and back muscle strength (BMS). We measured the cross-sectional area (CSA) and fat-free CSA of the paravertebral muscles (PVM), including the erector spinae (ES), multifidus (MF), and psoas major (PM), on an axial lumbar MRI at L3/4. The correlation between TMM-BIA and the CSA of PVM, fat-free CSA of PVM, and BMS was investigated. TMM-BIA correlated with the CSA of total PVM and each individual PVM. A stronger correlation between TMM-BIA and fat-free CSA of PVM was observed. The TMM-BIA also strongly correlated with BMS. TMM-BIA is an easy and reliable way to evaluate the trunk muscle mass in a clinical setting.
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Gibbons D, Ahern DP, Curley AE, Kepler CK, Butler JS. Impact of Sarcopenia on Degenerative Lumbar Spondylosis. Clin Spine Surg 2021; 34:43-50. [PMID: 33633055 DOI: 10.1097/bsd.0000000000001047] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Accepted: 05/22/2020] [Indexed: 12/25/2022]
Abstract
Sarcopenia is characterized by progressive age-related and systematic loss of skeletal muscle mass, strength, and function. It was classified as an independent disease in 2016; thus, there is a sparsity of research on the association of sarcopenia with lower back pain and spinal diseases. Its prevalence is around 10% worldwide and it has been shown to be detrimental to quality of life in the elderly. Sarcopenia can be clinically identified by assessing muscle mass and physical performance measurements to show reduced strength (eg, grip strength chair rise and knee extensions) or function (eg, walking speed or distance). Radiographic imaging techniques such as computed tomography, ultrasound, or magnetic resonance imaging help diagnose sarcopenia in the lumbar spine by measuring either the cross-sectional area or the fatty infiltrate of the lumbar musculature. The presence of sarcopenia in patients preoperatively may lead to worse postoperative outcomes. Research in the treatment options for sarcopenia presurgery is still in its infancy but exercise (both aerobic and resistance exercise have been found to slow down the rate of decline in muscle mass and strength with aging) and nutrition have been utilized to varying success and show great promise in the future.
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Affiliation(s)
- Denys Gibbons
- The National Spinal Injuries Unit The Mater Hospital
| | | | | | - Christopher K Kepler
- Department of Orthopaedic Surgery, Rothman Institute, Thomas Jefferson University, Philadelphia, PA
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The effects of exposure to microgravity and reconditioning of the lumbar multifidus and anterolateral abdominal muscles: implications for people with LBP. Spine J 2021; 21:477-491. [PMID: 32966906 DOI: 10.1016/j.spinee.2020.09.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 08/02/2020] [Accepted: 09/16/2020] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT One of the primary changes in the neuromuscular system in response to microgravity is skeletal muscle atrophy, which occurs especially in muscles that maintain posture while being upright on Earth. Reduced size of paraspinal and abdominal muscles has been documented after spaceflight. Exercises are undertaken on the International Space Station (ISS) during and following space flight to remediate these effects. Understanding the adaptations which occur in trunk muscles in response to microgravity could inform the development of specific countermeasures, which may have applications for people with conditions on Earth such as low back pain (LBP). PURPOSE The aim of this study was to examine the changes in muscle size and function of the lumbar multifidus (MF) and anterolateral abdominal muscles (1) in response to exposure to 6 months of microgravity on the ISS and (2) in response to a 15-day reconditioning program on Earth. DESIGN Prospective longitudinal series. PATIENT SAMPLE Data were collected from five astronauts who undertook seven long-duration missions on the ISS. OUTCOME MEASURES For the MF muscle, measures included cross-sectional area (CSA) and linear measures to assess voluntary isometric contractions at vertebral levels L2 to L5. For the abdominal muscles, the thickness of the transversus abdominis (TrA), obliquus internus abdominis (IO) and obliquus externus abdominis (EO) muscles at rest and on contraction were measured. METHODS Ultrasound imaging of trunk muscles was conducted at four timepoints (preflight, postflight, mid-reconditioning, and post reconditioning). Data were analyzed using multilevel linear models to estimate the change in muscle parameters of interest across three time periods. RESULTS Beta-coefficients (estimates of the expected change in the measure across the specified time period, adjusted for the baseline measurement) indicated that the CSA of the MF muscles decreased significantly at all lumbar vertebral levels (except L2) in response to exposure to microgravity (L3=12.6%; L4=6.1%, L5=10.3%; p<.001), and CSAs at L3-L5 vertebral levels increased in the reconditioning period (p<.001). The thickness of the TrA decreased by 34.1% (p<.017), IO decreased by 15.4% (p=.04), and the combination of anterolateral abdominal muscles decreased by 16.2% (p<.001) between pre- and postflight assessment and increased (TrA<0.008; combined p=.035) during the postreconditioning period. Results showed decreased contraction of the MF muscles at the L2 (from 12.8% to 3.4%; p=.007) and L3 (from 12.2% to 5%; p=.032) vertebral levels following exposure to microgravity which increased (L2, p=.046) after the postreconditioning period. Comparison with preflight measures indicated that there were no residual changes in muscle size and function after the postreconditioning period, apart from CSA of MF at L2, which remained 15.3% larger than preflight values (p<.001). CONCLUSIONS In-flight exercise countermeasures mitigated, but did not completely prevent, changes in the size and function of the lumbar MF and anterolateral abdominal muscles. Many of the observed changes in size and control of the MF and abdominal muscles that occurred in response to prolonged exposure to microgravity paralleled those seen in people with LBP or exposed to prolonged bed rest on Earth. Daily individualized postflight reconditioning, which included both motor control training and weight-bearing exercises with an emphasis on retraining strength and endurance to re-establish normal postural alignment with respect to gravity, restored the decreased size and control of the MF (at the L3-L5 vertebral levels) and anterolateral abdominal muscles. Drawing parallels between changes which occur to the neuromuscular system in microgravity and which exercises best recover muscle size and function could help health professionals tailor improved interventions for terrestrial populations. Results suggested that the principles underpinning the exercises developed for astronauts following prolonged exposure to microgravity (emphasizing strength and endurance training to re-establish normal postural alignment and distribution of load with respect to gravity) can also be applied for people with chronic LBP, as the MF and anterolateral abdominal muscles were affected in similar ways in both populations. The results may also inform the development of new astronaut countermeasures targeting the MF and abdominal muscles.
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Zhang Y, Mandelli F, Mündermann A, Nüesch C, Kovacs B, Schären S, Netzer C. Association between fatty infiltration of paraspinal muscle, sagittal spinopelvic alignment and stenosis grade in patients with degenerative lumbar spinal stenosis. NORTH AMERICAN SPINE SOCIETY JOURNAL (NASSJ) 2021; 5:100054. [PMID: 35141619 PMCID: PMC8820068 DOI: 10.1016/j.xnsj.2021.100054] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/18/2021] [Accepted: 02/19/2021] [Indexed: 11/30/2022]
Abstract
Introduction Sagittal balance and fatty infiltration of paraspinal muscle are important factors in patients with lumbar spinal stenosis (LSS) that may affect patients’ quality of life. Sagittal spinopelvic parameters and fatty infiltration may be associated with the severity of LSS. The purpose of this study was to test the hypothesis that severity of fatty infiltration correlates with severity of LSS and with sagittal pelvic alignment independent of age. Methods Age and body mass index (BMI) were extracted. Fatty infiltration was rated according to Goutallier classification and the severity of LSS was graded according to Schizas at five intervertebral disc levels. Overall fatty infiltration was computed as average fatty infiltration (aFI) and severity of LSS was defined as the highest severity of LSS of all segments. The sagittal spinopelvic parameters pelvic incidence (PI), pelvic tilt (PT), sacral slope (SS), lumbar lordosis (LL) and PI-LL were measured. Associations among parameters were assessed using Spearman correlation coefficients adjusted for age (α = 0.05). Results 165 LSS patients with a median age of 69 years were included. All parameters correlated with age (R>0.162, P<0.05) except BMI and LL (R<0.007, P>0.05). aFI correlated with PI, PT and PI-LL before (R>0.371, P<0.05) and after (R>0.180, P<0.05) adjusting for age. Severity of LSS correlated with PI, PT and PI-LL before (R>0.187, P<0.05) but not after (R<0.130, P>0.05) adjusting for age. aFI correlated with severity of LSS before (R=0.349, P<0.05) but not (R=0.114, P>0.05) after adjusting for age. Conclusions The correlation of aFI with sagittal spinopelvic parameters indicates that there might be a relationship between muscle characteristics and the sagittal alignment. Sagittal spinopelvic parameters and fatty infiltration of paraspinal muscles are not associated with radiological severity of LSS. Whether they are associated with clinical manifestation of LSS remains to be investigated.
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91
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Research Progress on the Mechanism of Lumbarmultifidus Injury and Degeneration. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6629037. [PMID: 33728023 PMCID: PMC7936897 DOI: 10.1155/2021/6629037] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 01/26/2021] [Accepted: 02/09/2021] [Indexed: 01/15/2023]
Abstract
This review summarizes recent research progress in the clinical features, image manifestations, and pathological mechanism of multifidus injury. After a brief introduction to the fiber classification, innervation, blood supply, and multifidus function, some factors of multifidus injury, consisting of denervation, intraoperative incision selection and traction, and lumbar degenerative disease are overviewed. In addition, the clinical index of multifidus injury including myoglobin, creatine kinase, IL-6, C-reactive protein, the cross-sectional area of multifidus, the degree of fat infiltration, and intraoperative biopsy are summarized. Furthermore, we recommend that patients with chronic low back pain should take the long-term exercise of lumbodorsal muscles. Finally, some remaining issues, including external fixation and the imaging quantitative evaluation criteria of multifidus, need to be further explored in the future.
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Purushotham S, Stephenson RS, Sanderson A, Falla D. Microscopic changes in the spinal extensor musculature in patients experiencing chronic spinal pain: protocol for a systematic review. BMJ Open 2021; 11:e042729. [PMID: 33619189 PMCID: PMC7903124 DOI: 10.1136/bmjopen-2020-042729] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
INTRODUCTION Chronic spinal pain (CSP) is the most common musculoskeletal disorder and is a leading cause of disability as per the Global Burden of Diseases. Previous reviews of microscopic changes in the spinal extensor muscles of people with CSP have focused on the lumbar region only and the results have been inconclusive. Therefore, in this protocol, we aim to assess microscopic changes in the extensor muscles of all spinal regions, investigating regionally specific changes in muscle fibre types of the spinal extensor muscles in patients with non-specific CSP. METHODS/ANALYSIS This protocol was designed using Preferred Reporting Items for Systematic Review and Meta-Analysis Protocols (PRISMA-P) guidelines. Searches will use the following databases: MEDLINE, Embase, PubMed, CINAHL Plus and Web of Science along with relevant grey literature searches. Two reviewers will conduct the searches, perform data extraction, apply inclusion criteria and conduct risk of bias assessment using Newcastle-Ottawa Scale. Data will be synthesised and analysed independently. If there is sufficient homogeneity, then meta-analysis will be conducted by the reviewers jointly. If not, meta-synthesis or narrative reporting will be performed. The quality of the evidence will be assessed using Grading of Recommendations, Assessment, Development and Evaluation (GRADE) guidelines. ETHICS AND DISSEMINATION The results of this study will be submitted for publication to a peer-reviewed journal and will be presented at conferences. Ethical approval for this systematic review was not required due to no patient data being collated. PROSPERO REGISTRATION NUMBER CRD42020198087.
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Affiliation(s)
- Shilpa Purushotham
- Centre of Precision Rehabilitation for Spinal Pain (CPR Spine), School of Sports, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, UK
- Anatomy Department, Birmingham Medical School, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Robert Stanley Stephenson
- Anatomy Department, Birmingham Medical School, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Andy Sanderson
- Centre of Precision Rehabilitation for Spinal Pain (CPR Spine), School of Sports, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, UK
- Department of Sport and Exercise Sciences, Musculoskeletal Science and Sports Medicine Research Centre, Manchester Metropolitan University, Manchester, UK
| | - Deborah Falla
- Centre of Precision Rehabilitation for Spinal Pain (CPR Spine), School of Sports, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, UK
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Provenzano DA, Heller JA, Hanes MC. Current Perspectives on Neurostimulation for the Management of Chronic Low Back Pain: A Narrative Review. J Pain Res 2021; 14:463-479. [PMID: 33628045 PMCID: PMC7899039 DOI: 10.2147/jpr.s249580] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Accepted: 12/16/2020] [Indexed: 01/29/2023] Open
Abstract
Neurostimulation techniques for the treatment of chronic low back pain (LBP) have been rapidly evolving; however, questions remain as to which modalities provide the most efficacious and durable treatment for intractable axial symptoms. Modalities of spinal cord stimulation, such as traditional low-frequency paresthesia based, high-density or high dose (HD), burst, 10-kHz high-frequency therapy, closed-loop, and differential target multiplexed, have been limitedly studied to determine their efficacy for the treatment of axial LBP. In addition, stimulation methods that target regions other than the spinal cord, such as medial branch nerve stimulation of the multifidus muscles and the dorsal root ganglion may also be viable treatment options. Here, current scientific evidence behind neurostimulation techniques have been reviewed with a focus on the management of chronic axial LBP.
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Affiliation(s)
- David A Provenzano
- Pain Diagnostics and Interventional Care, Sewickley, PA, USA.,Western PA Surgery Center, Wexford, PA, USA
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The structural, functional and electrophysiological assessment of paraspinal musculature of patients with ankylosing spondylitis and non-radiographic axial spondyloarthropathy. Rheumatol Int 2021; 41:595-603. [PMID: 33502552 DOI: 10.1007/s00296-020-04781-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 12/29/2020] [Indexed: 12/20/2022]
Abstract
Paravertebral muscles are affected in spondyloarthritis. Decreased mobility of spine may lead to atrophy and fatty degeneration of these muscles. The objective of this study was to compare the sonographic, electrophysiological and magnetic resonance imaging (MRI) features of paraspinal muscles between patients with ankylosing spondylitis (AS) and non-radiographic axial spondyloarthritis (nr-axSpA). The patients who were diagnosed as AS with modified New York criteria and those as nr-axSpA with ASAS 2009 criteria were enrolled. Clinical evaluation, electrophysiological examination including nerve conduction studies and needle electromyography (EMG) for lower extremities and paraspinal mapping (PSM) were performed by the first examiner. The second examiner measured lumbar multifidus areas, graded the fatty degeneration of the muscle at different levels in T2 weighted axial MRI and also performed the ultrasonographic evaluation. A total of 19 patients with AS and 14 patients with nr-axSpA were evaluated. MRI of 2 patients with AS could not be obtained. Right lumbar multifidus area/vertebra area (MV ratio) was smaller in AS patients at L3 level (p 0,029); there were no significant differences in other levels. Fatty degeneration was also higher in AS patients in left multifidus at L5-S1 disc level (p 0,015). PSM scores that demonstrate the extent of denervation in paraspinal muscles were significantly higher in AS patients than in nr-axSpA patients (p < 0,001). Patients with AS have more fatty degeneration and denervation in paraspinal muscles. These processes may also contribute the severity of pain and disability. The relationship between paraspinal muscle denervation and progression of fatty degeneration should further be revealed.
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95
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Lee B, Lee SE, Kim YH, Park JH, Lee KH, Kang E, Kim S, Lee N, Oh D. Severe Atrophy of the Ipsilateral Psoas Muscle Associated with Hip Osteoarthritis and Spinal Stenosis-A Case Report. ACTA ACUST UNITED AC 2021; 57:medicina57010073. [PMID: 33467547 PMCID: PMC7830484 DOI: 10.3390/medicina57010073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 01/11/2021] [Accepted: 01/14/2021] [Indexed: 12/05/2022]
Abstract
Pathology of the lumbar spine and hip joint can commonly coexist in the elderly. Anterior and lateral leg pain as symptoms of hip osteoarthritis and spinal stenosis can closely resemble each other, with only subtle differences in both history and physical examinations. It is not easy to identify the origin of this kind of hip pain. The possibility of hip osteoarthritis should not be underestimated, as this could lead to an incorrect diagnosis and inappropriate spinal surgery. We report the case of a 54-year-old female with chronic right anterior and lateral leg pain who did not respond to repeated spinal blocks based on lumbar MRI, but in whom hip osteoarthritis was considered since severe atrophy of the ipsilateral psoas muscle was identified. We suggest that severe psoas muscle atrophy can be a clinical clue to identify hip osteoarthritis and is related to lower extremity pain, even if there is a coexisting lumbar spine pathology.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Daeseok Oh
- Correspondence: ; Tel.: +82-51-797-0415; Fax: +82-51-797-2669
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Son S, Lee SG, Kim WK, Ahn Y, Jung JM. Disc height discrepancy between supine and standing positions as a screening metric for discogenic back pain in patients with disc degeneration. Spine J 2021; 21:71-79. [PMID: 32687982 DOI: 10.1016/j.spinee.2020.07.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 07/14/2020] [Accepted: 07/14/2020] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT The diagnosis of discogenic low back pain (LBP) from disc degeneration of the lumbar spine is often evaluated with discography. Noninvasive, simple screening methods other than invasive discography are useful, as evidence supporting clinical findings and magnetic resonance imaging (MRI) have come to the forefront. PURPOSE To investigate disc height (DH) discrepancy between supine and standing positions on simple radiography to clarify its clinical screening value in individuals with discogenic LBP. STUDY DESIGN/SETTINGS Retrospective matched cohort design. PATIENT SAMPLE Ninety-two patients with early to middle stage disc degeneration (Pfirrmann grade II, III, or IV). OUTCOME MEASURES Each subject underwent simple radiographs and MRI. Baseline characteristics, including demographic data and MRI findings, and radiological findings, including DH discrepancy, segmental angle, and sagittal balance, were analyzed. DH discrepancy ratio was calculated as (1 - [calibrated DH on standing radiography/calibrated DH on supine radiography]) × 100%. METHODS We matched LBP group of 46 patients with intractable discogenic pain (≥7 of visual analog scale scores) confirmed by discography with control group of 46 patients with similar stage disc degeneration with mild LBP (≤4 of visual analog scale scores). Binary regression analysis, receiver operating characteristic curve analysis, and cut-off value for diagnosis were used to evaluate and clarify diagnostic value of various factors. RESULTS There was no significant difference between the two groups in terms of baseline characteristics, including age, sex, body mass index, pathological level, and magnetic resonance findings such as disc degeneration, high intensity zone, and para-spinal muscle volume. Among the various radiological findings, the calibrated mean DH in the standing position (20.87±5.65 [LBP group] vs. 26.95±3.02 [control group], p<.001) and the DH discrepancy ratio (14.55±6.13% [LBP group] vs. 1.47±0.75% [control group], p=.007) were significantly different between the two groups. The cut-off value for DH discrepancy ratio to screen discogenic LBP was ≥6.04%. Additionally, as a compensation for pain, sagittal vertical axis (3.43±2.03 cm [LBP group] vs. -0.54±3.05 cm [control group], p=.002) and pelvic incidence (54.74±6.76° [LBP group] vs. 43.98±8.67° [control group]; p=.006) were different between the two groups. CONCLUSIONS The results suggest that DH discrepancy between the supine and standing positions could be a screening metric for discogenic LBP in early to middle stage disc degeneration of the lumbar spine.
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Affiliation(s)
- Seong Son
- Department of Neurosurgery, Gil Medical Center, Gachon University College of Medicine, Nadong-Gu, Incheon, 21565, South Korea.
| | - Sang Gu Lee
- Department of Neurosurgery, Gil Medical Center, Gachon University College of Medicine, Nadong-Gu, Incheon, 21565, South Korea
| | - Woo Kyung Kim
- Department of Neurosurgery, Gil Medical Center, Gachon University College of Medicine, Nadong-Gu, Incheon, 21565, South Korea
| | - Yong Ahn
- Department of Neurosurgery, Gil Medical Center, Gachon University College of Medicine, Nadong-Gu, Incheon, 21565, South Korea
| | - Jong Myung Jung
- Department of Neurosurgery, Gil Medical Center, Gachon University College of Medicine, Nadong-Gu, Incheon, 21565, South Korea
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王 伟, 李 危, 陈 仲. [Progress on the evaluation method of paraspinal muscle and its correlation with lumbar diseases]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2020; 34:1462-1467. [PMID: 33191707 PMCID: PMC8171695 DOI: 10.7507/1002-1892.201912120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Revised: 04/21/2020] [Indexed: 11/03/2022]
Abstract
OBJECTIVE To review the evaluation method of paraspinal muscle and its role in lumbar spine diseases, and offer reference for further research on paraspinal muscles. METHODS The related literature of paraspinal muscle measurement and its role in lumbar spine diseases was reviewed. The evaluation methods of paraspinal muscle were analyzed from the advantages and disadvantages and the role of paraspinal muscle in lumbar spine diseases was summarized. RESULTS Radiographic methods are often used to evaluate the atrophy of paraspinal muscle, mainly including CT and MRI. The cross-sectional area and fatty infiltration of paraspinal muscle are two key parameters. Radiographic methods are reproducible and widely applied, but CT has the disadvantage of radiation exposure, while the cost of MRI is high. Besides, more and more researchers focus on the functional evaluation of paraspinal muscle, which mainly includes surface electromyogram analysis and back muscle strength test. The surface electromyogram analysis can quantitatively measure neuromuscular function, but the results could be affected by many influencing factors. The back muscle strength test is simple, but it lacks standardized posture. The atrophy of paraspinal muscle is related to many lumbar spine diseases, while the results of different researches are different. CONCLUSION There are many methods to evaluate paraspinal muscles, but there is no unified standard. The role of paraspinal muscle in lumbar spine diseases need to be further studied.
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Affiliation(s)
- 伟 王
- 北京大学第三医院骨科(北京 100191)Department of Orthopedics, Peking University Third Hospital, Beijing, 100191, P.R.China
- 北京大学医学部(北京 100191)Peking University Health Science Center, Beijing, 100191, P.R.China
| | - 危石 李
- 北京大学第三医院骨科(北京 100191)Department of Orthopedics, Peking University Third Hospital, Beijing, 100191, P.R.China
| | - 仲强 陈
- 北京大学第三医院骨科(北京 100191)Department of Orthopedics, Peking University Third Hospital, Beijing, 100191, P.R.China
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Ogon I, Iba K, Takashima H, Yoshimoto M, Morita T, Oshigiri T, Terashima Y, Emori M, Teramoto A, Takebayashi T, Yamashita T. Magnetic Resonance Spectroscopic Analysis of Multifidus Muscle Lipid Contents and Association with Nociceptive Pain in Chronic Low Back Pain. Asian Spine J 2020; 15:441-446. [PMID: 33108847 PMCID: PMC8377217 DOI: 10.31616/asj.2020.0247] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 07/04/2020] [Indexed: 12/19/2022] Open
Abstract
Study Design Cross-sectional study. Purpose This study aimed to analyze the differences in the lipid contents in chronic low back pain (CLBP) patients with nociceptive pain (NocP) and neuropathic pain (NeP) using magnetic resonance spectroscopy (MRS) of the multifidus muscle (Mm). Overview of Literature Early identification of the pain characteristics with CLBP is important because specific treatment approaches are required, depending on NocP and NeP. Methods The participants were 50 patients with CLBP (23 men and 27 women; mean age, 63.1±17.8 years; range, 41–79 years). We compared the Visual Analog Scale (VAS) scores, intramyocellular lipids (IMCLs) and extramyocellular lipids (EMCLs) of the Mm in NocP and NeP groups, as evaluated with the Japanese NeP screening questionnaire. Results The patients were categorized into the NocP (n=32) and NeP (n=18) groups. The mean VAS score of the NocP group was 59.3±3.1 mm and that of the NeP group was 73.6±4.6 mm. The mean VAS score was significantly higher in the NeP group as compared to that in the NocP group (p<0.01). As per the analysis of covariance for the VAS score, the mean IMCL levels of the Mm in the NocP and NeP groups were 722.3 mmol/L (95% confidence interval [CI], 611.4–833.1) and 484.8 mmol/L (95% CI, 381.1–588.5), respectively. The mean IMCL level was significantly higher in the NocP group than in the NeP group (p<0.05). The mean EMCL levels of the Mm for the NocP and NeP groups were 6,022.9 mmol/L (95% CI, 4,510.6–7,535.2) and 5,558.1 mmol/L (95% CI, 4,298.3–6,817.9), respectively; however, the difference was not significant (p=0.72). Conclusions The results indicated an association between the IMCL level of the Mm and NocP. Our results suggest that MRS of the Mm might be beneficial for the assessment of CLBP as well as appropriate targeted analgesic therapies.
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Affiliation(s)
- Izaya Ogon
- Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Kouske Iba
- Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Hiroyuki Takashima
- Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Mitsunori Yoshimoto
- Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Tomonori Morita
- Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Tsutomu Oshigiri
- Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Yoshinori Terashima
- Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Makoto Emori
- Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Atsushi Teramoto
- Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Tsuneo Takebayashi
- Department of Orthopaedic Surgery, Sapporo Maruyama Orthopaedic Hospital, Sapporo, Japan
| | - Toshihiko Yamashita
- Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
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Belasso CJ, Behboodi B, Benali H, Boily M, Rivaz H, Fortin M. LUMINOUS database: lumbar multifidus muscle segmentation from ultrasound images. BMC Musculoskelet Disord 2020; 21:703. [PMID: 33097024 PMCID: PMC7585198 DOI: 10.1186/s12891-020-03679-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 09/28/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Among the paraspinal muscles, the structure and function of the lumbar multifidus (LM) has become of great interest to researchers and clinicians involved in lower back pain and muscle rehabilitation. Ultrasound (US) imaging of the LM muscle is a useful clinical tool which can be used in the assessment of muscle morphology and function. US is widely used due to its portability, cost-effectiveness, and ease-of-use. In order to assess muscle function, quantitative information of the LM must be extracted from the US image by means of manual segmentation. However, manual segmentation requires a higher level of training and experience and is characterized by a level of difficulty and subjectivity associated with image interpretation. Thus, the development of automated segmentation methods is warranted and would strongly benefit clinicians and researchers. The aim of this study is to provide a database which will contribute to the development of automated segmentation algorithms of the LM. CONSTRUCTION AND CONTENT This database provides the US ground truth of the left and right LM muscles at the L5 level (in prone and standing positions) of 109 young athletic adults involved in Concordia University's varsity teams. The LUMINOUS database contains the US images with their corresponding manually segmented binary masks, serving as the ground truth. The purpose of the database is to enable development and validation of deep learning algorithms used for automatic segmentation tasks related to the assessment of the LM cross-sectional area (CSA) and echo intensity (EI). The LUMINOUS database is publicly available at http://data.sonography.ai . CONCLUSION The development of automated segmentation algorithms based on this database will promote the standardization of LM measurements and facilitate comparison among studies. Moreover, it can accelerate the clinical implementation of quantitative muscle assessment in clinical and research settings.
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Affiliation(s)
- Clyde J. Belasso
- Department of Electrical and Computer Engineering, Concordia University, Montreal, H3G 1M8 Canada
- PERFORM Centre, Concordia University, Montreal, H4B 1R6 Canada
| | - Bahareh Behboodi
- Department of Electrical and Computer Engineering, Concordia University, Montreal, H3G 1M8 Canada
- PERFORM Centre, Concordia University, Montreal, H4B 1R6 Canada
| | - Habib Benali
- Department of Electrical and Computer Engineering, Concordia University, Montreal, H3G 1M8 Canada
- PERFORM Centre, Concordia University, Montreal, H4B 1R6 Canada
| | - Mathieu Boily
- PERFORM Centre, Concordia University, Montreal, H4B 1R6 Canada
- Department of Diagnostic Radiology, McGill University, Montreal, H3G 1A4 Canada
| | - Hassan Rivaz
- Department of Electrical and Computer Engineering, Concordia University, Montreal, H3G 1M8 Canada
- PERFORM Centre, Concordia University, Montreal, H4B 1R6 Canada
| | - Maryse Fortin
- PERFORM Centre, Concordia University, Montreal, H4B 1R6 Canada
- Department of Health, Kinesiology & Applied Physiology, Concordia University, Montreal, H4B 1R6 Canada
- Centre de recherche interdisciplinaire en réadaptation (CRIR), Constance Lethbridge Rehabilitation Centre, Montreal, H4B 1T3 Canada
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100
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Stevens S, Agten A, Timmermans A, Vandenabeele F. Unilateral changes of the multifidus in persons with lumbar disc herniation: a systematic review and meta-analysis. Spine J 2020; 20:1573-1585. [PMID: 32325246 DOI: 10.1016/j.spinee.2020.04.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 04/06/2020] [Accepted: 04/10/2020] [Indexed: 02/03/2023]
Abstract
BACKGROUND Lumbar disc herniation (LDH) is one of the most often diagnosed degenerative pathologies within the lumbar spine. Paraspinal muscle involvement could be a possible mediator in the pathophysiology of disc herniation and influences the course of pain and disability after both surgical or nonsurgical treatment. To potentially improve treatment, it may be important to assess multifidus muscle morphology in patients diagnosed with a LDH. OBJECTIVE A systematic literature review and meta-analysis regarding the multifidus morphology in patients diagnosed with a LDH was conducted to assess the differences in multifidus muscle morphology between persons with LDH and healthy controls, and between the involved and the uninvolved side within subjects experiencing unilateral LDH. METHODS A systematic search was conducted of articles published up to and including November 2019 using the Pubmed, Web of Science, EMBASE, and MEDLINE Ovid search engines. The articles obtained from this search were screened based on title and abstract using the predetermined eligibility criteria. Included full text articles were assessed for their methodologic quality using the modified Downs and Black checklist. Heterogeneous data regarding multifidus muscle morphology was included in the descriptive analysis; data that was homogenous was included in the meta-analysis. RESULTS We identified 3,176 articles. Based on the screening for inclusion/exclusion criteria, 18 articles were included. Studies were either cross sectional or case-control studies assessing side-to-side differences or comparing patients diagnosed with a LDH to a healthy control group. Nine studies investigated whole muscle atrophy, six looked at muscle fat infiltration, seven studies assessed microscopic muscle properties including muscle fiber size, distribution, and muscle fibrosis. From the 18 articles, 10 were included in the meta-analysis. In the meta-analysis, a comparison was made between side-to-side differences for muscle fiber size, distribution, and whole muscle size. Descriptive analysis showed increased fat infiltration and atrophy (muscle and individual fiber) of the multifidus muscle when comparing side-to-side differences or comparing cases to controls. Meta-analysis showed a significant decrease in type I and II muscle fiber size (p=.002, .01, respectively) combined with a significant increase in the number of type I muscle fibers (p=.008) at the side of LDH. Regarding whole muscle size, no significant differences were found. CONCLUSIONS This study shows the presence of ipsilateral multifidus muscle changes in persons with unilateral LDH.
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Affiliation(s)
- Sjoerd Stevens
- Hasselt University, Rehabilitation Research Centre, Faculty of Rehabilitation Sciences, Agoralaan building A, 3590 Diepenbeek, Belgium.
| | - Anouk Agten
- Hasselt University, Rehabilitation Research Centre, Faculty of Rehabilitation Sciences, Agoralaan building A, 3590 Diepenbeek, Belgium
| | - Annick Timmermans
- Hasselt University, Rehabilitation Research Centre, Faculty of Rehabilitation Sciences, Agoralaan building A, 3590 Diepenbeek, Belgium
| | - Frank Vandenabeele
- Hasselt University, Rehabilitation Research Centre, Faculty of Rehabilitation Sciences, Agoralaan building A, 3590 Diepenbeek, Belgium
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