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Stueckle CA, Haage P. Specific back pain - effective diagnosis and treatment from the radiologist's point of view. ROFO-FORTSCHR RONTG 2024. [PMID: 39168132 DOI: 10.1055/a-2371-1752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2024]
Abstract
The diagnosis and treatment of specific back pain is important in radiology. Due to the high number of patients suffering from back pain, it is important to provide excellent diagnostic and therapeutic support.Based on a recent literature search and considering the relevant guidelines as well as expert opinions, the aspects of specific back pain important for radiologists in terms of pathogenesis, diagnosis, and treatment are presented.Clinical examination in combination with the medical history provides a valid suspected diagnosis. This should subsequently be verified radiologically. MRI is the most effective cross-sectional diagnostic method for investigating specific back pain. A conventional X-ray on two planes in a standing position can be a useful addition if postural causes are suspected. If the clinical symptoms match the morphological findings, radiological treatment can be carried out for nerve root involvement as well as for inflammatory changes of the facet joints. The improvement in symptoms after radiological therapy is considered good overall; at least a short-term improvement in symptoms can generally be achieved, but no reliable data is available regarding the long-term outcome. Using preparations containing triamcinolone, low dosages should be selected in accordance with the guidelines. Embedding in a multimodal pain therapy treatment concept should be considered.Radiology provides essential diagnostic findings regarding specific back pain. Interventional pain therapy is an effective and safe method of treating proven specific back pain. · First examine clinically, then confirm the suspected diagnosis radiologically.. · MRI is usually the method of choice.. · Interventional pain therapy should show success after a maximum of 2 interventions.. · The anti-inflammatory drug dose should be kept as low as possible.. · The individual course determines the number of interventions.. · Stueckle CA, Haage P. Specific back pain - effective diagnosis and treatment from the radiologist's point of view. Fortschr Röntgenstr 2024; DOI 10.1055/a-2371-1752.
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Affiliation(s)
| | - Patrick Haage
- Diagnostic and Interventional Radiology, HELIOS Universitatsklinikum Wuppertal, Wuppertal, Germany
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2
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Lu Y, Luan H, Peng C, Ma J, Li Z, Hu Y, Song X. Application of network pharmacology and dock of molecules on the exploration of the mechanism of frankincense-myrrh for lumbar intervertebral disc degeneration: A review. Medicine (Baltimore) 2024; 103:e38953. [PMID: 39029064 DOI: 10.1097/md.0000000000038953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/21/2024] Open
Abstract
To investigate the efficacy of Frankincense-Myrrh in lumbar Intervertebral degenerative diseases (LIDD). The active components of frankincense-myrrh was retrieved with a unique system pharmacology platform for Traditional Chinese Medicine Systems Pharmacology (TCMSP). The LIDD-related target genes were screened with DisGeNET and Genecards databases. Then, STRING & Cytoscape were used for analyzing the Protein-Protein Interaction network. DAVID was used for analyzing Gene Ontology (GO) & Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment. Finally, molecules of AutoDockVina and Pymol were used for docking the molecules for verifying active ingredients and key targets' binding force. The 105 LIDD-related targets identified in Ruxiang (RX)-Moyao (MY) involve 53 active ingredients. In addition, topological analysis was conducted for identifying the 12 key targets. According to the analysis results of GO & KEGG, RX-MY is significant for treating LIDD through participating in many pathways and biological processes, such as signaling pathways of inflammatory response reactive process, MAP kinase activity, TNF, and MAPK, etc. According to the dock results, the active components oxo-tirucalic, acid, isofouquierone, (7S, 8R, 9S, 10R, 13S, 14S,17Z)-17-ethylidene-7-hydroxy-10,13-dimethyl-1,2,6,7,8,9,11,12,14,15-decahydrocyclopenta [a] phenanthrene-3,16-dion in RX-MY binds actively. The basic pharmacological action and RX-MY-related mechanism in the treatment of LIDD was revealed in this study for the first time. It is predicted that the results may provide a treatment plan for RX-MY with replacement of NSAIDs and warrant investigation of new therapeutic alternatives for LIDD. However, these predictions should be validated by relevant pharmacological trials.
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Affiliation(s)
- Yun Lu
- Department of Spine Surgery, The Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, 830002, China
| | - Haopeng Luan
- Department of Spine Surgery, The Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, 830002, China
| | - Cong Peng
- Department of Spine Surgery, The Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, 830002, China
| | - Junjie Ma
- Department of Spine Surgery, The Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, 830002, China
| | - Zhe Li
- Department of Spine Surgery, The Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, 830002, China
| | - Yu Hu
- Department of Pharmacy, The Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Xinghua Song
- Department of Spine Surgery, The Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, 830002, China
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Szigethy L, Sigmundsson FG, Joelson A. Surgically treated degenerative disk disease in twins. 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 2024; 33:1381-1384. [PMID: 38416191 DOI: 10.1007/s00586-024-08161-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 10/08/2023] [Accepted: 01/24/2024] [Indexed: 02/29/2024]
Abstract
PURPOSE Previous studies have suggested that genetic factors are important in the development of degenerative disk disease (DDD). However, the concordance rates for the phenotypes requiring surgery are unknown. The purpose of this study was to determine the concordance rates for DDD requiring surgery by studying monozygotic (MZ) and dizygotic (DZ) twin pairs. METHODS Patients, aged between 18 and 85 years, operated for DDD between 1996 and 2022 were identified in the national Swedish spine register (Swespine) and matched with the Swedish twin registry (STR) to identify MZ and DZ twins. Pairwise and probandwise concordance rates were calculated. RESULTS We identified 11,207 patients, 53% women, operated for DDD. By matching the Swespine patients with the STR, we identified 121 twin pairs (37 MZ and 84 DZ) where one or both twins were surgically treated for DDD. The total twin incidence for operated DDD was 1.1%. For DDD requiring surgery, we found no concordant MZ pair and no concordant DZ pair where both twins were operated for DDD. When we evaluated pairs where at least one twin was operated for DDD, we found two concordant MZ pairs (the co-twins were operated for spinal stenosis) and two concordant DZ pairs (one co-twin operated for spinal stenosis and one (co-twin operated for disk herniation). CONCLUSIONS Our findings suggest that genetic factors are probably not a major etiologic component in most cases of DDD requiring surgery. The findings of this study can be used for counseling patients about the risk for requiring DDD surgery.
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Affiliation(s)
- Lilla Szigethy
- Department of Orthopedics, Orebro University Hospital, 70185, Orebro, Sweden
| | - Freyr Gauti Sigmundsson
- Department of Orthopedics, Orebro University Hospital, 70185, Orebro, Sweden
- School of Medical Sciences, Orebro University, 70182, Orebro, Sweden
| | - Anders Joelson
- Department of Orthopedics, Orebro University Hospital, 70185, Orebro, Sweden.
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Abudouaini H, Yang J, Lin K, Meng Y, Zhang H, Wang S. A possible correlation between facet orientation and development of degenerative cervical spinal stenosis. BMC Musculoskelet Disord 2024; 25:181. [PMID: 38413918 PMCID: PMC10900644 DOI: 10.1186/s12891-024-07279-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 02/13/2024] [Indexed: 02/29/2024] Open
Abstract
BACKGROUND Previous studies have demonstrated the relationship between sagittal facet orientation and cervical degenerative spondylolisthesis. However, the associations between facet orientation and cervical spinal stenosis (CSS) have rarely been studied. METHODS One hundred twenty patients with CSS (CSS group) and 120 healthy participants (control group) were consecutively enrolled. The cervical facet angles and anteroposterior diameter (A-P diameter) of spinal canal at each subaxial cervical levels were measured using axial magnetic resonance imaging. The intersection angle of the midsagittal line of the vertebra to the facet line represents the orientation of the facet joint. RESULTS The facet angles on the right side at C2- C3 and C3-C4 in CSS group and at C2- C3 in control group had significantly higher values than those of the other sides. Besides, the facet angles and A-P diameter of spinal canal in CSS group were significantly smaller than those in control group at all levels (p < 0.05). CONCLUSIONS Our study demonstrated that patients with CSS have smaller axial cervical facet joint angles compared to the healthy individuals. Further studies are needed to elicit the specific underlying mechanism between sagittalization of the cervical facet joints and the pathology of CSS.
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Affiliation(s)
- Haimiti Abudouaini
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Junsong Yang
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Kaiyuan Lin
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Yibing Meng
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Hong Zhang
- Department of Ultrasound Medical Center, Honghui Hospital, Xi'an Jiaotong University, Xi'an, China.
| | - Sibo Wang
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, China.
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De Silva L, Baysari M, Keep M, Kench P, Clarke J. Patients' requests for radiological imaging: A qualitative study on general practitioners' perspectives. Health Expect 2023; 26:2453-2460. [PMID: 37587771 PMCID: PMC10632629 DOI: 10.1111/hex.13849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/26/2023] [Accepted: 08/03/2023] [Indexed: 08/18/2023] Open
Abstract
BACKGROUND With the increasing availability of information, patients are becoming more informed about radiology procedures and requesting imaging studies. This qualitative study aims to explore factors that influence general practitioners' (GPs) decisions to fulfil patient requests for imaging studies during clinical consultation. METHODS Semi-structured interviews were conducted with 10 GPs working across five private medical centres in Northwest Sydney. Conventional content analysis was used with emergent themes to identify GPs perspectives. RESULTS Six themes stood out from the interviews with GPs fulfilling patient requests for imaging studies. They included four pertaining to patient factors: patient expectations, 'therapeutic scans', 'impressive labels' and entitled. Two further themes pertained to the GP perspective and included defensive medicine, and 'new patients'. Requests are fulfilled from anxious or health-obsessed patients, with GPs worrying about litigation if they refuse. However, GPs decline requests from patients with entitlement attitudes or during first visits. DISCUSSION The findings suggest that GPs struggle to balance their responsibilities as gatekeepers of imaging with patients' expectations of request fulfilment. Clear guidelines on the appropriate use of diagnostic imaging and its limitations could help patients understand its proper use and ease anxiety. Additionally, education and training for GPs could help them manage patient expectations and provide appropriate care. PATIENT CONTRIBUTIONS Patients, service users, caregivers, people with lived experiences or members of the public were not directly involved in the design, conduct, analysis or interpretation of the study. However, our study was conducted in primary care facilities where the GPs were interviewed about patients' requests for diagnostic imaging based on their own initiatives. GPs' perspectives in managing patient expectations and healthcare utilisation were explored within the Australian Medicare system, where medical imaging and image-guided procedures come at little to no cost to the individual. The study findings contribute to a better understanding of the challenges faced by GPs in dealing with patient consumerism and requests for diagnostic imaging, as well as factors influencing request fulfilment or denial. Insights gained from this study may inform future research about delivering patient-centred care within a similar context.
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Affiliation(s)
- Lizzie De Silva
- Discipline of Medical Imaging Science, Sydney School of Health Sciences, Faculty of Medicine and HealthThe University of SydneySydneyNew South WalesAustralia
| | - Melissa Baysari
- Biomedical Informatics and Digital Health, Charles Perkins Centre D17Faculty of Medicine and HealthSydneyNew South WalesAustralia
| | - Melanie Keep
- Sydney School of Health SciencesFaculty of Medicine and HealthCamperdownNew South WalesAustralia
| | - Peter Kench
- Discipline of Medical Imaging Science, Sydney School of Health Sciences, Faculty of Medicine and HealthThe University of SydneySydneyNew South WalesAustralia
| | - Jillian Clarke
- Discipline of Medical Imaging Science, Sydney School of Health Sciences, Faculty of Medicine and HealthThe University of SydneySydneyNew South WalesAustralia
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Chiu PF, Chang RCH, Lai YC, Wu KC, Wang KP, Chiu YP, Ji HR, Kao CH, Chiu CD. Machine Learning Assisting the Prediction of Clinical Outcomes following Nucleoplasty for Lumbar Degenerative Disc Disease. Diagnostics (Basel) 2023; 13:diagnostics13111863. [PMID: 37296715 DOI: 10.3390/diagnostics13111863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 05/23/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023] Open
Abstract
BACKGROUND Lumbar degenerative disc disease (LDDD) is a leading cause of chronic lower back pain; however, a lack of clear diagnostic criteria and solid LDDD interventional therapies have made predicting the benefits of therapeutic strategies challenging. Our goal is to develop machine learning (ML)-based radiomic models based on pre-treatment imaging for predicting the outcomes of lumbar nucleoplasty (LNP), which is one of the interventional therapies for LDDD. METHODS The input data included general patient characteristics, perioperative medical and surgical details, and pre-operative magnetic resonance imaging (MRI) results from 181 LDDD patients receiving lumbar nucleoplasty. Post-treatment pain improvements were categorized as clinically significant (defined as a ≥80% decrease in the visual analog scale) or non-significant. To develop the ML models, T2-weighted MRI images were subjected to radiomic feature extraction, which was combined with physiological clinical parameters. After data processing, we developed five ML models: support vector machine, light gradient boosting machine, extreme gradient boosting, extreme gradient boosting random forest, and improved random forest. Model performance was measured by evaluating indicators, such as the confusion matrix, accuracy, sensitivity, specificity, F1 score, and area under the receiver operating characteristic curve (AUC), which were acquired using an 8:2 allocation of training to testing sequences. RESULTS Among the five ML models, the improved random forest algorithm had the best performance, with an accuracy of 0.76, a sensitivity of 0.69, a specificity of 0.83, an F1 score of 0.73, and an AUC of 0.77. The most influential clinical features included in the ML models were pre-operative VAS and age. In contrast, the most influential radiomic features had the correlation coefficient and gray-scale co-occurrence matrix. CONCLUSIONS We developed an ML-based model for predicting pain improvement after LNP for patients with LDDD. We hope this tool will provide both doctors and patients with better information for therapeutic planning and decision-making.
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Affiliation(s)
- Po-Fan Chiu
- Spine Center, China Medical University Hospital, Taichung 404327, Taiwan
- Department of Neurosurgery, China Medical University Hospital, Taichung 404327, Taiwan
| | - Robert Chen-Hao Chang
- Department of Electrical Engineering, National Chung Hsing University, Taichung 40227, Taiwan
| | - Yung-Chi Lai
- Department of Nuclear Medicine and PET Center, China Medical University Hospital, Taichung 404327, Taiwan
| | - Kuo-Chen Wu
- Center of Artificial Intelligence, China Medical University Hospital, Taichung 404327, Taiwan
- Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei 10617, Taiwan
| | - Kuan-Pin Wang
- Center of Artificial Intelligence, China Medical University Hospital, Taichung 404327, Taiwan
- Department of Computer Science and Engineering, National Chung Hsing University, Taichung 40227, Taiwan
| | - You-Pen Chiu
- Spine Center, China Medical University Hospital, Taichung 404327, Taiwan
- School of Medicine, China Medical University, Taichung 404327, Taiwan
- Graduate Institute of Biomedical Science, China Medical University, Taichung 404327, Taiwan
| | - Hui-Ru Ji
- Spine Center, China Medical University Hospital, Taichung 404327, Taiwan
- School of Medicine, China Medical University, Taichung 404327, Taiwan
- Graduate Institute of Biomedical Science, China Medical University, Taichung 404327, Taiwan
| | - Chia-Hung Kao
- Department of Nuclear Medicine and PET Center, China Medical University Hospital, Taichung 404327, Taiwan
- Center of Artificial Intelligence, China Medical University Hospital, Taichung 404327, Taiwan
- Graduate Institute of Biomedical Science, China Medical University, Taichung 404327, Taiwan
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung 41354, Taiwan
| | - Cheng-Di Chiu
- Spine Center, China Medical University Hospital, Taichung 404327, Taiwan
- Department of Neurosurgery, China Medical University Hospital, Taichung 404327, Taiwan
- School of Medicine, China Medical University, Taichung 404327, Taiwan
- Graduate Institute of Biomedical Science, China Medical University, Taichung 404327, Taiwan
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei 11490, Taiwan
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Ünver S, Çolakoğlu Ü, Akıncı AT. Effects of Footbath on Postoperative Pain and Sleep Quality in Patients With Lumbar Degenerative Disc Disease: A Randomized Controlled Study. J Neurosci Nurs 2023; Publish Ahead of Print:01376517-990000000-00045. [PMID: 37224297 DOI: 10.1097/jnn.0000000000000709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
ABSTRACT BACKGROUND: Pain management and good sleep are essential for patients after surgical procedures. This study aimed to evaluate the effects of footbath on postoperative pain severity and sleep quality levels of patients who have undergone degenerative lumbar spine surgery. METHODS: Sixty patients were randomly assigned to the footbath intervention group or the control group. The intervention was a 20-minute footbath in 42°C water before patients fell asleep on the evening of the surgery day. On the morning of the surgery day and the morning of postoperative day, the patient's pain severity and sleep quality scores were obtained using the visual analog scale and the Visual Analog Sleep Scale. RESULTS: There was no significant difference between the pain severity scores of the study groups (P > .05). The sleep quality level of the intervention group was statistically significantly higher than that of the control group (P < .05). CONCLUSION: Consequently, a footbath is effective in increasing sleep quality levels of patients who have undergone degenerative lumbar spine surgery. It may be used as a simple and practical nonpharmacological nursing strategy for improving patients' sleep quality.
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Wang W, Huang W, Yu X, Wang L, Xu X. Lumbar disc rehydration after dynamic stabilization: A systematic review. Medicine (Baltimore) 2023; 102:e33163. [PMID: 37058035 PMCID: PMC10101259 DOI: 10.1097/md.0000000000033163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 02/13/2023] [Indexed: 04/15/2023] Open
Abstract
BACKGROUND Interbody fusion combined with posterior screw fixation is a traditional method used for treating lumbar degenerative disease (LDD). But in recent years, there have been more and more reports about its complications. Dynamic Stabilization Systems (DSS) are another method for the treatment of LDD, but the clinical results are still inconclusive. The objective of this study is to review, analyze, and discuss the probability of disc rehydration by DSS designed for LDD by systematically reviewing previous relevant studies. METHODS The Pubmed, Web of Science, and Embase databases were searched using keywords for articles published before June 2022. The following keywords were used: rehydration, rehydrated, lumbar, spine, disc, spinal, degenerative disc disease, degenerative spine disease, vertebrae, vertebral column, thoracolumbar, and lumbosacral. The included studies were printed in English. Two independent investigators compiled all data. For the quality assessment, the Newcastle-Ottawa Scale was used to evaluate case-control studies, while the Joanna Briggs Institute critical appraisal checklist was used to evaluate the case series studies. RESULTS This systematic review included 7 studies comprised of 5 case series and 2 case-control studies. Seven articles involving 199 cases were enrolled for the data extraction. Of the 199 cases, 55 cases observed rehydration, as evaluated by Pfrimann grading on magnetic resonance imaging. The rehydration rate was 27.6% (55/199). DSS can provide positive clinical outcomes. Both visual analog scale and Oswestry Dysfunctional Index scores were significantly improved at the final follow-up. CONCLUSION DSS may promote disc rehydration and delay the development of LDD to some extent. Mechanical stretch may play an important role in the progress of intervertebral disc rehydration. It provides important evidence for the clinical application of DSS.
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Affiliation(s)
- Wenqiao Wang
- Weifang Medical University, Weifang, Shandong, China
| | - Weimin Huang
- Department of Orthopaedics, The 960th Hospital of the People’s Liberation Army Joint Logistics Support Force, Jinan, Shandong, China
| | - Xiuchun Yu
- Department of Orthopaedics, The 960th Hospital of the People’s Liberation Army Joint Logistics Support Force, Jinan, Shandong, China
| | - Lei Wang
- Department of Orthopaedics, The 960th Hospital of the People’s Liberation Army Joint Logistics Support Force, Jinan, Shandong, China
| | - Xiaoduo Xu
- Department of Orthopaedics, The 960th Hospital of the People’s Liberation Army Joint Logistics Support Force, Jinan, Shandong, China
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Identification of the Hub Genes Involved in Stem Cell Treatment for Intervertebral Disc Degeneration: A Conjoint Analysis of Single-Cell and Machine Learning. Stem Cells Int 2023; 2023:7055264. [PMID: 36733465 PMCID: PMC9889147 DOI: 10.1155/2023/7055264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 10/08/2022] [Accepted: 10/17/2022] [Indexed: 01/25/2023] Open
Abstract
Intervertebral disc degeneration (IDD), which is distinguished by a variety of pathologic alterations, is the major cause of low back pain (LBP). Nonetheless, preventative measures or therapies that may delay IDD are scarcely available. In this study, we sought to identify new diagnostic biological markers for IDD. In this first-of-a-kind study combining machine learning, stem cell treatment samples and single-cell sequencing data were collected. Differentially expressed genes (DEGs) were detected from the treatment group and clusters. To filter potential markers, support vector machine analysis and LASSO were performed. LAPTM5 was found to be the hub gene for IDD. In addition, the results of single-cell sequencing demonstrated the critical function of stem cells in IDD. Finally, we found that aging is significantly associated with the rate of stem cells. In general, our results may offer fresh insights that may be used in the investigation of innovative markers for diagnosing IDD. The critical genes identified by the machine learning algorithm could provide new perspectives on IDD.
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The Influence of Intervertebral Disc Microenvironment on the Biological Behavior of Engrafted Mesenchymal Stem Cells. Stem Cells Int 2022; 2022:8671482. [DOI: 10.1155/2022/8671482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 10/19/2022] [Accepted: 10/25/2022] [Indexed: 11/09/2022] Open
Abstract
Intervertebral disc degeneration is the main cause of low back pain. Traditional treatment methods cannot repair degenerated intervertebral disc tissue. The emergence of stem cell therapy makes it possible to regenerate and repair degenerated intervertebral disc tissue. At present, mesenchymal stem cells are the most studied, and different types of mesenchymal stem cells have their own characteristics. However, due to the harsh and complex internal microenvironment of the intervertebral disc, it will affect the biological behaviors of the implanted mesenchymal stem cells, such as viability, proliferation, migration, and chondrogenic differentiation, thereby affecting the therapeutic effect. This review is aimed at summarizing the influence of each intervertebral disc microenvironmental factor on the biological behavior of mesenchymal stem cells, so as to provide new ideas for using tissue engineering technology to assist stem cells to overcome the influence of the microenvironment in the future.
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Evaniew N, Swamy G, Jacobs WB, Bouchard J, Cho R, Manson NA, Rampersaud YR, Paquet J, Bailey CS, Johnson M, Attabib N, Fisher CG, McIntosh G, Thomas KC. Lumbar Fusion Surgery for Patients With Back Pain and Degenerative Disc Disease: An Observational Study From the Canadian Spine Outcomes and Research Network. Global Spine J 2022; 12:1676-1686. [PMID: 33406897 PMCID: PMC9609527 DOI: 10.1177/2192568220985470] [Citation(s) in RCA: 2] [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] [Indexed: 11/25/2022] Open
Abstract
STUDY DESIGN Uncontrolled retrospective observational study. OBJECTIVES Surgery for patients with back pain and degenerative disc disease is controversial, and studies to date have yielded conflicting results. We evaluated the effects of lumbar fusion surgery for patients with this indication in the Canadian Spine Outcomes and Research Network (CSORN). METHODS We analyzed data that were prospectively collected from consecutive patients at 11 centers between 2015 and 2019. Our primary outcome was change in patient-reported back pain at 12 months of follow-up, and our secondary outcomes were satisfaction, disability, health-related quality of life, and rates of adverse events. RESULTS Among 84 patients, we observed a statistically significant improvement of back pain at 12 months that exceeded the threshold of Minimum Clinically Important Difference (MCID) (mean change -3.7 points, SD 2.6, p < 0.001, MCID = 1.2; 77% achieved MCID), and 81% reported being "somewhat" or "extremely" satisfied. We also observed improvements of Oswestry Disability Index (-17.3, SD 16.6), Short Form-12 Physical Component Summary (10.3, SD 9.6) and Short Form-12 Mental Component Summary (3.1, SD 8.3); all p < 0.001). The overall rate of adverse events was 19%. CONCLUSIONS Among a highly selective group of patients undergoing lumbar fusion surgery for degenerative disc disease, most experienced a clinically significant improvement of back pain as well as significant improvements of disability and health-related quality of life, with high satisfaction at 1 year of follow-up. These findings suggest that surgery for this indication may provide some benefit, and that further research is warranted.
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Affiliation(s)
- Nathan Evaniew
- University of Calgary Spine Program,
University of Calgary, Alberta, Canada,Nathan Evaniew, University of Calgary Spine
Program, Foothills Medical Centre, 12th Floor, 1403 29 Street NW, Calgary,
Alberta, Canada.
| | - Ganesh Swamy
- University of Calgary Spine Program,
University of Calgary, Alberta, Canada
| | - W. Bradley Jacobs
- University of Calgary Spine Program,
University of Calgary, Alberta, Canada
| | - Jacques Bouchard
- University of Calgary Spine Program,
University of Calgary, Alberta, Canada
| | - Roger Cho
- University of Calgary Spine Program,
University of Calgary, Alberta, Canada
| | - Neil A. Manson
- Canada East Spine Centre, Saint John,
New Brunswick, Canada
| | | | - Jerome Paquet
- Département de Chirurgie, Université
Laval, Quebec City, Quebec, Canada
| | | | - Michael Johnson
- Department of Surgery, University of
Manitoba, Winnipeg, Manitoba, Canada
| | | | - Charles G. Fisher
- Department of Orthopaedics, University
of British Columbia, Vancouver, British Columbia, Canada
| | - Greg McIntosh
- Canadian Spine Outcomes and Research
Network, Markdale, Ontario, Canada
| | - Kenneth C. Thomas
- University of Calgary Spine Program,
University of Calgary, Alberta, Canada
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12
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Back Pain. Neurol Clin 2022; 41:61-76. [DOI: 10.1016/j.ncl.2022.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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13
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Age- and sex-dependent differences in the morphology and composition of paraspinal muscles between subjects with and without lumbar degenerative diseases. BMC Musculoskelet Disord 2022; 23:734. [PMID: 35915426 PMCID: PMC9341069 DOI: 10.1186/s12891-022-05692-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 07/25/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The quality of the paraspinal muscles has been recommended as a surrogate marker for the evaluation of the severity of the lumbar degenerative diseases (LDD). The purpose of this study is to determine the age- and sex-dependent differences in the morphology and composition of the paraspinal muscles between LDD and asymptomatic subjects. METHODS We analyzed data from 370 patients and 327 asymptomatic volunteers aged between 18-85 years. The measurement of the cross-sectional area (CSA) of the erector spinae, multifidus, and psoas at the L4/5-disc level was performed by the magnetic resonance imaging (MRI). The fatty infiltration ratio (FI %) of the multifidus and erector spinae was calculated. RESULTS FI % of the lumbar paraspinal muscles were significantly and positively correlated with the severity of LDD instead of the CSA. Males had greater CSA than females, and females showed higher FI % than males in the paraspinal muscles. With the increase of age, the CSA of the lumbar paraspinal muscles gradually decreased, and the psoas showed the most significant decreasing trend. However, the FI % gradually increased in both LDD and asymptomatic groups with aging. CONCLUSION Age- and sex-dependent differences were found in the morphology and composition of the paraspinal muscles between subjects with and without LDD. Further long-term follow up investigations and basic studies will continue to confirm the natural history of the paraspinal muscles with aging and their association with LDD.
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Zhou Y, Wang B, Pei Z, Yang J, Jiang C, Tian X, Qu X, Li L. Facet tropism: Association between cervical disc degeneration and cervical spondylotic radiculopathy in middle-aged patients. J Clin Neurosci 2022; 99:89-93. [PMID: 35278934 DOI: 10.1016/j.jocn.2022.01.011] [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: 09/17/2021] [Revised: 12/25/2021] [Accepted: 01/13/2022] [Indexed: 12/19/2022]
Abstract
This study aimed to retrospectively explore the relationship between facet tropism (FT) and cervical disc degeneration in cervical spondylotic radiculopathy (CSR) patients on 3-dimensional views. A total of 180 middle-aged patients with single-level CSR at C4/5 who underwent cervical CT and MRI in our hospital were included. The incidence of FT (or called FT (+), defined as FT ≥ 7 degree) at C3/4, C4/5, C5/6 levels were measured and calculated by reconstructed CT images on 3-dimensional views. The grade of cervical disc degeneration at three levels was assessed by MRI images by the method of Miyazali. Univariate analysis was performed to compare their cervical disc degeneration grade and CSR incidence between two groups stratified by FT (+). Moreover, a logistic regression model was used to investigate the association between FT (+) and grade of cervical disc degeneration and incidence of CSR adjusting for age, gender, and BMI. Grade of cervical disc degeneration and incidence of CSR in axial FT (+) group were both significantly increased compared to axial FT (-) group, while sagittal and coronal FT (+) groups showed no difference. Axial FT (+) was significantly associated with the grade of cervical disc degeneration and incidence of CSR. in middle-aged patients with CSR, axial FT (+) might be the risk factor for cervical disc degeneration but not sagittal and coronal FT (+). Also, axial FT (+) was positively associated with CSR incidence. Therefore, axial FT might play a vital role in the progression of cervical disc degeneration and CSR occurrence.
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Affiliation(s)
- Yuanxing Zhou
- Department of Orthopaedics, First Affiliated Hospital of Dalian Medical University, Dalian, People's Republic of China; First Clinical Institute of Dalian Medical University, Dalian, People's Republic of China
| | - Bo Wang
- Department of Orthopaedics, First Affiliated Hospital of Dalian Medical University, Dalian, People's Republic of China; First Clinical Institute of Dalian Medical University, Dalian, People's Republic of China
| | - Zhongyu Pei
- Department of Orthopaedics, First Affiliated Hospital of Dalian Medical University, Dalian, People's Republic of China; First Clinical Institute of Dalian Medical University, Dalian, People's Republic of China
| | - Jun Yang
- Department of Orthopaedics, First Affiliated Hospital of Dalian Medical University, Dalian, People's Republic of China; First Clinical Institute of Dalian Medical University, Dalian, People's Republic of China
| | - Chang Jiang
- Department of Orthopaedics, First Affiliated Hospital of Dalian Medical University, Dalian, People's Republic of China; First Clinical Institute of Dalian Medical University, Dalian, People's Republic of China
| | - Xiliang Tian
- Department of Orthopaedics, First Affiliated Hospital of Dalian Medical University, Dalian, People's Republic of China; First Clinical Institute of Dalian Medical University, Dalian, People's Republic of China
| | - Xiaochen Qu
- Department of Orthopaedics, First Affiliated Hospital of Dalian Medical University, Dalian, People's Republic of China; First Clinical Institute of Dalian Medical University, Dalian, People's Republic of China
| | - Linan Li
- Department of Orthopaedics, First Affiliated Hospital of Dalian Medical University, Dalian, People's Republic of China; First Clinical Institute of Dalian Medical University, Dalian, People's Republic of China.
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Exogenous Parathyroid Hormone Alleviates Intervertebral Disc Degeneration through the Sonic Hedgehog Signalling Pathway Mediated by CREB. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:9955677. [PMID: 35265269 PMCID: PMC8898813 DOI: 10.1155/2022/9955677] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 01/31/2022] [Accepted: 02/01/2022] [Indexed: 12/19/2022]
Abstract
As an important hormone that regulates the balance of calcium and phosphorus, parathyroid hormone (PTH) has also been found to have an important function in intervertebral disc degeneration (IVDD). Our aim was to investigate the mechanism by which PTH alleviates IVDD. In this study, the PTH 1 receptor was found to be highly expressed in severely degenerated human nucleus pulposus (NP) cells. We found in the mouse model of IVDD that supplementation with exogenous PTH alleviated the narrowing of the intervertebral space and the degradation of the extracellular matrix (ECM) caused by tail suspension (TS). In addition, inflammation, oxidative stress, and apoptosis levels were significantly increased in the intervertebral disc tissues of TS-induced mice, and the activity of NP cells was decreased. TS also led to the downregulation of Sonic hedgehog (SHH) signalling pathway-related signal molecules in NP cells such as SHH, Smoothened, and GLI1. However, supplementation with exogenous PTH can reverse these changes. In vitro, PTH also promotes the activity of NP cells and the secretion of ECM. However, the antagonist of the SHH signalling pathway can inhibit the therapeutic effect of PTH on NP cells. In addition, a cAMP-response element-binding protein, as an important transcription factor, was found to mediate the promotion of PTH on the SHH signalling pathway. Our results revealed that PTH can alleviate IVDD by inhibiting inflammation, oxidative stress, and apoptosis and improving the activity of NP cells via activating the SHH signalling pathway.
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Application of stem cells in the repair of intervertebral disc degeneration. Stem Cell Res Ther 2022; 13:70. [PMID: 35148808 PMCID: PMC8832693 DOI: 10.1186/s13287-022-02745-y] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Accepted: 01/25/2022] [Indexed: 12/16/2022] Open
Abstract
Intervertebral disc degeneration (IDD) is a common disease that increases with age, and its occurrence is stressful both psychologically and financially. Stem cell therapy for IDD is emerging. For this therapy, stem cells from different sources have been proven in vitro, in vivo, and in clinical trials to relieve pain and symptoms, reverse the degeneration cascade, delay the aging process, maintain the spine shape, and retain mechanical function. However, further research is needed to explain how stem cells play these roles and what effects they produce in IDD treatment. This review aims to summarize and objectively analyse the current evidence on stem cell therapy for IDD.
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Palmisciano P, Balasubramanian K, Scalia G, Sagoo NS, Haider AS, Bin Alamer O, Chavda V, Chaurasia B, Deora H, Passanisi M, Da Ros V, Giammalva GR, Maugeri R, Iacopino DG, Cicero S, Aoun SG, Umana GE. Posterior epidural intervertebral disc migration and sequestration: A systematic review. J Clin Neurosci 2022; 98:115-126. [PMID: 35152147 DOI: 10.1016/j.jocn.2022.01.039] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 01/25/2022] [Accepted: 01/31/2022] [Indexed: 10/19/2022]
Abstract
Posterior epidural intervertebral disc migration and sequestration (PEIMS) is a rare and debilitating complication of degenerative disc disease. Radiological differential diagnosis is often challenging, complicating the accurate planning of appropriate treatment strategies. We systematically reviewed the literature on PEIMS, focusing on clinical-radiological features and available treatments. PubMed, Scopus, Web of Science, and Cochrane were searched to include studies reporting clinical data of patients with PEIMS. Clinical characteristics, treatment strategies, and functional outcomes were analyzed. We included 82 studies comprising 157 patients. Median age was 54 years (range, 19-91). PEIMSs occurred spontaneously (49.7%) or acutely in patients with underlying progressive degenerative disc disease (50.3%). The most common symptoms were lower-back pain (77.1%) and radiculopathy (66.2%), mainly involving the L5 nerve root (43.8%). PEIMSs were mostly detected at MRI (93%) and/or CT (7%), frequently located in the lumbar spine (81.5%). Median maximum PEIMS diameter was 2.4 cm (range, 1.2-5.0). Surgical debulking was completed in 150 patients (95.5%), sometimes coupled with decompressive laminectomy (65%) or hemilaminectomy (19.1%). Median follow-up time was 3 months (range, 0.5-36.0). Post-treatment symptomatic improvement was reported in 153 patients (97.5%), with total recovery in 118 (75.2%). All 7 patients (4.5%) who received conservative non-surgical management had total clinical recovery at ≤ 3 months follow-ups. PEIMS is a challenging entity that may severely quality-of-life in patients with degenerative disc disease. Surgical removal represents the gold standard to improve patient's functional status. Spine fusion and conservative strategies proved to be effective in some cases.
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Affiliation(s)
- Paolo Palmisciano
- Department of Neurosurgery, Trauma Center, Gamma Knife Center, Cannizzaro Hospital, Catania, Italy
| | | | - Gianluca Scalia
- Department of Neurosurgery, Highly Specialized Hospital and of National Importance "Garibaldi", Catania, Italy
| | - Navraj S Sagoo
- Department of Orthopaedic Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Ali S Haider
- Texas A&M University College of Medicine, Houston, TX, USA
| | - Othman Bin Alamer
- King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Vishal Chavda
- Division of Anaesthesia, Sardar Women's Hospital, Ahmedabad, Gujarat, India
| | - Bipin Chaurasia
- Department of Neurosurgery, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh
| | - Harsh Deora
- Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bangalore, Karnataka, India
| | - Maurizio Passanisi
- Department of Neurosurgery, Trauma Center, Gamma Knife Center, Cannizzaro Hospital, Catania, Italy
| | - Valerio Da Ros
- Department of Biomedicine and Prevention, University Hospital of Rome "Tor Vergata", Rome, Italy
| | - Giuseppe R Giammalva
- Unit of Neurosurgery, Department of Biomedical Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Rosario Maugeri
- Unit of Neurosurgery, Department of Biomedical Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Domenico G Iacopino
- Unit of Neurosurgery, Department of Biomedical Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Salvatore Cicero
- Department of Neurosurgery, Trauma Center, Gamma Knife Center, Cannizzaro Hospital, Catania, Italy
| | - Salah G Aoun
- Department of Neurological Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Giuseppe E Umana
- Department of Neurosurgery, Trauma Center, Gamma Knife Center, Cannizzaro Hospital, Catania, Italy.
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Wang XW, Sun YJ, Chen X, Zhang WZ. Interleukin-4-induced FABP4 promotes lipogenesis in human skeletal muscle cells by activating the PPAR γ signaling pathway. Cell Biochem Biophys 2022; 80:355-366. [PMID: 35122221 DOI: 10.1007/s12013-022-01063-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 01/26/2022] [Indexed: 11/03/2022]
Abstract
Chronic low back pain (CLBP) is a common symptom of lumbar degenerative disease. Degeneration of the lumbar paravertebral muscles causes a loss of muscle mass and strength, which is a vital factor causing CLBP and often accompanied by lipid infiltration. Tandem mass spectrometry (TMT) was used to identify differentially expressed proteins in lipid-infiltrated and normal muscles. The results show that fatty acid binding protein 4 (FABP4) participated in the peroxisome proliferator-activated receptor-γ (PPAR γ) signaling pathway as an up-regulated protein, which is related to lipogenesis in diverse cells. In addition, chronic inflammation is believed to be involved in lumbar muscle degeneration and lipogenesis, with interleukin-4 (IL-4) considered as the predominant contributor. In present study, we investigate the effect of FABP4 on lipogenesis in human skeletal muscle cells (HSMCs) stimulated by Interleukin-4 (IL-4) and explore the mechanistic basis. We found expression level of FABP4 in lipid-infiltrated muscles was significantly higher than that in normal muscles. Lipogenesis in HSMCs could be increased by IL-4 treatment, as well as by FABP4 overexpression. FABP4 inhibition suppressed IL-4-mediated lipogenesis in HSMCs, whereas the PPAR γ inhibitor alleviated lipogenesis in both IL-4-treated and FABP4-overexpressed HSMCs. Collectively, the results indicate that FABP4 induces lipogenesis in HSMCs stimulated with IL-4 via activating the PPAR γ signaling pathway. Our study offers a detailed perspective on the pathogenesis of muscle lipid infiltration and provides a potential target for the clinical treatment strategy of muscle lipid infiltration and CLBP.
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Affiliation(s)
- Xin-Wen Wang
- Spine Center, Department of Orthopedics, Provincial Hospital Affiliated to Anhui Medical University, Hefei, 230001, China
| | - Yong-Jin Sun
- Spine Center, Department of Orthopedics, Provincial Hospital Affiliated to Anhui Medical University, Hefei, 230001, China
| | - Xiao Chen
- Spine Center, Department of Orthopedics, Provincial Hospital Affiliated to Anhui Medical University, Hefei, 230001, China
| | - Wen-Zhi Zhang
- Spine Center, Department of Orthopedics, Provincial Hospital Affiliated to Anhui Medical University, Hefei, 230001, China.
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Song M, Zhang Y, Sun Y, Kong M, Han S, Wang C, Wang Y, Xu D, Tu Q, Zhu K, Sun C, Li G, Zhao H, Ma X. Inhibition of RhoA/MRTF-A signaling alleviates nucleus pulposus fibrosis induced by mechanical stress overload. Connect Tissue Res 2022; 63:53-68. [PMID: 34420462 DOI: 10.1080/03008207.2021.1952193] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
PURPOSE/AIM : Intervertebral disc degeneration (IDD) is the leading cause of lower back pain, and clinically useful drugs for IDD are unavailable. Mechanical stress overload-induced fibrosis plays a critical role in IDD. RhoA/MRTF-A signaling is known to regulate tissue fibrosis; however, the effect of RhoA/MRTF-A on the development of IDD is unclear. MATERIALS AND METHODS : The expression of aggrecan, collagen I, collagen II, MMP-12, CTGF, and MRTF-A in nucleus pulposus (NP) samples from IDD patients and controls was detected by immunohistochemical staining. Primary nucleus pulposus cells (NPCs) were isolated and cultured to establish an overload strain model treated with or without CCG-1423. The protein levels of RhoA, ROCK2, MRTF-A, CTGF, and MMP-12 as well as fibrosis-associated proteins were detected by western blotting and immunofluorescence. RESULTS : Collagen I, MMP-12, and CTGF were significantly upregulated, and aggrecan and collagen II were significantly downregulated in the IDD samples. The cellular localization of MRTF-A was associated with intervertebral disc (IVD) degeneration. Overloaded strain enhanced the nuclear translocation of MRTF-A and changed the NPC morphology from spindle-shaped to long strips. Additional experiments showed that RhoA, ROCK2, MRTF-A, SRF, MMP-12, and CTGF were upregulated; however, aggrecan and collagen II were downregulated in NPCs under overload strain. CCG-1423, a RhoA/MRTF-A pathway inhibitor, reversed strain-induced fibrosis. CONCLUSION : Mechanical stress activates RhoA/MRTF-A signaling to promote extracellular matrix (ECM) degeneration in the NP, which is associated with the development of IDD. Our findings suggest that the RhoA/MRTF-A inhibitor CCG-1423 can alleviate NPC degeneration caused by overload stress and has potential as a therapeutic agent for IDD.
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Affiliation(s)
- Mengxiong Song
- Department of Orthopaedic Surgery, Minhang Hospital, Fudan University, Shanghai, China
| | - Yiran Zhang
- Shandong Institute of Orthopaedics and Traumatology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yi Sun
- Department of Orthopaedics, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Meng Kong
- Department of Orthopaedics, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Shuo Han
- Department of Orthopaedics, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Chao Wang
- Department of Orthopaedics, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yan Wang
- Department of Orthopaedics, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Derong Xu
- Department of Orthopaedics, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Qihao Tu
- Department of Orthopaedics, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Kai Zhu
- Department of Orthopaedics, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Chong Sun
- Department of Orthopaedics, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Guanghui Li
- Department of Orthopaedics, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Han Zhao
- Department of Pathology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xuexiao Ma
- Department of Orthopaedics, Affiliated Hospital of Qingdao University, Qingdao, China
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Toop N, Grossbach A, Gibbs D, Akhter A, Keister A, Maggio D, Oosten J, Deistler K, Gilkey T, Farhadi HF, Viljoen S. Static cage morphology in short-segment transforaminal lumbar interbody fusions is associated with alterations in foraminal height but not clinical outcomes. World Neurosurg 2021; 159:e389-e398. [PMID: 34954441 DOI: 10.1016/j.wneu.2021.12.066] [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: 08/23/2021] [Revised: 12/16/2021] [Accepted: 12/16/2021] [Indexed: 10/19/2022]
Abstract
INTRODUCTION Steerable "banana" cages have been posited to increase segmental lordosis in short-segment transforaminal lumbar interbody fusions (TLIF). The same is not necessarily true for straight "bullet" cages. While increased lordosis is generally thought to be advantageous, a potential complication is decreased foraminal height. Here we evaluate for any association between cage type and change in foraminal height and clinical outcomes following short-segment TLIFs. METHODS We retrospectively reviewed consecutive one- and two-level TLIFs with bilateral facetectomies with minimum one-year clinical and radiographic follow-up. Two cohorts were based on cage morphology: steerable "banana" cage or straight "bullet" cage. Patient reported outcome measures (PROMs), radiographic measurements, and revision rates were compared. RESULTS 46 patients with 53 straight and 95 patients with 131 steerable cage levels were included. Steerable cages showed increased segmental lordosis (9.1 vs 13.5°, p<0.001) and decreased foraminal height (20.3 vs 18.5 mm, p<0.001) after surgery. Straight cages demonstrated similar segmental lordosis (8.7 vs 8.1°, p=0.30) and foraminal height (19.4 vs 20.0 mm, p=0.065). Both cohorts showed improved PROMs at last follow-up (p≤0.005). Sub-analysis comparing patients that had increased or decreased foraminal height revealed similarly improved PROMs between cohorts. Revision rates at one-year were similar between cohorts (4.3% for straight and 3.2% for steerable group, p=0.72). CONCLUSION Although the increased segmental lordosis afforded by placement of steerable cages may decrease foraminal height after short segment TLIF, clinical outcomes are not negatively affected by this association.
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Affiliation(s)
- Nathaniel Toop
- Department of Neurological Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Andrew Grossbach
- Department of Neurological Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - David Gibbs
- The Ohio State University College of Medicine, Columbus, Ohio, United States
| | - Asad Akhter
- Department of Neurological Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Alexander Keister
- Department of Neurological Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Dominic Maggio
- Department of Neurological Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - James Oosten
- The Ohio State University College of Medicine, Columbus, Ohio, United States
| | - Kyle Deistler
- The Ohio State University College of Medicine, Columbus, Ohio, United States
| | - Ty Gilkey
- The Ohio State University College of Medicine, Columbus, Ohio, United States
| | - H Francis Farhadi
- Department of Neurological Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, United States.
| | - Stephanus Viljoen
- Department of Neurological Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, United States
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Toop N, Viljoen S, Baum J, Hatef J, Maggio D, Oosten J, Deistler K, Gilkey T, Close L, Farhadi HF, Grossbach AJ. Radiographic and clinical outcomes in one- and two-level transforaminal lumbar interbody fusions: a comparison of bullet versus banana cages. J Neurosurg Spine 2021:1-10. [PMID: 34920428 DOI: 10.3171/2021.8.spine21687] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 08/31/2021] [Indexed: 11/06/2022]
Abstract
OBJECTIVE The aim of this study was to determine whether cage morphology influences clinical and radiographic outcomes following short-segment transforaminal lumbar interbody fusion (TLIF) procedures. METHODS The authors retrospectively reviewed one- and two-level TLIFs at a single tertiary care center between August 2012 and November 2019 with a minimum 1-year radiographic and clinical follow-up. Two cohorts were compared based on interbody cage morphology: steerable "banana" cage or straight "bullet" cage. Patient-reported outcome measures (PROMs), radiographs, and complications were analyzed. RESULTS A total of 135 patients with 177 interbody levels were identified; 45 patients had 52 straight cages and 90 patients had 125 steerable cages. Segmental lordosis increased with steerable cages, while it decreased with straight cages (+3.8 ± 4.6 vs -1.9 ± 4.3, p < 0.001). Conversely, the mean segmental lordosis of adjacent lumbar levels decreased in the former group, while it increased in the latter group (-0.52 ± 1.9 vs +0.52 ± 2.1, p = 0.004). This reciprocal relationship results in global sagittal parameters, including pelvic incidence minus lumbar lordosis and lumbar distribution index, which did not change after surgery with either cage morphology. Multivariate analysis confirmed that steerable cage morphology, anterior cage positioning, and less preoperative index-level segmental lordosis were associated with greater improvement in index-level segmental lordosis. PROMs were improved after surgery with both cage types, and the degree of improvement did not differ between cohorts (p > 0.05). Perioperative and radiographic complications were similar between cohorts (p > 0.05). Overall reoperation rates, as well as reoperation rates for adjacent-segment disease within 2 years of surgery, were not significantly different between cohorts. CONCLUSIONS Steerable cages are more likely to lie within the anterior disc space, thus increasing index-level segmental lordosis, which is accompanied by a reciprocal change in segmental alignment at the adjacent lumbar levels. The converse relationship occurs for straight cages, with a kyphotic change at the index levels and reciprocal lordosis occurring at adjacent levels.
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Affiliation(s)
- Nathaniel Toop
- 1Department of Neurosurgery, The Ohio State University School of Medicine, Columbus; and
| | - Stephanus Viljoen
- 1Department of Neurosurgery, The Ohio State University School of Medicine, Columbus; and
| | - Justin Baum
- 1Department of Neurosurgery, The Ohio State University School of Medicine, Columbus; and
| | - Jeffrey Hatef
- 1Department of Neurosurgery, The Ohio State University School of Medicine, Columbus; and
| | - Dominic Maggio
- 1Department of Neurosurgery, The Ohio State University School of Medicine, Columbus; and
| | - James Oosten
- 2The Ohio State University School of Medicine, Columbus, Ohio
| | - Kyle Deistler
- 2The Ohio State University School of Medicine, Columbus, Ohio
| | - Ty Gilkey
- 2The Ohio State University School of Medicine, Columbus, Ohio
| | - Liesl Close
- 1Department of Neurosurgery, The Ohio State University School of Medicine, Columbus; and
| | - H Francis Farhadi
- 1Department of Neurosurgery, The Ohio State University School of Medicine, Columbus; and
| | - Andrew J Grossbach
- 1Department of Neurosurgery, The Ohio State University School of Medicine, Columbus; and
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22
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Dugailly PM, Dethier C, Salem W. Immediate alteration of the lumbar intervertebral foramen during the so-called osteopathic locking technique: A preliminary analysis on healthy subjects. INT J OSTEOPATH MED 2021. [DOI: 10.1016/j.ijosm.2021.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Gradin APT, Rossoni KM, Bonato L, Zanon IDB, Batista Junior JL, Jacob Junior C, Cardoso IM. CURRENT RESULTS OF CONVENTIONAL LUMBAR ARTHRODESIS. COLUNA/COLUMNA 2021. [DOI: 10.1590/s1808-185120212004250509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
ABSTRACT Objective: To evaluate the peri- and postoperative results and clinical repercussions in patients undergoing decompression surgery and single-level lumbar arthrodesis using the traditional technique (OTLIF) and to compare with the results of minimally invasive techniques (MITLIF) described in the literature. Methods: Our sample consisted of 22 patients who underwent TLIF surgery using the open technique (OTLIF) in the period October 2019 to January 2021, in our hospital. We compared the patients’ functional clinical results using the Oswestry scale in the preoperative period and 15 days after surgery, analyzed variables related to the perioperative period: surgery time, length of hospital stay, blood loss, use of a suction drain, and admission to the ICU, and compared these with the results reported in the literature for patients treated by the MITLIF technique. Results: The average age was 48.95 years and the most operated level was L4-L5 (55%). The average surgery time was 112.63 min. We did not use a suction drain in the postoperative period, there was no need for a blood transfusion in any patient, and no patient was admitted to the ICU. The average hospital stay was 1 day. Regarding the Oswestry Disability Index, the mean preoperative score was 44.73 and after 15 days, it was 24.05. Conclusions: surgical treatment using the OTLIF technique for single-level lumbar degenerative disease showed largely positive results, with improvement in disability scores, short hospital stay and low incidence of complications. When properly indicated, OTLIF is an excellent and safe option for the treatment of degenerative lumbar disease. Level of evidence IV; Case series study.
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Affiliation(s)
| | | | - Laísa Bonato
- Hospital Santa Casa de Misericórdia de Vitória, Brazil
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Franco D, Largoza G, Montenegro TS, Gonzalez GA, Hines K, Harrop J. Lumbar Total Disc Replacement: Current Usage. Neurosurg Clin N Am 2021; 32:511-519. [PMID: 34538477 DOI: 10.1016/j.nec.2021.05.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Low back pain is the leading cause of disability worldwide in industrialized nations. The pathology underlying chronic low back pain is associated with numerous factors. Lumbar degenerative disc disease is a potential major source of low back pain. There are numerous treatment modalities and options. Nonsurgical treatment options exist in the form of pain management through a combination of anti-inflammatory medications and steroid injections, physical therapy and lifestyle modifications. This article reviews the history and current trends in use for lumbar toral disc arthroplasty for degenerative disc disease treatment. Furthermore, indications, contraindications, and complications management are discussed.
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Affiliation(s)
- Daniel Franco
- Department of Neurological Surgery, Thomas Jefferson University Hospitals, 909 Walnut Street, Room 320L, Philadelphia, PA 19107, USA.
| | - Garrett Largoza
- Department of Neurological Surgery, Thomas Jefferson University Hospitals, 909 Walnut Street, Room 320L, Philadelphia, PA 19107, USA
| | - Thiago S Montenegro
- Department of Neurological Surgery, Thomas Jefferson University Hospitals, 909 Walnut Street, Room 320L, Philadelphia, PA 19107, USA
| | - Glenn A Gonzalez
- Department of Neurological Surgery, Thomas Jefferson University Hospitals, 909 Walnut Street, Room 320L, Philadelphia, PA 19107, USA
| | - Kevin Hines
- Department of Neurological Surgery, Thomas Jefferson University Hospitals, 909 Walnut Street, Room 320L, Philadelphia, PA 19107, USA
| | - James Harrop
- Department of Neurological Surgery, Thomas Jefferson University Hospitals, 909 Walnut Street, Room 320L, Philadelphia, PA 19107, USA
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Ansari D, DesLaurier JT, Patel S, Chapman JR, Oskouian RJ. Predictors of Extended Hospitalization and Early Reoperation After Elective Lumbar Disc Arthroplasty. World Neurosurg 2021; 154:e797-e805. [PMID: 34389528 DOI: 10.1016/j.wneu.2021.08.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 08/02/2021] [Accepted: 08/03/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Lumbar disc arthroplasty (LDA) has emerged as a motion-sparing alternative to lumbar fusion. Although LDA may be amenable to the ambulatory surgical setting, to date no study has identified the factors predisposing patients to extended hospital stay. METHODS A national surgical quality improvement database was queried from 2011 to 2019 for patients undergoing elective, single-level, primary LDA. Univariate and multivariate logistic regression analyses were performed to elucidate predictors of length of stay (LOS) at or above the 90th percentile of the study population (3 days). Secondary study endpoints included rates of complications, as well as predictors and reasons for unplanned reoperation within 30 days. RESULTS A total of 630 patients met eligibility criteria for the study, of whom 517 (82.1%) had LOS <3 days and 113 (17.9%) had LOS ≥3 days. Multivariate logistic regression revealed associations between prolonged hospitalization and postoperative diagnosis of degenerative disk disease, obesity, Hispanic identity, and operation length >120 minutes. Before discharge, patients with LOS ≥3 days were more likely to have venous thromboembolisms, pneumonia, surgical site infections, and reoperations. Independent predictors of reoperation were wound infections, diabetes, and smoking. CONCLUSIONS Complications following elective single-level LDA are relatively rare, with few extended hospitalizations being attributable to any specific complication. Risk factors for prolonged LOS appear to be related to diagnosis and surgical time rather than to modifiable preoperative comorbidities. Conversely, unplanned reoperations within 30 days are associated with optimizable perioperative factors such as smoking, diabetes, and surgical site infection.
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Affiliation(s)
- Darius Ansari
- Swedish Neuroscience Institute, Swedish Medical Center, Seattle, Washington, USA; Clinical Research Division, Seattle Science Foundation, Seattle, Washington, USA
| | - Justin T DesLaurier
- Swedish Neuroscience Institute, Swedish Medical Center, Seattle, Washington, USA; Clinical Research Division, Seattle Science Foundation, Seattle, Washington, USA
| | - Saavan Patel
- Swedish Neuroscience Institute, Swedish Medical Center, Seattle, Washington, USA; Clinical Research Division, Seattle Science Foundation, Seattle, Washington, USA
| | - Jens R Chapman
- Swedish Neuroscience Institute, Swedish Medical Center, Seattle, Washington, USA; Clinical Research Division, Seattle Science Foundation, Seattle, Washington, USA
| | - Rod J Oskouian
- Swedish Neuroscience Institute, Swedish Medical Center, Seattle, Washington, USA; Clinical Research Division, Seattle Science Foundation, Seattle, Washington, USA.
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Knezevic NN, Candido KD, Vlaeyen JWS, Van Zundert J, Cohen SP. Low back pain. Lancet 2021; 398:78-92. [PMID: 34115979 DOI: 10.1016/s0140-6736(21)00733-9] [Citation(s) in RCA: 427] [Impact Index Per Article: 142.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 12/23/2020] [Accepted: 02/16/2021] [Indexed: 12/31/2022]
Abstract
Low back pain covers a spectrum of different types of pain (eg, nociceptive, neuropathic and nociplastic, or non-specific) that frequently overlap. The elements comprising the lumbar spine (eg, soft tissue, vertebrae, zygapophyseal and sacroiliac joints, intervertebral discs, and neurovascular structures) are prone to different stressors, and each of these, alone or in combination, can contribute to low back pain. Due to numerous factors related to low back pain, and the low specificity of imaging and diagnostic injections, diagnostic methods for this condition continue to be a subject of controversy. The biopsychosocial model posits low back pain to be a dynamic interaction between social, psychological, and biological factors that can both predispose to and result from injury, and should be considered when devising interdisciplinary treatment plans. Prevention of low back pain is recognised as a pivotal challenge in high-risk populations to help tackle high health-care costs related to therapy and rehabilitation. To a large extent, therapy depends on pain classification, and usually starts with self-care and pharmacotherapy in combination with non-pharmacological methods, such as physical therapies and psychological treatments in appropriate patients. For refractory low back pain, a wide range of non-surgical (eg, epidural steroid injections and spinal cord stimulation for neuropathic pain, and radiofrequency ablation and intra-articular steroid injections for mechanical pain) and surgical (eg, decompression for neuropathic pain, disc replacement, and fusion for mechanical causes) treatment options are available in carefully selected patients. Most treatment options address only single, solitary causes and given the complex nature of low back pain, a multimodal interdisciplinary approach is necessary. Although globally recognised as an important health and socioeconomic challenge with an expected increase in prevalence, low back pain continues to have tremendous potential for improvement in both diagnostic and therapeutic aspects. Future research on low back pain should focus on improving the accuracy and objectivity of diagnostic assessments, and devising treatment algorithms that consider unique biological, psychological, and social factors. High-quality comparative-effectiveness and randomised controlled trials with longer follow-up periods that aim to establish the efficacy and cost-effectiveness of low back pain management are warranted.
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Affiliation(s)
- Nebojsa Nick Knezevic
- Department of Anesthesiology, Advocate Illinois Masonic Medical Center, Chicago, IL, USA; Department of Anesthesiology, University of Illinois, Chicago, IL, USA; Department of Surgery, University of Illinois, Chicago, IL, USA.
| | - Kenneth D Candido
- Department of Anesthesiology, Advocate Illinois Masonic Medical Center, Chicago, IL, USA; Department of Anesthesiology, University of Illinois, Chicago, IL, USA; Department of Surgery, University of Illinois, Chicago, IL, USA
| | - Johan W S Vlaeyen
- Research Group Health Psychology, University of Leuven, Leuven, Belgium; Research Group Experimental Health Psychology, Maastricht University, Maastricht, Netherlands; TRACE Center for Translational Health Research, KU, Leuven-Ziekenhuis Oost-Limburg, Genk, Belgium
| | - Jan Van Zundert
- Department of Anesthesiology, Critical Care and Multidisciplinary Pain Center, Ziekenhuis Oost-Limburg, Genk, Belgium; Department of Anesthesiology and Pain Medicine, Maastricht University Medical Center, Maastricht, Netherlands
| | - Steven P Cohen
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins Medical Institutions, Baltimore, MD, USA; Neurology, Physical Medicine and Rehabilitation, Johns Hopkins Medical Institutions, Baltimore, MD, USA; Psychiatry and Behavioral Sciences, Johns Hopkins Medical Institutions, Baltimore, MD, USA; Department of Physical Medicine and Rehabilitation and Anesthesiology, Walter Reed National Military Medical Center, Bethesda, MD, USA
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Lumbar Puncture Increases Risk of Lumbar Degenerative Disc Disease: Analysis From the Rochester Epidemiology Project. Spine (Phila Pa 1976) 2020; 45:E1326-E1332. [PMID: 32694488 PMCID: PMC9301653 DOI: 10.1097/brs.0000000000003595] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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28
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Ahmed S, Hirayama Y, Khan D, Mowforth O, Kotter MR, Davies B. Letter to the Editor: The Need for Standardization of Terminology in Spinal Research. Spine (Phila Pa 1976) 2020; 45:E1286-E1287. [PMID: 32925823 DOI: 10.1097/brs.0000000000003634] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Shahzaib Ahmed
- Division of Neurosurgery, Department of Clinical Neurosciences, Addenbrooke's Hospital, University of Cambridge, Cambridge, United Kingdom
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29
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Schröder C, Nienhaus A. Intervertebral Disc Disease of the Lumbar Spine in Health Personnel with Occupational Exposure to Patient Handling-A Systematic Literature Review and Meta-Analysis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E4832. [PMID: 32635557 PMCID: PMC7370072 DOI: 10.3390/ijerph17134832] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 06/27/2020] [Accepted: 06/30/2020] [Indexed: 01/08/2023]
Abstract
Lifting or carrying loads or working while the trunk is in a bent position are well established risk factors for the development of disc disease of the lumbar spine (LDD). Patient handling is associated with certain hazardous activities, which can result in exposure to heavy loads and high pressure for the discs of the lumbar spine of the nurses performing these tasks. The purpose of this review was to examine the occurrence of work-related LDD among health personnel (HP) with occupational exposure to patient handling activities in comparison to un-exposed workers. A systematic literature search was conducted using the following databases: PubMed, CINAHL, Scopus, and Web of Science. A meta-analysis of odds ratios (OR) was conducted by stratifying for various factors. Five studies reported a higher prevalence for LDD among nurses and geriatric nurses (11.3-96.3%) compared to all controls (3.78-76.47%). Results of the meta-analysis showed a significantly increased OR for LDD among HP compared to all controls (OR 2.45; 95% confidence interval (CI) 1.41, 4.26). In particular, the results of this review suggest that nurses have a higher probability of developing disc herniation than office workers.
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Affiliation(s)
- Christofer Schröder
- Department of Occupational Medicine, Public health and Hazardous Substances, Institution for Statutory Accident Insurance and Prevention in the Health and Welfare Services, 22089 Hamburg, Germany;
| | - Albert Nienhaus
- Department of Occupational Medicine, Public health and Hazardous Substances, Institution for Statutory Accident Insurance and Prevention in the Health and Welfare Services, 22089 Hamburg, Germany;
- Competence Centre for Epidemiology and Health Services Research for Healthcare Professionals (CVcare), University Medical Centre Hamburg-Eppendorf (UKE), 20246 Hamburg, Germany
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30
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Li Z, Gehlen Y, Heizmann F, Grad S, Alini M, Richards RG, Kubosch D, Südkamp N, Izadpanah K, Kubosch EJ, Lang G. Preclinical ex-vivo Testing of Anti-inflammatory Drugs in a Bovine Intervertebral Degenerative Disc Model. Front Bioeng Biotechnol 2020; 8:583. [PMID: 32587853 PMCID: PMC7298127 DOI: 10.3389/fbioe.2020.00583] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 05/13/2020] [Indexed: 01/06/2023] Open
Abstract
Discogenic low back pain (LBP) is a main cause of disability and inflammation is presumed to be a major driver of symptomatic intervertebral disc degeneration (IDD). Anti-inflammatory agents are currently under investigation as they demonstrated to alleviate symptoms in patients having IDD. However, their underlying anti-inflammatory and regenerative activity is poorly explored. The present study sought to investigate the potential of Etanercept and Tofacitinib for maintaining disc homeostasis in a preclinical intervertebral disc (IVD) organ culture model within IVD bioreactors allowing for dynamic loading and nutrient exchange. Bovine caudal IVDs were cultured in a bioreactor system for 4 days to simulate physiological or degenerative conditions: (1) Phy—physiological loading (0.02–0.2 MPa; 0.2 Hz; 2 h/day) and high glucose DMEM medium (4.5 g/L); (2) Deg+Tumor necrosis factor α (TNF-α)—degenerative loading (0.32–0.5 MPa; 5 Hz; 2 h/day) and low glucose DMEM medium (2 g/L), with TNF-α injection. Etanercept was injected intradiscally while Tofacitinib was supplemented into the culture medium. Gene expression in the IVD tissue was measured by RT-qPCR. Release of nitric oxide (NO), interleukin 8 (IL-8) and glycosaminoglycan (GAG) into the IVD conditioned medium were analyzed. Cell viability in the IVD was assessed using lactate dehydrogenase and ethidium homodimer-1 staining. Immunohistochemistry was performed to assess protein expression of IL-1β, IL-6, IL-8, and collagen type II in the IVD tissue. Etanercept and Tofacitinib downregulated the expression of IL-1β, IL-6, IL-8, Matrix metalloproteinase 1 (MMP1), and MMP3 in the nucleus pulposus (NP) tissue and IL-1β, MMP3, Cyclooxygenase-2 (COX2), and Nerve growth factor (NGF) in the annulus fibrosus (AF) tissue. Furthermore, Etanercept significantly reduced the IL-1β positively stained cells in the outer AF and NP regions. Tofacitinib significantly reduced IL-1β and IL-8 positively stained cells in the inner AF region. Both, Etanercept and Tofacitinib reduced the GAG loss to the level under physiological culture condition. Etanercept and Tofacitinib are able to neutralize the proinflammatory and catabolic environment in the IDD organ culture model. However, combined anti-inflammatory and anabolic treatment may be required to constrain accelerated IDD and relieving inflammation-induced back pain.
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Affiliation(s)
- Zhen Li
- AO Research Institute Davos, Davos, Switzerland
| | - Yannik Gehlen
- AO Research Institute Davos, Davos, Switzerland.,Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Medical Center - Albert-Ludwigs-University of Freiburg, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Fabian Heizmann
- AO Research Institute Davos, Davos, Switzerland.,Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Medical Center - Albert-Ludwigs-University of Freiburg, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | | | - Mauro Alini
- AO Research Institute Davos, Davos, Switzerland
| | - R Geoff Richards
- AO Research Institute Davos, Davos, Switzerland.,Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Medical Center - Albert-Ludwigs-University of Freiburg, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - David Kubosch
- Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Medical Center - Albert-Ludwigs-University of Freiburg, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Norbert Südkamp
- Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Medical Center - Albert-Ludwigs-University of Freiburg, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Kaywan Izadpanah
- Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Medical Center - Albert-Ludwigs-University of Freiburg, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Eva Johanna Kubosch
- Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Medical Center - Albert-Ludwigs-University of Freiburg, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Gernot Lang
- Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Medical Center - Albert-Ludwigs-University of Freiburg, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
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Zaina F, Balagué F, Battié M, Karppinen J, Negrini S. Low back pain rehabilitation in 2020: new frontiers and old limits of our understanding. Eur J Phys Rehabil Med 2020; 56:212-219. [PMID: 32214063 DOI: 10.23736/s1973-9087.20.06257-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Low back pain (LBP) is the most common musculoskeletal condition affecting the quality of life of individuals, especially if persistent. Over the decades, a lot of work has been done in an attempt to reduce the negative impact of back pain, and help patients recover and maintain a better quality of life. New insights are coming from different fields of research, with a lot of work being done in searching for the etiology of LBP, describing the different phenotypes of symptomatic spines, and identifying factors involved in the persistence of the disease. Nevertheless, still a lot remains to be done to fully understand the problem of back pain and its causes. Even today, there appears to be a wide gap between basic science and applied rehabilitation research on LBP. The first is still searching in many different ways for the "holy grail" of the pain generator and providing very interesting results with particular relevance to surgical, drug-related and other biological approaches, while the second is pragmatically focusing on modifiable factors that may influence back pain outcomes. Yet, personalized, effective spine care has not been fully realized. While we recognize the potential of basic science advances, there is an immediate need for more translational rehabilitation research, as well as studies focused on the effectiveness of rehabilitation approaches.
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Affiliation(s)
- Fabio Zaina
- ISICO (Italian Scientific Spine Institute), Milan, Italy -
| | - Federico Balagué
- Department of Rheumatology, HFR Fribourg-Hôpital Cantonal, Fribourg, Switzerland
| | - Michele Battié
- Faculty of Health Sciences and Western's Bone and Joint Institute, Western University, London, ON, Canada
| | - Jaro Karppinen
- Medical Research Center, Oulu University Hospital, University of Oulu, Oulu, Finland.,Rehabilitation Unit of South Karelia Social and Health Care District, Oulu, Finland
| | - Stefano Negrini
- Department of Biomedical, Surgical and Dental Sciences, "La Statale" University, Milan, Italy.,IRCCS Galeazzi Orthopedic Institute, Milan, Italy
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32
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Sun Z, Liu B, Luo ZJ. The Immune Privilege of the Intervertebral Disc: Implications for Intervertebral Disc Degeneration Treatment. Int J Med Sci 2020; 17:685-692. [PMID: 32210719 PMCID: PMC7085207 DOI: 10.7150/ijms.42238] [Citation(s) in RCA: 93] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 01/29/2020] [Indexed: 02/07/2023] Open
Abstract
The intervertebral disc (IVD) is the largest avascular organ of the body. It is composed of three parts: the nucleus pulposus (NP), the annulus fibrosus (AF) and the cartilaginous endplate (CEP). The central NP is surrounded by the AF and sandwiched by the two CEPs ever since its formation. This unique structure isolates the NP from the immune system of the host. Additionally, molecular factors expressed in IVD have been shown inhibitive effect on immune cells and cytokines infiltration. Therefore, the IVD has been identified as an immune privilege organ. The steady state of immune privilege is fundamental to the homeostasis of the IVD. The AF and the CEP, along with the immunosuppressive molecular factors are defined as the blood-NP barrier (BNB), which establishes a strong barrier to isolate the NP from the host immune system. When the BNB is damaged, the auto-immune response of the NP occurs with various downstream cascade reactions. This effect plays an important role in the whole process of IVD degeneration and related complications, such as herniation, sciatica and spontaneous herniated NP regression. Taken together, an enhanced understanding of the immune privilege of the IVD could provide new targets for the treatment of symptomatic IVD disease. However, the underlying mechanism above is still not fully clarified. Accordingly, the current study will extensively review and discuss studies regarding the immune privilege of the IVD.
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Affiliation(s)
- Zhen Sun
- Department of Orthopedic, Xijing Hospital, Fourth Military Medical University. Western Changle Road, Xi'an, 710032, Shannxi Provence, P. R. China
| | - Bing Liu
- Department of Radiology, Xijing Hospital, Fourth Military Medical University. Western Changle Road, Xi'an, 710032, Shannxi Provence, P. R. China
| | - Zhuo-Jing Luo
- Department of Orthopedic, Xijing Hospital, Fourth Military Medical University. Western Changle Road, Xi'an, 710032, Shannxi Provence, P. R. China
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