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Shang Z, Chang H, Xu J, Ding W, Wang H, Zhang D. Characteristic of Paraspinal Muscle Change in Coronal Sub-type of Degenerative Lumbar Scoliosis and its Potential Clinical Significance. Orthop Surg 2024. [PMID: 39117580 DOI: 10.1111/os.14185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 07/14/2024] [Accepted: 07/21/2024] [Indexed: 08/10/2024] Open
Abstract
OBJECTIVE Clarifying paraspinal muscle (PM) change in degenerative lumbar scoliosis (DLS) is positive to evaluate the progression of scoliosis. This research compares the characteristic of PM change among different coronal sub-types of DLS and explores its potential clinical significance. METHODS A total of 84 DLS patients between June 2019 to December 2021 were retrospectively analyzed. Patients were classified into three types based on the coronal balance distance (CBD): Type A, CBD <3 cm; Type B: C7 Plumb Line (C7PL) shifted to the concave side of the curve, and CBD >3 cm; Type C: C7PL shifted to the convex side of the curve, and CBD >3 cm. Fat infiltration rates in the multifidus (MS) and erector spinae (ES) at the apex of the main and fractional curves, and spinopelvic parameters were analyzed statistically. Pearson's or Spearman's correlation was applied to analyze the correlation between asymmetric degree of PM change and these parameters in three types. RESULTS There were 62 cases with coronal sub-Type A, 6 cases with Type B, and 16 cases with Type C. Patients in Type B and C demonstrated higher fat infiltration in MS on the concave side of both the main and fractional curves when compared to those in Type A. The asymmetric degree of ES change was positively correlated with CBD at the apex of the main curve in Type B and at the apex of the fractional curve in Type C respectively, and that of MS was positively correlated with apical vertebral rotation, while negatively strong-correlated with pelvic incidence and sacral slope in Type C. CONCLUSION PM fatty infiltration presented difference among varied coronal sub-types of DLS patients. The CBD in Type B and C patients was correlated with the asymmetric degree of ES change.
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Affiliation(s)
- Zhenguo Shang
- Department of Spinal Surgery, Hebei Medical University Third Hospital, Shijiazhuang, China
| | - Hengrui Chang
- Department of Spinal Surgery, Hebei Medical University Third Hospital, Shijiazhuang, China
| | - Jiaxin Xu
- Department of Spinal Surgery, Hebei Medical University Third Hospital, Shijiazhuang, China
| | - Wenyuan Ding
- Department of Spinal Surgery, Hebei Medical University Third Hospital, Shijiazhuang, China
- Hebei Joint International Research Center for Spinal Diseases, Shijiazhuang, China
| | - Hui Wang
- Department of Spinal Surgery, Hebei Medical University Third Hospital, Shijiazhuang, China
| | - Di Zhang
- Department of Spinal Surgery, Hebei Medical University Third Hospital, Shijiazhuang, China
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Raad M, Kim AH, Durand WM, Kebaish KM. Low bone mineral density: a primer for the spine surgeon. Spine Deform 2024:10.1007/s43390-024-00913-z. [PMID: 39060777 DOI: 10.1007/s43390-024-00913-z] [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: 04/04/2024] [Accepted: 06/01/2024] [Indexed: 07/28/2024]
Abstract
Within spinal surgery, low bone mineral density is associated with several postoperative complications, such as proximal junctional kyphosis, pseudoarthrosis, and screw loosening. Although modalities such as CT and MRI can be utilized to assess bone quality, DEXA scans, the "Gold Standard" for diagnosing osteoporosis, is not routinely included in preoperative workup. With an increasing prevalence of osteoporosis in an aging population, it is critical for spine surgeons to understand the importance of evaluating bone mineral density preoperatively to optimize postoperative outcomes. The purpose of this state-of-the-art review is to provide surgeons a summary of the evaluation, treatment, and implications of low bone mineral density in patients who are candidates for spine surgery.
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Affiliation(s)
- Micheal Raad
- Department of Orthopaedic Surgery, The Johns Hopkins University, 601 N Caroline St. 5th Floor, Baltimore, MD, 21205, USA
| | - Andrew H Kim
- Department of Orthopaedic Surgery, The Johns Hopkins University, 601 N Caroline St. 5th Floor, Baltimore, MD, 21205, USA
| | - Wesley M Durand
- Department of Orthopaedic Surgery, The Johns Hopkins University, 601 N Caroline St. 5th Floor, Baltimore, MD, 21205, USA
| | - Khaled M Kebaish
- Department of Orthopaedic Surgery, The Johns Hopkins University, 601 N Caroline St. 5th Floor, Baltimore, MD, 21205, USA.
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Wang Z, Zhao Z, Li Z, Gao J, Li Y. Fatty Infiltration in Paraspinal Muscles: Predicting the Outcome of Lumbar Surgery and Postoperative Complications. World Neurosurg 2024; 190:218-227. [PMID: 39019431 DOI: 10.1016/j.wneu.2024.07.074] [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: 06/21/2024] [Accepted: 07/08/2024] [Indexed: 07/19/2024]
Abstract
Lumbar spine disorders often cause lower back pain, lower limb radiating pain, restricted movement, and neurological dysfunction, which seriously affect the quality of life of middle-aged and older people. It has been found that pathological changes in the spine often cause changes in the morphology and function of the paraspinal muscles (PSMs). Fatty infiltration (FI) in PSMs is closely associated with disc degeneration and Modic changes. And FI causes inflammatory responses that exacerbate the progression of lumbar spine disease and disrupt postoperative recovery. Magnetic resonance imaging can better distinguish between fat and muscle tissue with the threshold technique. Three-dimensional magnetic resonance imaging multi-echo imaging techniques such as water-fat separation and proton density are currently popular for studying FI. Muscle fat content obtained based on these imaging sequences has greater accuracy, visualization, acquisition speed, and utility. The proton density fat fraction calculated from these techniques has been shown to evaluate more subtle changes in PSMs. Magnetic resonance spectroscopy can accurately reflect the relationship between FI and the degeneration of PSMs by measuring intracellular and extracellular lipid values to quantify muscle fat. We have pooled and analyzed published studies and found that patients with spinal disorders often exhibit FI in PSMs. Some studies suggest an association between FI and adverse surgical outcomes, although conflicting results exist. These suggest that clinicians should consider FI when assessing surgical risks and outcomes. Future studies should focus on understanding the biological mechanisms underlying FI and its predictive value in spinal surgery, providing valuable insights for clinical decision-making.
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Affiliation(s)
- Zairan Wang
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Zijun Zhao
- Spine Center, Sanbo Brain Hospital, Capital Medical University, Beijing, China
| | - Zhimin Li
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Jun Gao
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Yongning Li
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China; Department of International Medical Services, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China.
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Kumar RP, Adida S, Lavadi RS, Mitha R, Legarreta AD, Hudson JS, Shah M, Diebo B, Fields DP, Buell TJ, Hamilton DK, Daniels AH, Agarwal N. A guide to selecting upper thoracic versus lower thoracic uppermost instrumented vertebra in adult spinal deformity correction. 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; 33:2742-2750. [PMID: 38522054 DOI: 10.1007/s00586-024-08206-9] [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: 12/15/2023] [Revised: 01/26/2024] [Accepted: 02/24/2024] [Indexed: 03/25/2024]
Abstract
PURPOSE Operative treatment of adult spinal deformity (ASD) has been shown to improve patient health-related quality of life (HRQOL). Selection of the uppermost instrumented vertebra (UIV) in either the upper thoracic (UT) or lower thoracic (LT) spine is a pivotal decision with effects on operative and postoperative outcomes. This review overviews the multifaceted decision-making process for UIV selection in ASD correction. METHODS PubMed was queried for articles using the keywords "uppermost instrumented vertebra", "upper thoracic", "lower thoracic", and "adult spinal deformity". RESULTS Optimization of UIV selection may lead to superior deformity correction, better patient-reported outcomes, and lower risk of proximal junctional kyphosis (PJK) and failure (PJF). Patient alignment characteristics, including preoperative thoracic kyphosis, coronal deformity, and the magnitude of sagittal correction influence surgical decision-making when selecting a UIV, while comorbidities such as poor body mass index, osteoporosis, and neuromuscular pathology should also be taken in to account. Additionally, surgeon experience and resources available to the hospital may also play a role in this decision. Currently, it is incompletely understood whether postoperative HRQOLs, functional and radiographic outcomes, and complications after surgery differ between selection of the UIV in either the UT or LT spine. CONCLUSION The correct selection of the UIV in surgical planning is a challenging task, which requires attention to preoperative alignment, patient comorbidities, clinical characteristics, available resources, and surgeon-specific factors such as experience.
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Affiliation(s)
- Rohit Prem Kumar
- Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Samuel Adida
- Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Raj Swaroop Lavadi
- Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Rida Mitha
- Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Andrew D Legarreta
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Joseph S Hudson
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Manan Shah
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Bassel Diebo
- Department of Orthopaedic Surgery, Warren Alpert School of Medicine, Brown University, Providence, RI, USA
| | - Daryl P Fields
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Thomas J Buell
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - D Kojo Hamilton
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Alan H Daniels
- Department of Orthopaedic Surgery, Warren Alpert School of Medicine, Brown University, Providence, RI, USA
| | - Nitin Agarwal
- Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA.
- Neurological Surgery, Veterans Affairs Pittsburgh Healthcare System, Pittsburgh, PA, USA.
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Han G, Fan Z, Yue L, Zou D, Zhou S, Qiu W, Sun Z, Li W. Paraspinal muscle endurance and morphology (PMEM) score: a new method for prediction of postoperative mechanical complications after lumbar fusion. Spine J 2024:S1529-9430(24)00262-6. [PMID: 38843961 DOI: 10.1016/j.spinee.2024.05.010] [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: 11/17/2023] [Revised: 05/21/2024] [Accepted: 05/27/2024] [Indexed: 06/20/2024]
Abstract
BACKGROUND CONTEXT Although the relationships between paraspinal muscles and lumbar degenerative disorders have been acknowledged, paraspinal muscle evaluation has not been incorporated into clinical therapies. PURPOSE We aimed to establish a novel paraspinal muscle endurance and morphology (PMEM) score to better predict mechanical complications after lumbar fusion. STUDY DESIGN Prospective cohort study. PATIENT SAMPLE A total of 212 patients undergoing posterior lumbar interbody fusion with at least 1 year of follow-up were finally included. OUTCOME MEASURES Mechanical complications including screw loosening, pseudarthrosis and other complications like cage subsidence, and patient-reported outcomes were evaluated at last follow-up. METHODS The PMEM score comprised 1 functional muscular parameter (the performance time of the endurance test) and 2 imaging muscular parameters (relative functional cross-sectional area [rFCSA] of paraspinal extensor muscles [PEM] and psoas major [PS] on magnetic resonance imaging). The score was established based on a weighted scoring system created by rounding β regression coefficients to the nearest integer in univariate logistic regression. The diagnostic performance of the PMEM score was determined by binary logistic regression model and receiver operating characteristic (ROC) curve with the area under the curve (AUC). Additionally, pairwise comparisons of ROC curves were conducted to compare the diagnostic performance of the PMEM score with conventional methods based on a single muscular parameter. Moreover, differences of mechanical complications and patient-reported outcomes among the PMEM categories were analyzed using Chi-square test with Bonferroni correction. RESULTS The PMEM score, calculated by adding the scores for each parameter, ranges from 0 to 5 points. Patients with higher PMEM scores exhibited higher rates of mechanical complications (p<.001). Binary logistic regression revealed that the PMEM score was an independent factor of mechanical complications (p<.001, OR=2.002). Moreover, the AUC of the PMEM score (AUC=0.756) was significantly greater than those of the conventional methods including the endurance test (AUC=0.691, Z=2.036, p<.05), PEM rFCSA (AUC=.690, Z=2.016, p<.05) and PS rFCSA (AUC=0.640, Z=2.771, p<.01). In terms of the PMEM categories, a score of 0-1 was categorized as low-risk muscular state of mechanical complications; 2-3, as moderate; and 4-5, as high-risk state. Moving from the low-risk state to the high-risk state, there was a progressive increase in the rates of mechanical complications (13.8% vs. 32.1% vs. 72.7%; p<.001), and a decrease in the rates of clinically significant improvement of patient-reported outcomes (all p<.05). CONCLUSIONS The PMEM score might comprehensively evaluate paraspinal muscle degeneration and exhibit greater ability in predicting mechanical complications than the conventional evaluations after lumbar fusion. Surgeons might develop individualized treatment strategy tailored to different muscle degeneration statuses reflected by the PMEM score for decreasing the risk of mechanical complications.
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Affiliation(s)
- Gengyu Han
- Department of Orthopaedics, Peking University Third Hospital, Beijing, 100191, China; Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing, 100191, China; Beijing Key Laboratory of Spinal Disease Research, Beijing, 100191, China
| | - Zheyu Fan
- Department of Orthopaedics, Peking University Third Hospital, Beijing, 100191, China; Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing, 100191, China; Beijing Key Laboratory of Spinal Disease Research, Beijing, 100191, China
| | - Lihao Yue
- Department of Orthopaedics, Peking University Third Hospital, Beijing, 100191, China; Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing, 100191, China; Beijing Key Laboratory of Spinal Disease Research, Beijing, 100191, China
| | - Da Zou
- Department of Orthopaedics, Peking University Third Hospital, Beijing, 100191, China; Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing, 100191, China; Beijing Key Laboratory of Spinal Disease Research, Beijing, 100191, China
| | - Siyu Zhou
- Department of Orthopaedics, Peking University Third Hospital, Beijing, 100191, China; Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing, 100191, China; Beijing Key Laboratory of Spinal Disease Research, Beijing, 100191, China
| | - Weipeng Qiu
- Department of Orthopaedics, Peking University Third Hospital, Beijing, 100191, China; Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing, 100191, China; Beijing Key Laboratory of Spinal Disease Research, Beijing, 100191, China
| | - Zhuoran Sun
- Department of Orthopaedics, Peking University Third Hospital, Beijing, 100191, China; Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing, 100191, China; Beijing Key Laboratory of Spinal Disease Research, Beijing, 100191, China
| | - Weishi Li
- Department of Orthopaedics, Peking University Third Hospital, Beijing, 100191, China; Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing, 100191, China; Beijing Key Laboratory of Spinal Disease Research, Beijing, 100191, China.
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Filley A, Baldwin A, Ben-Natan AR, Hansen K, Arora A, Xiao A, Hammond D, Chen C, Tweedt I, Rohde J, Link T, Berven S, Sawyer A. The influence of osteoporosis on mechanical complications in lumbar fusion surgery: a systematic review. NORTH AMERICAN SPINE SOCIETY JOURNAL 2024; 18:100327. [PMID: 38962714 PMCID: PMC11219986 DOI: 10.1016/j.xnsj.2024.100327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 04/27/2024] [Accepted: 04/30/2024] [Indexed: 07/05/2024]
Abstract
Background Adults undergoing spine surgery often have underlying osteoporosis, which may be a risk factor for postoperative complications. Although these associations have been described, osteoporosis remains profoundly underdiagnosed and undertreated in the spine surgery population. A thorough, comprehensive systematic review summarizing the relationships between bone mineral density (BMD) and specific complications of lumbar fusion surgery could be a valuable resource for raising awareness and supporting clinical practice changes. Methods PubMed, Embase, and Web of Science databases were searched for original clinical research articles reporting on BMD, or surrogate measure, as a predictor of complications in adults undergoing elective lumbar fusion for degenerative disease or deformity. Endpoints included cage subsidence, screw loosening, pseudarthrosis, vertebral fracture, junctional complications, and reoperation. Results A total of 71 studies comprising 12,278 patients were included. Overall, considerable heterogeneity in study populations, methods of bone health assessment, and definition and evaluation of clinical endpoints precluded meta-analysis. Nevertheless, low BMD was associated with higher rates of implant failures like cage subsidence and screw loosening, which were often diagnosed with concomitant pseudarthrosis. Osteoporosis was also a significant risk factor for proximal junctional kyphosis, particularly due to fracture. Many studies found surgical site-specific BMD to best predict focal complications. Functional outcomes were inconsistently addressed. Conclusions Our findings suggest osteoporosis is a significant risk factor for mechanical complications of lumbar fusion. These results emphasize the importance of preoperative osteoporosis screening, which allows for medical and surgical optimization of high-risk patients. This review also highlights current practical challenges facing bone health evaluation in patients undergoing elective surgery. Future prospective studies using standardized methods are necessary to strengthen existing evidence, identify optimal predictive thresholds, and establish specialty-specific practice guidelines. In the meantime, an awareness of the surgical implications of osteoporosis and utility of preoperative screening can provide for more informed, effective patient care.
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Affiliation(s)
- Anna Filley
- Department of Orthopaedic Surgery, University of California, 435 Warren Drive, Apt 11, San Francisco, CA, USA
| | - Avionna Baldwin
- Department of Orthopaedic Surgery, University of California, 435 Warren Drive, Apt 11, San Francisco, CA, USA
| | - Alma Rechav Ben-Natan
- Department of Neurological Surgery, University of California, San Francisco, CA, USA
| | - Keith Hansen
- Department of General Surgery, University of California, San Francisco, CA, USA
| | - Ayush Arora
- Department of Orthopaedic Surgery, University of California, 435 Warren Drive, Apt 11, San Francisco, CA, USA
| | - Angel Xiao
- Department of Orthopaedic Surgery, University of California, 435 Warren Drive, Apt 11, San Francisco, CA, USA
| | - Deana Hammond
- Department of Orthopaedic Surgery, University of California, 435 Warren Drive, Apt 11, San Francisco, CA, USA
| | - Caressa Chen
- Loyola University Medical Center; Maywood IL, USA
| | - Isobel Tweedt
- Department of Orthopaedic Surgery, University of California, 435 Warren Drive, Apt 11, San Francisco, CA, USA
- Western University of Health Sciences College of Osteopathic Medicine of the Pacific, USA
| | - James Rohde
- Department of Integrative Biology, University of California Berkeley, USA
| | - Thomas Link
- Department of Radiology and Biomedical Imagery, University of California, San Francisco, CA, USA
| | - Sigurd Berven
- Department of Orthopaedic Surgery, University of California, 435 Warren Drive, Apt 11, San Francisco, CA, USA
| | - Aenor Sawyer
- Department of Orthopaedic Surgery, University of California, 435 Warren Drive, Apt 11, San Francisco, CA, USA
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Han G, Wang W, Yue L, Fan Z, Li Z, Li J, Sun Z, Li W. Age-Dependent Differences of Paraspinal Muscle Endurance and Morphology in Chinese Community Population Without Chronic Low Back Pain. Global Spine J 2024; 14:235-243. [PMID: 35584688 PMCID: PMC10676164 DOI: 10.1177/21925682221103507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
STUDY DESIGN Cross-sectional study. OBJECTIVES Our aim was to describe age-dependent changes of lumbar paraspinal muscle endurance and morphology in Chinese healthy population. We also explored the relationship between paraspinals endurance and morphology. METHODS A total of 181 participants from Chinese community population without chronic low back pain were included. The participants were divided into three groups: young (20-39 years old, n = 29), middle (40-59 years old, n = 93), and elderly (≥ 60 years old, n = 59). The Ito test was performed to evaluate the isometric endurance of paraspinal muscles. The total cross-sectional area (TCSA) and fat infiltration (FI) of multifidus (MF) and erector spinae (ES) were measured at L1-L5 levels on magnetic resonance imaging. Physical activity level was evaluated using the physical activity index and comorbidities were assessed by the modified 5-item frailty index. RESULTS The elderly group had a shorter performance time of endurance test than the young group and middle-aged group. Correlation analysis showed that age had a significant correlation with endurance test, the average MF TCSA, MF FI, ES TCSA and ES FI of L1-5. In addition, PAI had a significant correlation with endurance test and MF FI. In multiple linear regression analysis, paraspinals endurance was associated with MF FI, ES FI, physical activity level and comorbidities. CONCLUSION Age-related decreases in paraspinals endurance and TCSA, and an increase in FI were revealed. Besides, paraspinal muscles FI, but not TCSA, was negatively associated with the endurance of paraspinals.
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Affiliation(s)
- Gengyu Han
- Department of Orthopaedics, Peking University Third Hospital, Beijing, China
- Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing, China
- Beijing Key Laboratory of Spinal Disease Research, Beijing, China
| | - Wei Wang
- Department of Orthopaedics, Tianjin Hospital, Beijing, China
| | - Lihao Yue
- Peking University Health Science Center, Beijing, China
| | - Zheyu Fan
- Peking University Health Science Center, Beijing, China
| | - Zonglin Li
- Peking University Health Science Center, Beijing, China
| | - Jiaming Li
- Peking University Health Science Center, Beijing, China
| | - Zhuoran Sun
- Department of Orthopaedics, Peking University Third Hospital, Beijing, China
- Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing, China
- Beijing Key Laboratory of Spinal Disease Research, Beijing, China
| | - Weishi Li
- Department of Orthopaedics, Peking University Third Hospital, Beijing, China
- Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing, China
- Beijing Key Laboratory of Spinal Disease Research, Beijing, China
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Liu Y, Yuan L, Zeng Y, Li W. Risk Factors for Distal Junctional Problems Following Long Instrumented Fusion for Degenerative Lumbar Scoliosis: Are they Related to the Paraspinal Muscles. Orthop Surg 2023; 15:3055-3064. [PMID: 37749777 PMCID: PMC10694019 DOI: 10.1111/os.13878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 07/31/2023] [Accepted: 08/08/2023] [Indexed: 09/27/2023] Open
Abstract
PURPOSE Although the incidence of distal junctional problems (DJPs) following long construct-based treatment for degenerative lumbar scoliosis (DLS) is lower, affected patients are more likely to require revision surgery when they occur. So the aim of this study is to identify risk factors associated with DJPs to avoid its occurrence by at least 1-year follow-up. METHODS A total of 182 DLS patients undergoing long instrumented fusion surgery (≥4 levels) between February 2011 and March 2022 were retrospectively analyzed. Patients were placed into the DJP group if a DJP occurred at the final follow-up; patients without mechanical complications were matched 1:2 according to age, sex and BMI as the control group. Patient characteristics, surgical variables, radiographic parameters, lumbar muscularity and fatty degeneration were analyzed statistically. The statistical differences in the results between the two groups (p values <0.05) and other variables selected by experts were entered into a multivariate logistic regression model, and the forwards likelihood ratio method was used to analyze the independent risk factors for DJPs. RESULTS Twenty-four (13.2%) patients suffered a DJP in the postoperative period and the reoperation rate was 8.8%. On univariate analysis, the lowest instrumented vertebra (LIV) CT value (p = 0.042); instrumented levels (p = 0.030); preoperative coronal vertical axis (CVA) (p = 0.046), thoracolumbar kyphosis (TLK) (p = 0.006), L4-S1 lordosis (p = 0.013), sacral slop (SS) (p = 0.030), pelvic tilt (PT) classification (p = 0.004), and sagittal vertical axis (SVA) (p = 0.021); TLK correction (p = 0.049); post-operative CVA (p = 0.029); Overall, There was no significant difference in the paraspinal muscle parameters between the two groups. On multivariate analysis, instrumented levels (OR = 1.595; p = 0.035), preoperative SVA (OR = 1.016; p = 0.022) and preoperative PT (OR = 0.873; p = 0.001) were identified as significant independent risk factors for DJP. CONCLUSION Longer instrumented levels, a greater preoperative SVA and a smaller PT were found to be strongly associated with the presence of DJPs in patients treated for DLS. The degeneration of the paraspinal muscles may not be related to the occurrence of DJPs. For DLS patients, the occurrence of DJP can be reduced by selecting reasonable fusion segments and evaluating the patient's sagittal balance and spino-pelvic parameters before operation.
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Affiliation(s)
- Yinhao Liu
- Orthopaedic DepartmentPeking University Third HospitalBeijingChina
- Peking University Health Science CenterBeijingChina
- Beijing Key Laboratory of Spinal Disease ResearchBeijingChina
- Engineering Research Center of Bone and Joint Precision Medicine, Ministry of EducationBeijingChina
| | - Lei Yuan
- Orthopaedic DepartmentPeking University Third HospitalBeijingChina
- Beijing Key Laboratory of Spinal Disease ResearchBeijingChina
- Engineering Research Center of Bone and Joint Precision Medicine, Ministry of EducationBeijingChina
| | - Yan Zeng
- Orthopaedic DepartmentPeking University Third HospitalBeijingChina
- Beijing Key Laboratory of Spinal Disease ResearchBeijingChina
- Engineering Research Center of Bone and Joint Precision Medicine, Ministry of EducationBeijingChina
| | - Weishi Li
- Orthopaedic DepartmentPeking University Third HospitalBeijingChina
- Beijing Key Laboratory of Spinal Disease ResearchBeijingChina
- Engineering Research Center of Bone and Joint Precision Medicine, Ministry of EducationBeijingChina
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Johnson GW, Chanbour H, Ali MA, Chen J, Metcalf T, Doss D, Younus I, Jonzzon S, Roth SG, Abtahi AM, Stephens BF, Zuckerman SL. Artificial Intelligence to Preoperatively Predict Proximal Junction Kyphosis Following Adult Spinal Deformity Surgery: Soft Tissue Imaging May Be Necessary for Accurate Models. Spine (Phila Pa 1976) 2023; 48:1688-1695. [PMID: 37644737 PMCID: PMC11101214 DOI: 10.1097/brs.0000000000004816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 08/21/2023] [Indexed: 08/31/2023]
Abstract
STUDY DESIGN Retrospective cohort. OBJECTIVE In a cohort of patients undergoing adult spinal deformity (ASD) surgery, we used artificial intelligence to compare three models of preoperatively predicting radiographic proximal junction kyphosis (PJK) using: (1) traditional demographics and radiographic measurements, (2) raw preoperative scoliosis radiographs, and (3) raw preoperative thoracic magnetic resonance imaging (MRI). SUMMARY OF BACKGROUND DATA Despite many proposed risk factors, PJK following ASD surgery remains difficult to predict. MATERIALS AND METHODS A single-institution, retrospective cohort study was undertaken for patients undergoing ASD surgery from 2009 to 2021. PJK was defined as a sagittal Cobb angle of upper-instrumented vertebra (UIV) and UIV+2>10° and a postoperative change in UIV/UIV+2>10°. For model 1, a support vector machine was used to predict PJK within 2 years postoperatively using clinical and traditional sagittal/coronal radiographic variables and intended levels of instrumentation. Next, for model 2, a convolutional neural network (CNN) was trained on raw preoperative lateral and posterior-anterior scoliosis radiographs. Finally, for model 3, a CNN was trained on raw preoperative thoracic T1 MRIs. RESULTS A total of 191 patients underwent ASD surgery with at least 2-year follow-up and 89 (46.6%) developed radiographic PJK within 2 years. Model 1: Using clinical variables and traditional radiographic measurements, the model achieved a sensitivity: 57.2% and a specificity: 56.3%. Model 2: a CNN with raw scoliosis x-rays predicted PJK with a sensitivity: 68.2% and specificity: 58.3%. Model 3: a CNN with raw thoracic MRIs predicted PJK with average sensitivity: 73.1% and specificity: 79.5%. Finally, an attention map outlined the imaging features used by model 3 elucidated that soft tissue features predominated all true positive PJK predictions. CONCLUSIONS The use of raw MRIs in an artificial intelligence model improved the accuracy of PJK prediction compared with raw scoliosis radiographs and traditional clinical/radiographic measurements. The improved predictive accuracy using MRI may indicate that PJK is best predicted by soft tissue degeneration and muscle atrophy.
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Affiliation(s)
| | - Hani Chanbour
- Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, TN
| | - Mir Amaan Ali
- Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, TN
| | - Jeffrey Chen
- Vanderbilt University School of Medicine, Nashville, TN
| | - Tyler Metcalf
- Department of Orthopedic Surgery, Vanderbilt University Medical Center, Nashville, TN
| | - Derek Doss
- Vanderbilt University School of Medicine, Nashville, TN
| | - Iyan Younus
- Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, TN
| | - Soren Jonzzon
- Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, TN
| | - Steven G. Roth
- Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, TN
| | - Amir M. Abtahi
- Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, TN
- Department of Orthopedic Surgery, Vanderbilt University Medical Center, Nashville, TN
| | - Byron F. Stephens
- Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, TN
- Department of Orthopedic Surgery, Vanderbilt University Medical Center, Nashville, TN
| | - Scott L. Zuckerman
- Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, TN
- Department of Orthopedic Surgery, Vanderbilt University Medical Center, Nashville, TN
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10
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Tsutsui S, Hashizume H, Iwasaki H, Takami M, Ishimoto Y, Nagata K, Yamada H. Sarcopenia at the upper instrumented vertebra is more significantly associated with proximal junctional kyphosis after long fusion for adult spinal deformity surgery than osteopenia. J Clin Neurosci 2023; 116:13-19. [PMID: 37597329 DOI: 10.1016/j.jocn.2023.08.012] [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: 05/20/2023] [Revised: 08/10/2023] [Accepted: 08/12/2023] [Indexed: 08/21/2023]
Abstract
Proximal junctional kyphosis (PJK) is a major mechanical complication after adult spinal deformity (ASD) surgery, and is multifactorial. Osteopenia and sarcopenia are patient risk factors, but it has not yet been well-documented which of them is the more significant risk factor. We retrospectively studied patients older than 50 years who underwent ASD surgery from the lower thoracic spine to the pelvis. In addition to patient demographic data and pre- and post-operative radiographic sagittal parameters (PI: pelvic incidence; LL: lumbar lordosis; SVA: sagittal vertical axis; PT: pelvic tilt), Hounsfield unit (HU) values on preoperative computed tomography and cross sectional area (CSA) and fatty infiltration ratio (FI%) of the paraspinal musculature (PSM) on preoperative magnetic resonance image were measured from the upper-instrumented vertebra (UIV) to UIV + 2 and averaged. PJK was observed in 11 of 29 patients. There was no statistical difference between the patients with and without PJK in age at surgery, sex, body mass index, bone mineral density, preoperative PI-LL, SVA, PT, postoperative PI-LL, SVA, PT, HU, and CSA. FI% in patients with PJK (25.0) was significantly higher than that (15.3) in patients without PJK (P = 0.001). Logistic regression analysis identified FI% of PSM as a significant independent factor of PJK (odds ratio, 1.973; 95% confidence interval, 1.290-5.554; P < 0.0001). After successful elimination of possible factors related to PJK other than sarcopenia and osteopenia, sarcopenia assessed by fatty degeneration of the PSM at the UIV was shown to be a more important factor than osteopenia for PJK after long fusion for ASD.
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Affiliation(s)
- Shunji Tsutsui
- Department of Orthopedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama 641-8510, Japan.
| | - Hiroshi Hashizume
- Department of Orthopedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama 641-8510, Japan
| | - Hiroshi Iwasaki
- Department of Orthopedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama 641-8510, Japan
| | - Masanari Takami
- Department of Orthopedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama 641-8510, Japan
| | - Yuyu Ishimoto
- Department of Orthopedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama 641-8510, Japan
| | - Keiji Nagata
- Department of Orthopedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama 641-8510, Japan
| | - Hiroshi Yamada
- Department of Orthopedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama 641-8510, Japan
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11
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Suo M, Zhang J, Sun T, Wang J, Liu X, Huang H, Li Z. The association between morphological characteristics of paraspinal muscle and spinal disorders. Ann Med 2023; 55:2258922. [PMID: 37722876 PMCID: PMC10512810 DOI: 10.1080/07853890.2023.2258922] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 09/07/2023] [Indexed: 09/20/2023] Open
Abstract
BACKGROUND Spinal disorders affect millions of people worldwide, and can cause significant disability and pain. The paraspinal muscles, located on either side of the spinal column, play a crucial role in the movement, support, and stabilization of the spine. Many spinal disorders can affect paraspinal muscles, as evidenced by changes in their morphology, including hypertrophy, atrophy, and degeneration. OBJECTIVES The objectives of this review were to examine the current literature on the relationship between the paraspinal muscles and spinal disorders, summarize the methods used in previous studies, and identify areas for future research. METHODS We reviewed studies on the morphological characteristics of the paravertebral muscle and discussed their relationship with spinal disorders, as well as the current limitations and future research directions. RESULTS The paraspinal muscles play a critical role in spinal disorders and are important targets for the treatment and prevention of spinal disorders. Clinicians should consider the role of the paraspinal muscles in the development and progression of spinal disorders and incorporate assessments of the paraspinal muscle function in clinical practice. CONCLUSION The findings of this review highlight the need for further research to better understand the relationship between the paraspinal muscles and spinal disorders, and to develop effective interventions to improve spinal health and reduce the burden of spinal disorders.
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Affiliation(s)
- Moran Suo
- Department of Orthopedics, First Affiliated Hospital of Dalian Medical University, Dalian, P.R. China
- Key Laboratory of Molecular Mechanism for Repair and Remodeling of Orthopedic Diseases, Liaoning Province, P.R. China
| | - Jing Zhang
- Department of Orthopedics, First Affiliated Hospital of Dalian Medical University, Dalian, P.R. China
- Key Laboratory of Molecular Mechanism for Repair and Remodeling of Orthopedic Diseases, Liaoning Province, P.R. China
| | - Tianze Sun
- Department of Orthopedics, First Affiliated Hospital of Dalian Medical University, Dalian, P.R. China
- Key Laboratory of Molecular Mechanism for Repair and Remodeling of Orthopedic Diseases, Liaoning Province, P.R. China
| | - Jinzuo Wang
- Department of Orthopedics, First Affiliated Hospital of Dalian Medical University, Dalian, P.R. China
- Key Laboratory of Molecular Mechanism for Repair and Remodeling of Orthopedic Diseases, Liaoning Province, P.R. China
| | - Xin Liu
- Department of Orthopedics, First Affiliated Hospital of Dalian Medical University, Dalian, P.R. China
- Key Laboratory of Molecular Mechanism for Repair and Remodeling of Orthopedic Diseases, Liaoning Province, P.R. China
| | - Huagui Huang
- Department of Orthopedics, First Affiliated Hospital of Dalian Medical University, Dalian, P.R. China
- Key Laboratory of Molecular Mechanism for Repair and Remodeling of Orthopedic Diseases, Liaoning Province, P.R. China
| | - Zhonghai Li
- Department of Orthopedics, First Affiliated Hospital of Dalian Medical University, Dalian, P.R. China
- Key Laboratory of Molecular Mechanism for Repair and Remodeling of Orthopedic Diseases, Liaoning Province, P.R. China
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Lee BJ, Bae SS, Choi HY, Park JH, Hyun SJ, Jo DJ, Cho Y. Proximal Junctional Kyphosis or Failure After Adult Spinal Deformity Surgery - Review of Risk Factors and Its Prevention. Neurospine 2023; 20:863-875. [PMID: 37798982 PMCID: PMC10562224 DOI: 10.14245/ns.2346476.238] [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: 04/28/2023] [Revised: 06/06/2023] [Accepted: 06/16/2023] [Indexed: 10/07/2023] Open
Abstract
Proximal junction kyphosis (PJK) is a common imaging finding after long-level fusion, and proximal junctional failure (PJF) is an aggravated form of the progressive disease spectrum of PJK. This includes vertebral fracture of upper instrumented vertebra (UIV) or UIV+1, instability between UIV and UIV+1, neurological deterioration requiring surgery. Many studies have reported on PJK and PJF after long segment instrumentation for adult spinal deformity (ASD). In particular, for spine deformity surgeons, risk factors and prevention strategies of PJK and PJF are very important to minimize reoperation. Therefore, this review aims to help reduce the occurrence of PJK and PJF by updating the latest contents of PJK and PJF by 2023, focusing on the risk factors and prevention strategies of PJK and PJF. We conducted a search on multiple database for articles published until February 2023 using the search keywords "proximal junctional kyphosis," "proximal junctional failure," "proximal junctional disease," and "adult spinal deformity." Finally, 103 papers were included in this study. Numerous factors have been suggested as potential risks for the development of PJK and PJF, including a high body mass index, inadequate postoperative sagittal balance and overcorrection, advanced age, pelvic instrumentation, and osteoporosis. Recently, with the increasing elderly population, sarcopenia has been emphasized. The quality and quantity of muscle in the surgical site have been suggested as new risk factor. Therefore, spine surgeon should understand the pathophysiology of PJK and PJF, as well as individual risk factors, in order to develop appropriate prevention strategies for each patient.
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Affiliation(s)
- Byung-Jou Lee
- Department of Neurosurgery, Inje University Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea
| | - Sung Soo Bae
- Department of Neurosurgery, Kyung Hee University Hospital at Gangdong, Kyung Hee University College of Medicine, Seoul, Korea
| | - Ho Young Choi
- Department of Neurosurgery, Kyung Hee University Hospital at Gangdong, Kyung Hee University College of Medicine, Seoul, Korea
| | - Jin Hoon Park
- Department of Neurosurgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Seung-Jae Hyun
- Department of Neurosurgery, Spine Center, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Dae Jean Jo
- Department of Neurosurgery, Kyung Hee University Hospital at Gangdong, Kyung Hee University College of Medicine, Seoul, Korea
| | - Yongjae Cho
- Department of Neurosurgery, Ewha Womans University School of Medicine, Seoul, Korea
| | - Korean Spinal Deformity Society (KSDS)
- Department of Neurosurgery, Inje University Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea
- Department of Neurosurgery, Kyung Hee University Hospital at Gangdong, Kyung Hee University College of Medicine, Seoul, Korea
- Department of Neurosurgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
- Department of Neurosurgery, Spine Center, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
- Department of Neurosurgery, Ewha Womans University School of Medicine, Seoul, Korea
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13
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Ordaz A, Anderson B, Zlomislic V, Allen RT, Garfin SR, Schuepbach R, Farshad M, Schenk S, Ward SR, Shahidi B. Paraspinal muscle gene expression across different aetiologies in individuals undergoing surgery for lumbar spine pathology. 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 2023; 32:1123-1131. [PMID: 36740606 PMCID: PMC10448537 DOI: 10.1007/s00586-023-07543-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 12/12/2022] [Accepted: 01/13/2023] [Indexed: 02/07/2023]
Abstract
PURPOSE The purpose of this study was to understand potential baseline transcriptional expression differences in paraspinal skeletal muscle from patients with different underlying lumbar pathologies by comparing multifidus gene expression profiles across individuals with either disc herniation, facet arthropathy, or degenerative spondylolisthesis. METHODS Multifidus biopsies were obtained from patients (n = 44) undergoing lumbar surgery for either disc herniation, facet arthropathy, or degenerative spondylolisthesis. Diagnostic categories were based on magnetic resonance images, radiology reports, and intraoperative reports. Gene expression for 42 genes was analysed using qPCR. A one-way analysis of variance was performed for each gene to determine differences in expression across diagnostic groups. Corrections for multiple comparisons across genes (Benjamini-Hochberg) and for between-group post hoc comparisons (Sidak) were applied. RESULTS Adipogenic gene (ADIPOQ) expression was higher in the disc herniation group when compared to the facet arthropathy group (p = 0.032). Adipogenic gene (PPARD) expression was higher in the degenerative spondylolisthesis group when compared to the disc herniation group (p = 0.013), although absolute gene expression levels for all groups was low. Fibrogenic gene (COL3A1) had significantly higher expression in the disc herniation group and facet arthropathy group when compared to the degenerative spondylolisthesis group (p < 0.001 and p = 0.038, respectively). When adjusted for multiple comparisons, only COL3A1 remained significant (p = 0.012). CONCLUSION Individuals with disc herniation and facet arthropathy demonstrate higher COL3A1 gene expression compared to those with degenerative spondylolisthesis. Future research is required to further understand the biological relevance of these transcriptional differences.
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Affiliation(s)
- Angel Ordaz
- Department of Orthopaedic Surgery, University of California San Diego, San Diego, CA, USA.
| | - Brad Anderson
- Department of Orthopaedic Surgery, University of California San Diego, San Diego, CA, USA
| | - Vinko Zlomislic
- Department of Orthopaedic Surgery, University of California San Diego, San Diego, CA, USA
| | - R Todd Allen
- Department of Orthopaedic Surgery, University of California San Diego, San Diego, CA, USA
| | - Steven R Garfin
- Department of Orthopaedic Surgery, University of California San Diego, San Diego, CA, USA
| | - Regula Schuepbach
- Department of Orthopaedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
| | - Mazda Farshad
- Department of Orthopaedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
| | - Simon Schenk
- Department of Orthopaedic Surgery, University of California San Diego, San Diego, CA, USA
| | - Samuel R Ward
- Department of Orthopaedic Surgery, University of California San Diego, San Diego, CA, USA
| | - Bahar Shahidi
- Department of Orthopaedic Surgery, University of California San Diego, San Diego, CA, USA
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14
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Lazaro B, Sardi JP, Smith JS, Kelly MP, Yanik EL, Dial B, Hills J, Gupta MC, Baldus CR, Yen CP, Lafage V, Ames CP, Bess S, Schwab F, Shaffrey CI, Bridwell KH. Proximal junctional failure in primary thoracolumbar fusion/fixation to the sacrum/pelvis for adult symptomatic lumbar scoliosis: long-term follow-up of a prospective multicenter cohort of 160 patients. J Neurosurg Spine 2023; 38:319-330. [PMID: 36334285 DOI: 10.3171/2022.9.spine22549] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 09/30/2022] [Indexed: 12/04/2022]
Abstract
OBJECTIVE Proximal junctional failure (PJF) is a severe form of proximal junctional kyphosis. Previous reports on PJF have been limited by heterogeneous cohorts and relatively short follow-ups. The authors' objectives herein were to identify risk factors for PJF and to assess its long-term incidence and revision rates in a homogeneous cohort. METHODS The authors reviewed data from the Adult Symptomatic Lumbar Scoliosis 1 trial (ASLS-1), a National Institutes of Health-sponsored prospective multicenter study. Inclusion criteria were an age ≥ 40 years, ASLS (Cobb angle ≥ 30° and Oswestry Disability Index [ODI] ≥ 20 or Scoliosis Research Society revised 22-item questionnaire [SRS-22r] score ≤ 4.0 in pain, function, or self-image domains), and primary thoracolumbar fusion/fixation to the sacrum/pelvis of ≥ 7 levels. PJF was defined as a postoperative proximal junctional angle (PJA) change > 20°, fracture of the uppermost instrumented vertebra (UIV) or UIV+1 with > 20% vertebral height loss, spondylolisthesis of UIV/UIV+1 > 3 mm, or UIV screw dislodgment. RESULTS One hundred sixty patients (141 women) were included in this analysis and had a median age of 62 years and a mean follow-up of 4.3 years (range 0.1-6.1 years). Forty-six patients (28.8%) had PJF at a median of 0.92 years (IQR 0.14, 1.23 years) following surgery. Based on Kaplan-Meier analyses, PJF rates at 1, 2, 3, and 4 years were 14.4%, 21.9%, 25.9%, and 27.4%, respectively. On univariate analysis, PJF was associated with greater age (p = 0.0316), greater body mass index (BMI; p = 0.0319), worse baseline patient-reported outcome measures (PROMs; ODI, SRS-22r, and SF-12 Physical Component Summary [PCS]; all p < 0.04), the use of posterior column osteotomies (PCOs; p = 0.0039), and greater postoperative thoracic kyphosis (TK; p = 0.0031) and PJA (p < 0.001). The use of UIV hooks was protective against PJF (p = 0.0340). On regression analysis (without postoperative measures), PJF was associated with greater BMI (HR 1.077, 95% CI 1.007-1.153, p = 0.0317), lower preoperative PJA (HR 0.607, 95% CI 0.407-0.906, p = 0.0146), and greater preoperative TK (HR 1.362, 95% CI 1.082-1.715, p = 0.0085). Patients with PJF had worse PROMs at the last follow-up (ODI, SRS-22r subscore and self-image, and SF-12 PCS; p < 0.04). Sixteen PJF patients (34.8%) underwent revision, and PJF recurred in 3 (18.8%). CONCLUSIONS Among 160 primary ASLS patients with a median age of 62 years and predominant coronal deformity, the PJF rate was 28.8% at a mean 4.3-year follow-up, with a revision rate of 34.8%. On univariate analysis, PJF was associated with a greater age and BMI, worse baseline PROMs, the use of PCOs, and greater postoperative TK and PJA. The use of UIV hooks was protective against PJF. On multivariate analysis (without postoperative measures), a higher risk of PJF was associated with greater BMI and preoperative TK and lower preoperative PJA.
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Affiliation(s)
- Bruno Lazaro
- 1Department of Neurosurgery, University of Virginia, Charlottesville, Virginia
| | - Juan Pablo Sardi
- 1Department of Neurosurgery, University of Virginia, Charlottesville, Virginia
| | - Justin S Smith
- 1Department of Neurosurgery, University of Virginia, Charlottesville, Virginia
| | - Michael P Kelly
- 2Department of Orthopedic Surgery, Washington University School of Medicine, St. Louis, Missouri
| | - Elizabeth L Yanik
- 2Department of Orthopedic Surgery, Washington University School of Medicine, St. Louis, Missouri
| | - Brian Dial
- 2Department of Orthopedic Surgery, Washington University School of Medicine, St. Louis, Missouri
| | - Jeffrey Hills
- 2Department of Orthopedic Surgery, Washington University School of Medicine, St. Louis, Missouri
| | - Munish C Gupta
- 2Department of Orthopedic Surgery, Washington University School of Medicine, St. Louis, Missouri
| | - Christine R Baldus
- 2Department of Orthopedic Surgery, Washington University School of Medicine, St. Louis, Missouri
| | - Chun Po Yen
- 1Department of Neurosurgery, University of Virginia, Charlottesville, Virginia
| | | | - Christopher P Ames
- 4Department of Neurosurgery, University of California, San Francisco, California
| | - Shay Bess
- 5Denver International Spine Center, Presbyterian St. Luke's/Rocky Mountain Hospital for Children, Denver, Colorado; and
| | | | - Christopher I Shaffrey
- and Departments of6Neurosurgery and
- 7Orthopedic Surgery, Duke University, Durham, North Carolina
| | - Keith H Bridwell
- 2Department of Orthopedic Surgery, Washington University School of Medicine, St. Louis, Missouri
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15
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Yang F, Liu Z, Zhu Y, Zhu Q, Zhang B. Imaging of muscle and adipose tissue in the spine: A narrative review. Medicine (Baltimore) 2022; 101:e32051. [PMID: 36626484 PMCID: PMC9750571 DOI: 10.1097/md.0000000000032051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Interpretation of the morphology and characteristics of soft tissues, such as paravertebral muscles and fat, has always been a "relative blind spot" in the spine. The imaging features of the non-bony structures of the spine have been studied and reinterpreted, and changes in the non-bony structure are associated with spinal disease. Soft tissue parameters such as, the "paraspinal muscle cross-sectional area," "subcutaneous fat thickness," and the "paraspinal muscle fat infiltration rate" on computed tomography, magnetic resonance imaging and other imaging techniques are reproducible in the diagnosis, treatment and prognosis of spinal disorders and have the potential for clinical application. In addition, focus on the association between sarcopenia and spinal epidural lipomatosis with spinal disorders is increasing. Currently, there is no summary of studies on fat and muscle in the spinal region. Given this, within the context of recent research trends, this article provides a synthesis of research on adipose and muscle tissue in the spine, discusses advances in the study of the imaging manifestations of these structures in spinal disorders, and expands the perspectives.
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Affiliation(s)
- Fan Yang
- Department of Orthopaedics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Zhengang Liu
- Department of Orthopaedics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Yuhang Zhu
- Department of Orthopaedics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Qingsan Zhu
- Department of Orthopaedics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Boyin Zhang
- Department of Orthopaedics, China-Japan Union Hospital of Jilin University, Changchun, China
- * Correspondence: Boyin Zhang, Department of Orthopaedics, China-Japan Union Hospital of Jilin University, Changchun 130033, China (e-mail: )
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16
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Song J, Araghi K, Dupont MM, Shahi P, Bovonratwet P, Shinn D, Dalal SS, Melissaridou D, Virk SS, Iyer S, Dowdell JE, Sheha ED, Qureshi SA. Association between muscle health and patient-reported outcomes after lumbar microdiscectomy: early results. Spine J 2022; 22:1677-1686. [PMID: 35671940 DOI: 10.1016/j.spinee.2022.05.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/05/2022] [Accepted: 05/26/2022] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT Poor muscle health has been implicated as a source of back pain among patients with lumbar spine pathology. Recently, a novel magnetic resonance imaging (MRI)-based lumbar muscle health grade was shown to correlate with health-related quality of life scores. However, the impact of muscle health on postoperative functional outcomes following spine surgery remains to be investigated. PURPOSE To determine whether muscle health grade measured by preoperative psoas and paralumbar muscle cross-sectional areas impact the achievement of minimal clinically important difference (MCID) following lumbar microdiscectomy. STUDY DESIGN/SETTING Retrospective cohort study. PATIENT SAMPLE Consecutive patients who underwent 1-level lumbar microdiscectomy in a single institution between 2017 and 2021. OUTCOME MEASURES Rate of MCID achievement, time to MCID achievement, PROMs including Oswestry Disability Index (ODI), visual analog scale for back pain (VAS back), VAS leg, Short Form 12 Physical Component Summary (SF-12 PCS), SF-12 Mental Component Summary (SF-12 MCS), and Patient Reported Outcomes Measurement Information System Physical Function (PROMIS PF). METHODS Two previously validated methods for muscle health grading were applied. Axial T2 MRI were analyzed for muscle measurements. The psoas-based method utilized the normalized total psoas area (NTPA), which is the psoas cross-sectional area divided by the square of patient height (mm2/m2). Patients were divided into low and high NTPA groups based on sex-specific lowest quartile NTPA thresholds. The paralumbar-based method incorporated the paralumbar cross-sectional area normalized by body mass index (PL-CSA/BMI) and Goutallier classification. Score of 1 was added for either PL-CSA/BMI >130 or Goutallier class of ≤2. "Good" muscle health was defined as score of 2, and "poor" muscle health was defined as score of 0 to 1. Prospectively collected PROMs were analyzed at 2-week, 6-week, 3-month, 6-month, 1-year, and 2-year postoperative timepoints. The rate of and time to MCID achievement were compared among the cohorts. Bivariate analyses were performed to assess for correlations between psoas/paralumbar cross-sectional areas and change in PROM scores from baseline. RESULTS The total cohort included 163 patients with minimum follow-up of 6 months and mean follow-up of 16.5 months. 40 patients (24.5%) were categorized into the low NTPA group, and 55 patients (33.7%) were categorized into the poor paralumbar muscle group. Low NTPA was associated with older age, lower BMI, and greater frequencies of Charlson Comorbidity Index (CCI) ≥1. Poor paralumbar muscle health was associated with older age, female sex, higher BMI, and CCI ≥1. There were no differences in rates of MCID achievement for any PROMs between low versus high NTPA groups or between poor versus good paralumbar groups. Low NTPA was associated with longer time to MCID achievement for ODI, VAS back, VAS leg, and SF-12 MCS. Poor paralumbar muscle health was associated with longer time to MCID achievement for VAS back, VAS leg, and SF-12 PCS. NTPA negatively correlated with change in VAS back (6-week, 12-week) and VAS leg (6-month). PL-CSA/BMI positively correlated with change in PROMIS-PF at 3 months follow-up. CONCLUSIONS Among patients undergoing lumbar microdiscectomy, patients with worse muscle health grades achieved MCID at similar rates but required longer time to achieve MCID. Lower NTPA was weakly correlated with larger improvements in pain scores. PL-CSA/BMI positively correlated with change in PROMIS-PF. Our findings suggest that with regards to functional outcomes, patients with worse muscle health may take longer to recuperate postoperatively compared to those with better muscle health.
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Affiliation(s)
- Junho Song
- Hospital for Special Surgery, 535 East 70th St, New York, NY 10021, USA
| | - Kasra Araghi
- Hospital for Special Surgery, 535 East 70th St, New York, NY 10021, USA
| | - Marcel M Dupont
- Hospital for Special Surgery, 535 East 70th St, New York, NY 10021, USA
| | - Pratyush Shahi
- Hospital for Special Surgery, 535 East 70th St, New York, NY 10021, USA
| | | | - Daniel Shinn
- Hospital for Special Surgery, 535 East 70th St, New York, NY 10021, USA
| | - Sidhant S Dalal
- Hospital for Special Surgery, 535 East 70th St, New York, NY 10021, USA
| | | | - Sohrab S Virk
- Northwell Health Long Island Jewish Medical Center, 270-05 76th Ave, Queens, NY 10040, USA
| | - Sravisht Iyer
- Hospital for Special Surgery, 535 East 70th St, New York, NY 10021, USA
| | - James E Dowdell
- Hospital for Special Surgery, 535 East 70th St, New York, NY 10021, USA
| | - Evan D Sheha
- Hospital for Special Surgery, 535 East 70th St, New York, NY 10021, USA
| | - Sheeraz A Qureshi
- Hospital for Special Surgery, 535 East 70th St, New York, NY 10021, USA.
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17
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Huang W, Cai XH, Li YR, Xu F, Jiang XH, Wang D, Tu M. The association between paraspinal muscle degeneration and osteoporotic vertebral compression fracture severity in postmenopausal women. J Back Musculoskelet Rehabil 2022; 36:323-329. [PMID: 36155499 PMCID: PMC10041424 DOI: 10.3233/bmr-220059] [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] [Indexed: 02/04/2023]
Abstract
BACKGROUND According to reports in the literature, osteoporotic vertebral compression fracture (OVCF) is associated with paraspinal muscle degeneration; however, the association between the severity of OVCF and paraspinal muscle degeneration is not clear. OBJECTIVE The purpose of this study was to investigate the association between paraspinal muscle degeneration and OVCF severity in postmenopausal women. METHODS Three hundred and seventy-six MRI images from 47 patients were collected and analyzed. Sagittal and axial coronal T2-weighted images were used to measure the fractured vertebra sagittal cross-sectional area (FSCSA), the adjacent normal vertebral body sagittal cross-sectional area (NSCSA), paraspinal muscle cross-sectional area (CSA), and the fat cross-sectional area (FCSA). The ratio of fractured vertebra compressed sagittal cross-sectional area (RCSA) and fatty infiltration ratio (FIR) was subsequently calculated. The formulas for RCSA and FIR calculations are as follows: RCSA = (NSCSA-FSCSA)/NSCSA; FIR = FCSA/CSA. RCSA and FIR represent the severity of OVCF and paraspinal muscle degeneration, respectively. RESULTS The correlation between paraspinal muscle degeneration and OVCF severity was analyzed using the Pearson correlation, and multiple regression analysis was performed to explore related risk factors. OVCF severity was closely associated with paraspinal muscle degeneration (L3/4 FIR r= 0.704, P< 0.05; L4/5 FIR r= 0.578, P< 0.05; L5/S1 FIR r= 0.581, P< 0.05). Multiple regression analysis demonstrated that the risk factor for OVCF severity was L3/4 FIR (β= 0.421, P= 0.033). CONCLUSION OVCF severity was associated with the FIR of paraspinal muscles, and L3/4 FIR was a predictive factor for OVCF severity in postmenopausal women.
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Affiliation(s)
- Wei Huang
- Hubei University of Chinese Medicine, Wuhan, China.,Department of Spine Surgery, Jingmen No. 2 People's Hospital, Jingmen, Wuhan, China.,Department of Orthopedics, PLA Middle Military Command General Hospital, Wuhan, China
| | - Xian-Hua Cai
- Hubei University of Chinese Medicine, Wuhan, China.,Department of Orthopedics, PLA Middle Military Command General Hospital, Wuhan, China
| | - Yi-Rong Li
- Department of Spine Surgery, Jingmen No. 2 People's Hospital, Jingmen, Wuhan, China
| | - Feng Xu
- Department of Orthopedics, PLA Middle Military Command General Hospital, Wuhan, China
| | - Xin-Hao Jiang
- Department of Spine Surgery, Jingmen No. 2 People's Hospital, Jingmen, Wuhan, China
| | - Dan Wang
- Department of Spine Surgery, Jingmen No. 2 People's Hospital, Jingmen, Wuhan, China
| | - Min Tu
- Department of Spine Surgery, Jingmen No. 2 People's Hospital, Jingmen, Wuhan, China
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18
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Letter to the Editor Re: "State of the art: proximal junctional kyphosis-diagnosis, management and prevention". Spine Deform 2022; 10:969-970. [PMID: 34562264 DOI: 10.1007/s43390-021-00420-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 09/18/2021] [Indexed: 10/20/2022]
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19
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Sardar ZM, Kim Y, Lafage V, Rand F, Lenke L, Klineberg E. Letter to the Editor for state of the art: proximal junctional kyphosis; diagnosis, management and prevention. Spine Deform 2022; 10:971-972. [PMID: 35438390 DOI: 10.1007/s43390-022-00513-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 04/09/2022] [Indexed: 11/29/2022]
Affiliation(s)
- Zeeshan M Sardar
- Spine and Scoliosis Surgery, College of Physicians and Surgeons, Columbia University, NewYork-Presbyterian/The Allen Hospital/Och Spine Hospital, 5141 Broadway, 3FW, New York, NY, 10034, USA.
| | | | | | - Frank Rand
- New England Baptist Hospital, Boston, MA, USA
| | - Lawrence Lenke
- Spine and Scoliosis Surgery, College of Physicians and Surgeons, Columbia University, NewYork-Presbyterian/The Allen Hospital/Och Spine Hospital, 5141 Broadway, 3FW, New York, NY, 10034, USA
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20
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Anderson B, Ordaz A, Zlomislic V, Allen RT, Garfin SR, Schuepbach R, Farshad M, Schenk S, Ward SR, Shahidi B. Paraspinal Muscle Health is Related to Fibrogenic, Adipogenic, and Myogenic Gene Expression in Patients with Lumbar Spine Pathology. BMC Musculoskelet Disord 2022; 23:608. [PMID: 35739523 PMCID: PMC9229083 DOI: 10.1186/s12891-022-05572-7] [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: 03/18/2022] [Accepted: 06/14/2022] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Lumbar spine pathology is a common feature of lower back and/or lower extremity pain and is associated with observable degenerative changes in the lumbar paraspinal muscles that are associated with poor clinical prognosis. Despite the commonly observed phenotype of muscle degeneration in this patient population, its underlying molecular mechanisms are not well understood. The aim of this study was to investigate the relationships between groups of genes within the atrophic, myogenic, fibrogenic, adipogenic, and inflammatory pathways and multifidus muscle health in individuals undergoing surgery for lumbar spine pathology. METHODS Multifidus muscle biopsies were obtained from patients (n = 59) undergoing surgery for lumbar spine pathology to analyze 42 genes from relevant adipogenic/metabolic, atrophic, fibrogenic, inflammatory, and myogenic gene pathways using quantitative polymerase chain reaction. Multifidus muscle morphology was examined preoperatively in these patients at the level and side of biopsy using T2-weighted magnetic resonance imaging to determine whole muscle compartment area, lean muscle area, fat cross-sectional areas, and proportion of fat within the muscle compartment. These measures were used to investigate the relationships between gene expression patterns and muscle size and quality. RESULTS Relationships between gene expression and imaging revealed significant associations between decreased expression of adipogenic/metabolic gene (PPARD), increased expression of fibrogenic gene (COL3A1), and lower fat fraction on MRI (r = -0.346, p = 0.018, and r = 0.386, p = 0.047 respectively). Decreased expression of myogenic gene (mTOR) was related to greater lean muscle cross-sectional area (r = 0.388, p = 0.045). CONCLUSION Fibrogenic and adipogenic/metabolic genes were related to pre-operative muscle quality, and myogenic genes were related to pre-operative muscle size. These findings provide insight into molecular pathways associated with muscle health in the presence of lumbar spine pathology, establishing a foundation for future research that addresses how these changes impact outcomes in this patient population.
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Affiliation(s)
- Brad Anderson
- Department of Orthopaedic Surgery, University of California San Diego, 350 Dickinson Street, Suite 121, Mail Code 8894, San Diego, CA, 92103-8894, USA
| | - Angel Ordaz
- Department of Orthopaedic Surgery, University of California San Diego, 350 Dickinson Street, Suite 121, Mail Code 8894, San Diego, CA, 92103-8894, USA.
| | - Vinko Zlomislic
- Department of Orthopaedic Surgery, University of California San Diego, 350 Dickinson Street, Suite 121, Mail Code 8894, San Diego, CA, 92103-8894, USA
| | - R Todd Allen
- Department of Orthopaedic Surgery, University of California San Diego, 350 Dickinson Street, Suite 121, Mail Code 8894, San Diego, CA, 92103-8894, USA
| | - Steven R Garfin
- Department of Orthopaedic Surgery, University of California San Diego, 350 Dickinson Street, Suite 121, Mail Code 8894, San Diego, CA, 92103-8894, USA
| | - Regula Schuepbach
- Department of Orthopaedics, Balgrist University Hospital, University of Zurich, Forchstrasse 340, 8008, Zurich, Switzerland
| | - Mazda Farshad
- Department of Orthopaedics, Balgrist University Hospital, University of Zurich, Forchstrasse 340, 8008, Zurich, Switzerland
| | - Simon Schenk
- Department of Orthopaedic Surgery, University of California San Diego, 350 Dickinson Street, Suite 121, Mail Code 8894, San Diego, CA, 92103-8894, USA
| | - Samuel R Ward
- Department of Orthopaedic Surgery, University of California San Diego, 350 Dickinson Street, Suite 121, Mail Code 8894, San Diego, CA, 92103-8894, USA
| | - Bahar Shahidi
- Department of Orthopaedic Surgery, University of California San Diego, 350 Dickinson Street, Suite 121, Mail Code 8894, San Diego, CA, 92103-8894, USA
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21
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Han G, Zou D, Liu Z, Zhang B, Gong C, Zhou S, Li W, Sun Z, Li W. Fat infiltration of paraspinal muscles as an independent risk for bone nonunion after posterior lumbar interbody fusion. BMC Musculoskelet Disord 2022; 23:232. [PMID: 35264133 PMCID: PMC8908625 DOI: 10.1186/s12891-022-05178-z] [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: 05/24/2021] [Accepted: 03/02/2022] [Indexed: 12/15/2022] Open
Abstract
Background The prognosis value of paraspinal muscle degeneration on clinical outcomes has been revealed. However no study has investigated the effect of the fat infiltration (FI) of paraspinal muscles on bone nonunion after posterior lumbar interbody fusion (PLIF). Methods Three hundred fifty-one patients undergoing PLIF for lumbar spinal stenosis with 1-year follow-up were retrospectively identified. Patients were categorized into bone union (n = 301) and bone nonunion (n = 50) groups based on dynamic X-ray at 1-year follow-up. The relative total cross-sectional area (rTCSA) and FI of multifidus (MF) and erector spinae (ES), and the relative functional CSA (rFCSA) of psoas major (PS) were measured on preoperative magnetic resonance imaging. Results The nonunion group had a significantly higher MF FI and a higher ES FI and a smaller MF rTCSA than the union group (p = 0.001, 0.038, 0.026, respectively). Binary logistic regression revealed that MF FI (p = 0.029, odds ratio [OR] = 1.04), lumbosacral fusion (p = 0.026, OR = 2193) and length of fusion (p = 0.001, OR = 1.99) were independent factors of bone nonunion. In subgroup analysis, in one or two-level fusion group, the patients with nonunion had a higher MF FI and a higher ES FI than those of the patients with union (all p < 0.05). Similarly, in lumbosacral fusion group, the patients with nonunion had a higher MF FI and a higher ES FI than those of the patients with union (all p < 0.05). The logistic regressions showed that MF FI remained an independent factor of bone nonunion both in the patients with one or two-level fusion (p = 0.003, OR = 1.074) and in the patients with lumbosacral fusion (p = 0.006, OR = 1.073). Conclusions Higher fatty degeneration was strongly associated with bone nonunion after PLIF. Surgeons should pay attention to the FI of paraspinal muscles when performing posterior surgery for patients, especially those who need short-segment fusion or to extend fusion to S1. Supplementary Information The online version contains supplementary material available at 10.1186/s12891-022-05178-z.
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Affiliation(s)
- Gengyu Han
- Department of Orthopaedics, Peking University Third Hospital, No. 49 NorthGarden Road, Haidian District, Beijing, 100191, China.,Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing, China.,Beijing Key Laboratory of Spinal Disease Research, Beijing, China
| | - Da Zou
- Department of Orthopaedics, Peking University Third Hospital, No. 49 NorthGarden Road, Haidian District, Beijing, 100191, China.,Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing, China.,Beijing Key Laboratory of Spinal Disease Research, Beijing, China
| | - Zexiang Liu
- Department of Orthopaedics, Peking University Third Hospital, No. 49 NorthGarden Road, Haidian District, Beijing, 100191, China
| | - Bo Zhang
- Department of Orthopaedics, Peking University Third Hospital, No. 49 NorthGarden Road, Haidian District, Beijing, 100191, China
| | - Chunjie Gong
- Department of Orthopaedics, Peking University Third Hospital, No. 49 NorthGarden Road, Haidian District, Beijing, 100191, China
| | - Siyu Zhou
- Department of Orthopaedics, Peking University Third Hospital, No. 49 NorthGarden Road, Haidian District, Beijing, 100191, China.,Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing, China.,Beijing Key Laboratory of Spinal Disease Research, Beijing, China
| | - Wei Li
- Department of Orthopaedics, Peking University Third Hospital, No. 49 NorthGarden Road, Haidian District, Beijing, 100191, China.,Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing, China.,Beijing Key Laboratory of Spinal Disease Research, Beijing, China
| | - Zhuoran Sun
- Department of Orthopaedics, Peking University Third Hospital, No. 49 NorthGarden Road, Haidian District, Beijing, 100191, China.,Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing, China.,Beijing Key Laboratory of Spinal Disease Research, Beijing, China
| | - Weishi Li
- Department of Orthopaedics, Peking University Third Hospital, No. 49 NorthGarden Road, Haidian District, Beijing, 100191, China. .,Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing, China. .,Beijing Key Laboratory of Spinal Disease Research, Beijing, China.
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22
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Du X, Jiang G, Zhu Y, Luo W, Ou Y. A predictive scoring system for proximal junctional kyphosis after posterior internal fixation in elderly patients with chronic osteoporotic vertebral fracture: A single-center diagnostic study. Front Endocrinol (Lausanne) 2022; 13:923778. [PMID: 35937792 PMCID: PMC9354091 DOI: 10.3389/fendo.2022.923778] [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: 04/19/2022] [Accepted: 06/30/2022] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVE To establish a predictive scoring system for proximal junctional kyphosis (PJK) after posterior internal fixation in elderly patients with chronic osteoporotic vertebral fracture (COVF). MATERIALS AND METHODS The medical records of 88 patients who were diagnosed with COVF and underwent posterior internal fixation in our hospital from January 2013 to December 2017 were retrospectively analyzed. The included patients were divided into two groups according to whether they suffered PJK after surgery, namely, the PJK group (25 cases) and non-PJK group (63 cases). The following clinical characteristics were recorded and analyzed: age, gender, body mass index (BMI), bone mineral density (BMD), smoking history, fracture segment, proximal junction angle, sagittal vertebral axis, pelvic incidence (PI)-lumbar lordosis (LL), pelvic tilt (PT), sacral slope (SS), posterior ligamentous complex (PLC) injury, upper instrumented vertebra, lower instrumented vertebra, and the number of fixed segments. The prevalence of these clinical characteristics in the PJK group was evaluated, and the scoring system was established using logistic regression analysis. The performance of the scoring system was also prospectively validated. RESULTS The predictive scoring system was established based on five clinical characteristics confirmed as significant predictors of PJK, namely, age > 70 years, BMI > 28 kg/m2, BMD < -3.5 SD, preoperative PI-LL > 20°, and PLC injury. PJK showed a significantly higher score than non-PJK (7.80 points vs. 2.83 points, t=9.556, P<0.001), and the optimal cutoff value for the scoring system was 5 points. The sensitivity and specificity of the scoring system for predicting postoperative PJK were 80.00% and 88.89%, respectively, in the derivation set and 75.00% and 80.00% in the validation set. CONCLUSION The predictive scoring system was confirmed with satisfactory sensitivity and specificity in predicting PJK after posterior internal fixation in elderly COVF patients. The risk of postoperative PJK in patients with a score of 6-11 is high, while the score of 0-5 is low.
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Affiliation(s)
- Xing Du
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, China
| | - Guanyin Jiang
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, China
| | - Yong Zhu
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, China
| | - Wei Luo
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, China
| | - Yunsheng Ou
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, China
- *Correspondence: Yunsheng Ou,
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23
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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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24
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Geng J, Wang L, Li Q, Huang P, Liu Y, Blake GM, Tian W, Cheng X. The Association of Lumbar Disc Herniation with Lumbar Volumetric Bone Mineral Density in a Cross-Sectional Chinese Study. Diagnostics (Basel) 2021; 11:diagnostics11060938. [PMID: 34073839 PMCID: PMC8225064 DOI: 10.3390/diagnostics11060938] [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: 04/14/2021] [Revised: 05/03/2021] [Accepted: 05/19/2021] [Indexed: 12/12/2022] Open
Abstract
Little is known about the effect of lumbar intervertebral disc herniation (LDH) on lumbar bone mineral density (BMD), and few previous studies have used quantitative computed tomography (QCT) to assess whether the staging of LDH correlates with lumbar vertebral trabecular volumetric bone mineral density (Trab.vBMD). To explore the relationship between lumbar Trab.vBMD and LDH, seven hundred and fifty-four healthy participants aged 20–60 years were enrolled in the study from an ongoing study on the degeneration of the spine and knee between June 2014 and 2017. QCT was used to measure L2–4 Trab.vBMD and lumbar spine magnetic resonance images (MRI) were performed to assess the incidence of disc herniation. After 9 exclusions, a total of 322 men and 423 women remained. The men and women were divided into younger (age 20–39 years) and older (age 40–60 years) groups and further into those without LDH, with a single LDH segment, and with ≥2 segments. Covariance analysis was used to adjust for the effects of age, BMI, waistline, and hipline on the relationship between Trab.vBMD and LDH. Forty-one younger men (25.0%) and 59 older men (37.3%) had at least one LDH segment. Amongst the women, the numbers were 46 (22.5%) and 80 (36.4%), respectively. Although there were differences in the characteristics data between men and women, the difference in Trab.vBMD between those without LDH and those with single and ≥2 segments was not statistically significant (p > 0.05). These results remained not statistically significant after further adjusting for covariates (p > 0.05). No associations between lumbar disc herniation and vertebral trabecular volumetric bone mineral density were observed in either men or women.
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Affiliation(s)
- Jian Geng
- School of Medical Technology, Shaanxi University of Chinese Medicine, Xianyang 712083, China;
- Department of Radiology, Beijing Jishuitan Hospital, Beijing 100035, China; (L.W.); (Q.L.); (P.H.); (Y.L.)
| | - Ling Wang
- Department of Radiology, Beijing Jishuitan Hospital, Beijing 100035, China; (L.W.); (Q.L.); (P.H.); (Y.L.)
| | - Qing Li
- Department of Radiology, Beijing Jishuitan Hospital, Beijing 100035, China; (L.W.); (Q.L.); (P.H.); (Y.L.)
| | - Pengju Huang
- Department of Radiology, Beijing Jishuitan Hospital, Beijing 100035, China; (L.W.); (Q.L.); (P.H.); (Y.L.)
| | - Yandong Liu
- Department of Radiology, Beijing Jishuitan Hospital, Beijing 100035, China; (L.W.); (Q.L.); (P.H.); (Y.L.)
| | - Glen M. Blake
- Osteoporosis Research Unit, King’s College London, London WC2R 2LS, UK;
| | - Wei Tian
- Department of Spine Surgery, Beijing Jishuitan Hospital, Beijing 100035, China;
| | - Xiaoguang Cheng
- School of Medical Technology, Shaanxi University of Chinese Medicine, Xianyang 712083, China;
- Department of Radiology, Beijing Jishuitan Hospital, Beijing 100035, China; (L.W.); (Q.L.); (P.H.); (Y.L.)
- Correspondence:
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25
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Castillo-Avila RG, González-Castro TB, Tovilla-Zárate CA, Juárez-Rojop IE, López-Narváez ML, Rodríguez-Pérez JM, Pérez-Hernández N. The role of TaqI, ApaI and BsmI polymorphisms of VDR gene in lumbar spine pathologies: 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 2021; 30:2049-2059. [PMID: 34021784 DOI: 10.1007/s00586-021-06872-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 03/27/2021] [Accepted: 05/04/2021] [Indexed: 11/29/2022]
Abstract
PURPOSE The objective of the present meta-analysis was to evaluate the association between TaqI (rs731236), ApaI (rs7975232) and BsmI (rs1544410) polymorphisms of the VDR gene and lumbar spine pathologies such as lumbar disc herniation and lumbar disc degeneration. BACKGROUND VDR gene polymorphisms have been reported to be associated with an increased risk of lumbar spine pathologies. MATERIALS AND METHODS A systematic search was performed up to February 2020 using PubMed, EBSCO and Web of Science databases. We used the keywords and combinations "lumbar disc degeneration," "lumbar disc herniation," "lumbar spine pathologies" and "VDR polymorphism." Subsequently, we performed a meta-analysis with the results of the included studies. RESULTS We found that the TaqI polymorphism was associated with an increased risk of developing lumbar spine pathologies (recessive model OR 1.25, 95% CI 1.01-1.54) and lumbar disc degeneration (allelic model OR 1.26, 95% CI 1.07-1.48; recessive model OR 1.34, 95% CI 1.06-1.69), but not with lumbar disc herniation. Additionally, ApaI was associated with an increased risk of developing lumbar spine pathologies (heterozygous model OR 1.45, 95% CI 1.06-1.98), but not with lumbar disc herniation or lumbar disc degeneration. CONCLUSIONS Our findings indicate that TaqI and ApaI polymorphisms of the VDR gene are important risk factors for developing lumbar spine pathologies. Moreover, the TaqI polymorphism is a risk factor for lumbar disc degeneration.
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Affiliation(s)
- Rosa Giannina Castillo-Avila
- División Académica de Ciencias de la Salud, Universidad Juárez Autónoma de Tabasco, Villahermosa, Tabasco, Mexico
| | - Thelma Beatriz González-Castro
- División Académica Multidisciplinaria de Jalpa de Méndez, Universidad Juárez Autónoma de Tabasco, Carretera estatal libre Villahermosa-Comalcalco km 27 s/n, Ranchería, 86205, Jalpa de Méndez, Tabasco, Mexico.
| | - Carlos Alfonso Tovilla-Zárate
- División Académica Multidisciplinaria de Comalcalco, Universidad Juárez Autónoma de Tabasco, Ranchería Sur, Cuarta Sección, 86650, Comalcalco, Tabasco, Mexico.
| | - Isela Esther Juárez-Rojop
- División Académica de Ciencias de la Salud, Universidad Juárez Autónoma de Tabasco, Villahermosa, Tabasco, Mexico
| | - María Lilia López-Narváez
- Hospital General de Yajalón "Dr. Manuel Velasco Siles", Secretaría de Salud. Yajalón, Yajalón, Chiapas, Mexico
| | | | - Nonanzit Pérez-Hernández
- Departamento de Biología Molecular, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico
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