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Mechanical back pain

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https://www.readbyqxmd.com/read/28343048/protective-effect-of-cddo-ea-against-high-glucose-induced-oxidative-injury-via-the-nrf2-ho-1-pathway
#1
Cun-Xin Zhang, Ting Wang, Jin-Feng Ma, Yang Liu, Zheng-Gang Zhou, De-Chun Wang
BACKGROUND CONTEXT: Intervertebral disc degeneration (IDD) is the main cause of low back pain, and nucleus pulposus (NP) cell apoptosis is an important risk factor of IDD. However, the molecular mechanism of this disease remains unknown. PURPOSE: To assess the potential protective effect of CDDO-ethyl amide (EA) against high-glucose-induced oxidative stress injury in NP cells and to investigate the mechanism of antioxidative effects and apoptotic inhibition. STUDY DESIGN/SETTING: To find new molecule to inhibit intervertebral disc degeneration...
March 22, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28338454/impact-of-preoperative-diagnosis-on-patient-satisfaction-following-lumbar-spine-surgery
#2
Charles H Crawford, Leah Y Carreon, Mohamad Bydon, Anthony L Asher, Steven D Glassman
OBJECTIVE Patient satisfaction is a commonly used metric in the current health care environment. While factors that affect patient satisfaction following spine surgery are complex, the authors of this study hypothesized that specific diagnostic groups of patients are more likely to be satisfied after spine surgery and that this is reflected in patient-reported outcome measures. The purpose of this study was to determine if the preoperative diagnosis-disc herniation, stenosis, spondylolisthesis, adjacent segment degeneration, or mechanical disc collapse-would impact patient satisfaction following surgery...
March 24, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28328574/the-long-term-reliability-of-static-and-dynamic-quantitative-sensory-testing-in-healthy-individuals
#3
Anna Marcuzzi, Paul J Wrigley, Catherine M Dean, Roger Adams, Julia M Hush
Quantitative sensory tests (QST) have been increasingly used to investigate alterations in somatosensory function in a wide range of painful conditions. The interpretation of these findings is based on the assumption that the measures are stable and reproducible. To date, reliability of QST has been investigated for short test-retest intervals. The aim of this study was to investigate the long-term reliability of a multimodal QST assessment in healthy people, with testing conducted on three occasions over 4-months...
March 21, 2017: Pain
https://www.readbyqxmd.com/read/28326397/fracture-of-an-uncemented-tantalum-patellar-component
#4
Nathan L Grimm, Robert A Henderson, Joseph J Kavolus, Patrick D Millikan, Paul F Lachiewicz
A 62-year-old man presented with the acute, atraumatic onset of pain 3 years after uncemented right total knee arthroplasty. He complained of new mechanical locking with the knee held in extension on examination and unable to flex the knee. On the plain radiographs, the patellar component peg was fractured and the plate was dislocated. The knee was immobilized, and revision to a cemented 3-peg component was performed. Fracture of a single-peg, tantalum-backed uncemented patellar component has not been described...
June 2016: Arthroplasty Today
https://www.readbyqxmd.com/read/28323705/etiology-of-adult-onset-stress-fracture-in-the-lumbar-spine
#5
Fumitake Tezuka, Koichi Sairyo, Toshinori Sakai, Akira Dezawa
STUDY DESIGN: This study was a case series. OBJECTIVE: The purpose of this paper was to present a case series of fresh stress fractures (spondylolysis) in the lumbar spines of adult athletes. SUMMARY OF BACKGROUND DATA: Lumbar spondylolysis is a stress fracture of the pars interarticularis, which is generally considered a disease of children or adolescence. There is only 1 case series written in English reporting on adult-onset fresh spondylolysis...
April 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28323240/the-impact-of-continuous-use-of-lumbosacral-orthoses-on-trunk-motor-performance-a-systematic-review-with-meta-analysis
#6
REVIEW
Hiroshi Takasaki, Takahiro Miki
BACKGROUND CONTEXT: The lumbosacral orthosis (LSO) is prescribed by general practitioners for the management of low back pain. It may be speculated that continuous use of the LSO for a prolonged period reduces mechanical loading to the trunk muscle in daily living and results in impairments of the trunk muscle. PURPOSE: To investigate whether the trunk motor performances are impaired by continuous use of the lumbosacral orthosis. STUDY DESIGN/SETTING: Systematic review with meta-analysis...
March 17, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28321270/autophagy-is-a-protective-response-to-the-oxidative-damage-to-endplate-chondrocytes-in-intervertebral-disc-implications-for-the-treatment-of-degenerative-lumbar-disc
#7
Ke Chen, Xiaohua Lv, Wei Li, Fei Yu, Jianjing Lin, Junxuan Ma, Deming Xiao
Low back pain (LBP) is the leading cause of disability in the elderly. Intervertebral disc degeneration (IDD) was considered as the main cause for LBP. Degeneration of cartilaginous endplate was a crucial harmful factor during the initiation and development of IDD. Oxidative stress was implicated in IDD. However, the underlying molecular mechanism for the degeneration of cartilaginous endplate remains elusive. Herein, we found that oxidative stress could induce apoptosis and autophagy in endplate chondrocytes evidenced by western blot analysis, flow cytometry, immunofluorescence staining, GFP-LC3B transfection, and MDC staining...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28320356/association-between-v%C3%AC-o2max-handgrip-strength-and-musculoskeletal-pain-among-construction-and-health-care-workers
#8
Lene Lehmann Moberg, Lars-Kristian Lunde, Markus Koch, Anne Therese Tveter, Kaj Bo Veiersted
BACKGROUND: Construction and health care workers have a high prevalence of musculoskeletal disorders, and they are assumed to have physically demanding jobs. Profession- and gender-specific associations between individual capacity and musculoskeletal pain have not been sufficiently investigated. The main aim of this study was to examine the association between individual capacity (maximal oxygen uptake (V̇O2max) and handgrip strength) and musculoskeletal pain among construction and health care workers...
March 21, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28315267/pharmacological-modulation-of-the-sigma-1-receptor-and-the-treatment-of-pain
#9
Manuel Merlos, Javier Burgueño, Enrique Portillo-Salido, Carlos Ramón Plata-Salamán, José Miguel Vela
There is a critical need for new analgesics acting through new mechanisms of action, which could increase the efficacy with respect to existing therapies and reduce their unwanted effects. Current preclinical evidence supports the modulatory role of sigma-1 receptors (σ1R) in nociception, mainly based on the pain-attenuated phenotype of σ1R knockout mice and on the antinociceptive effect exerted by σ1R antagonists on pains of different etiologies. σ1R is highly expressed in different pain areas of the CNS and the periphery (particularly dorsal root ganglia), and interacts and modulates the functionality of different receptors and ion channels ...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28296753/a-rare-thoracic-intraspinal-schwannoma-in-twin-pregnancy-with-aggravated-clinical-presence-a-case-report-following-care
#10
Ruiqi Chen, Anqi Xiao, Lu Xing, Chao You, Jiagang Liu
INTRODUCTION: This is the first case report about a thoracic intraspinal schwannoma in twin pregnancy with aggressive clinical presentation. CLINICAL PRESENCE AND DIAGNOSES: A 21-year-old woman presented with a 2-month history of back pain and slight lower extremity numbness and weakness, and her symptoms were misdiagnosed as normal reactions to pregnancy until she progressed to complete paralysis and incontinence within 2 weeks. She was then confirmed to have thoracic intraspinal schwannoma through MRI...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28291179/the-influence-of-direct-inoculation-of-propionibacterium-acnes-on-modic-changes-in-the-spine-evidence-from-a-rabbit-model
#11
Zhi Shan, Xuyang Zhang, Shengyun Li, Tianming Yu, Maiwulanjiang Mamuti, Fengdong Zhao
BACKGROUND: Modic changes (inflammatory-like changes visible on magnetic resonance imaging [MRI] scans of a vertebral end plate) are common and are associated with low back pain, but their origin is unclear. To our knowledge, there have been no previous in vivo animal models of Modic changes. We hypothesized that Modic changes may be related to Propionibacterium acnes. METHODS: Ten New Zealand White rabbits were injected percutaneously with 1 mL of P. acnes (1.6 × 10 colony forming units/mL) into the subchondral bone superior to the L4-L5 and L5-L6 discs; 10 other control rabbits received sham injections at L4-L5 and 1 mL of normal saline solution (vehicle) at L5-L6...
March 15, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28288900/the-mechanism-of-back-pain-relief-by-spinal-manipulation-relies-on-decreased-temporal-summation-of-pain
#12
Christopher Randoll, Vincent Gagnon-Normandin, Jessica Tessier, Suzie Bois, Nabi Rustamov, Julie O'Shaughnessy, Martin Descarreaux, Mathieu Piché
The aim of the present study was to determine whether thoracic spinal manipulation (SM) decreases temporal summation of back pain. The study comprised 2 controlled experiments including 16 and 15 healthy participants, respectively. Each study included 6 sessions during which painful or non-painful electrical stimulations were delivered in three conditions: 1) control 2) light mechanical stimulus (MS) or 3) SM. Electrical stimulation was applied on the thoracic spine (T4), in the area where SM and MS were performed...
March 10, 2017: Neuroscience
https://www.readbyqxmd.com/read/28286240/reconceptualising-manual-therapy-skills-in-contemporary-practice
#13
Martin Rabey, Toby Hall, Clair Hebron, Thorvaldur Skuli Palsson, Steffan Wittrup Christensen, Niamh Moloney
With conflicting evidence regarding the effectiveness of manual therapy calls have arisen within some quarters of the physiotherapy profession challenging the continued use of manual skills for assessment and treatment. A reconceptualisation of the importance of manual examination findings is put forward, based upon a contemporary understanding of pain science, rather than considering these skills only in terms of how they should "guide" manual therapy interventions. The place for manual examination findings within complex, multidimensional presentations is considered using vignettes describing the presentations of five people with low back pain...
March 6, 2017: Musculoskelet Sci Pract
https://www.readbyqxmd.com/read/28285075/thermally-triggered-hydrogel-injection-into-bovine-intervertebral-disc-tissue-explants-induces-differentiation-of-mesenchymal-stem-cells-and-restores-mechanical-function
#14
A A Thorpe, G Dougill, L Vickers, N D Reeves, C Sammon, G Cooper, C L Le Maitre
We previously reported a synthetic Laponite® crosslinked pNIPAM-co-DMAc (L-pNIPAM-co-DMAc) hydrogel which promotes differentiation of mesenchymal stem cells (MSCs) to nucleus pulposus (NP) cells without additional growth factors. The clinical success of this hydrogel is dependent on: integration with surrounding tissue; the capacity to restore mechanical function; as well as supporting the viability and differentiation of delivered MSCs. Bovine NP tissue explants were injected with media (control), human MSCs (hMSCs) alone, acellular L-pNIPAM-co-DMAc hydrogel or hMSCs incorporated within the L-pNIPAM-co-DMAc hydrogel and maintained at 5% O2 for 6 weeks...
March 8, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28277866/treatment-for-chronic-low-back-pain-the-focus-should-change-to-multimodal-management-that-reflects-the-underlying-pain-mechanisms
#15
Gerhard Müller-Schwefe, Bart Morlion, Karsten Ahlbeck, Eli Alon, Stefano Coaccioli, Flaminia Coluzzi, Frank Huygen, Wolfgang Jaksch, Eija Kalso, Magdalena Kocot-Kępska, Hans-Georg Kress, Ana Cristina Mangas, Cesar Margarit Ferri, Philippe Mavrocordatos, Andrew Nicolaou, Concepción Pérez Hernández, Joseph Pergolizzi, Michael Schäfer, Patrick Sichère
Chronic low back pain: Chronic pain is the most common cause for people to utilize healthcare resources and has a considerable impact upon patients' lives. The most prevalent chronic pain condition is chronic low back pain (CLBP). CLBP may be nociceptive or neuropathic, or may incorporate both components. The presence of a neuropathic component is associated with more intense pain of longer duration, and a higher prevalence of co-morbidities. However, many physicians' knowledge of chronic pain mechanisms is currently limited and there are no universally accepted treatment guidelines, so the condition is not particularly well managed...
March 22, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28275913/sigma-1-receptor-and-pain
#16
Manuel Merlos, Luz Romero, Daniel Zamanillo, Carlos Plata-Salamán, José Miguel Vela
There is a critical need for new analgesics acting through new mechanisms of action, which could increase the efficacy respect to existing therapies and/or reduce their unwanted effects. Current preclinical evidence supports the modulatory role of the sigma-1 receptor (σ1R) in nociception, mainly based on the pain-attenuated phenotype of σ1R knockout mice and on the antinociceptive effect exerted by σ1R antagonists on pain of different etiology, very consistently in neuropathic pain, but also in nociceptive, inflammatory, and visceral pain...
March 9, 2017: Handbook of Experimental Pharmacology
https://www.readbyqxmd.com/read/28272649/associations-of-objectively-measured-sitting-and-standing-with-low-back-pain-intensity-a-6-month-follow-up-of-construction-and-healthcare-workers
#17
Lars-Kristian Lunde, Markus Koch, Stein Knardahl, Kaj Bo Veiersted
Objectives This study aimed to determine the associations between objectively measured sitting and standing duration and intensity of low-back pain (LBP) among Norwegian construction and healthcare workers. Methods One-hundred and twenty-four workers wore two accelerometers for 3-4 consecutive days, during work and leisure. Minutes of sitting and standing was calculated from accelerometer data. We obtained self-reported LBP intensity (0-3) at the time of objective measurement and after six months. We examined associations with linear mixed models and presented results per 100 minutes...
March 8, 2017: Scandinavian Journal of Work, Environment & Health
https://www.readbyqxmd.com/read/28272118/common-pediatric-pain-disorders-and-their-clinical-associations
#18
Theresa Donnelly, Aneeka Bott, Minh Bui, Shuxiang Goh, Tiina Jaaniste, Cindy Chapman, Matthew Crawford, John L Hopper, David Champion
BACKGROUND: Common childhood pain conditions (non-migraine headache, migraine, recurrent abdominal pain, growing pains, low back pain) and persistent pains are often associated with each other and have significant implications in later life. Emerging evidence suggests additional associations between these pain conditions and restless legs syndrome, iron deficiency, anxiety and depression. The aim of this cross-sectional study in pediatric twin individuals and their siblings was to investigate these associations...
March 7, 2017: Clinical Journal of Pain
https://www.readbyqxmd.com/read/28270193/cutaneous-neurogenic-inflammation-in-the-sensitized-acupoints-induced-by-gastric-mucosal-injury-in-rats
#19
Wei He, Xiao-Yu Wang, Hong Shi, Wan-Zhu Bai, Bin Cheng, Yang-Shuai Su, Xiao-Chun Yu, Xiang-Hong Jing, Bing Zhu
BACKGROUND: In acupuncture practice, the most important step is to confirm the location of a sensitized acupoint which reflects a diagnosis and can be stimulated with a specialized needle to treat the disease. Abnormal symptoms such as hyperalgesia or allodynia at the sensitized acupoints in patients with visceral disorders are considered to be in relation with referred pain and neurogenic inflammation. Yet, limited study has investigated the cutaneous neurochemical changes of the sensitized acuponits...
March 7, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28260291/-andersson-lesion-in-ankylosing-spondylitis-a-clinical-study-of-14-cases
#20
Y H Li, X Y Zhang, Q H Li, D H Zheng, L Dai
Objective: To investigate the clinical characteristics of ankylosing spondylitis (AS) combined Andersson lesion (AL). Methods: The clinical data of patients who were diagnosed as AS combined AL at Sun Yat-sen Memorial Hospital between January 2012 and December 2015 were reviewed retrospectively.SPSS 20.0 software was used for statistical analysis.Data of normal distribution was expressed by x±s (standard deviation) and that of abnormal distribution by median and range. Results: Fourteen patients were enrolled...
February 21, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
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