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https://www.readbyqxmd.com/read/28542101/clinical-impact-of-t1-slope-minus-cervical-lordosis-following-multilevel-posterior-cervical-fusion-surgery-a-minimum-2-year-follow-up-data
#1
Seung-Jae Hyun, Ki-Jeong Kim, Tae-Ahn Jahng, Hyun-Jib Kim
STUDY DESIGN: Retrospective study. OBJECTIVE: To assess the longer term relationship between sagittal alignment of the cervical spine and patient-reported health-related quality-of-life (HRQOL) scores following multilevel posterior cervical fusion, and to explore whether an analog of T1 slope - C2-C7 lordosis ('T1S-CL') impacts on patients' clinical outcomes. SUMMARY OF BACKGROUND DATA: A 6-month follow-up study demonstrated that, similar to the thoracolumbar spine, the severity of disability increases with sagittal malalignment following cervical reconstruction surgery...
May 25, 2017: Spine
https://www.readbyqxmd.com/read/28535552/stem-cell-therapy-for-chronic-pain-management-review-of-uses-advances-and-adverse-effects
#2
Krishnan Chakravarthy, Yian Chen, Cathy He, Paul J Christo
BACKGROUND: This review article outlines the recent advances, uses, and adverse effects of cell-based therapy for chronic pain management. Cell based therapies are gaining increasing ground as novel treatment modalities for a variety of pain pathologies that include, but are not limited to, neuropathic pain and degenerative disc disease. As these treatment modalities become more common practice, we have focused our review to provide pain practitioners and other practicing physicians an understanding of the technology and to summarize key clinical data and existing clinical trials that are being pursued by clinical investigators worldwide...
May 2017: Pain Physician
https://www.readbyqxmd.com/read/28530471/structure-function-relationships-of-temporomandibular-retrodiscal-tissue
#3
M C Coombs, J M Petersen, G J Wright, S H Lu, B J Damon, H Yao
It is estimated that 2% to 4% of the US population will seek treatment for temporomandibular joint (TMJ) symptoms, typically occurring with anterior disc displacement. The temporomandibular retrodiscal tissue (RDT) has been postulated to restrict pathologic disc displacement. To elucidate RDT function, understanding regional RDT biomechanics and ultrastructure is required. No prior biomechanical analysis has determined regional variations in RDT properties or associated biomechanical outcomes with regional variations in collagen and elastin organization...
June 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28523278/chondrocyte-specific-knockout-of-tsc-1-leads-to-congenital-spinal-deformity-in-mice
#4
Cheng Yang, Yuhui Chen, Zhen Li, He Cao, Keming Chen, Pinglin Lai, Bo Yan, Bin Huang, Jiajun Tang, Shicai Fan, Daozhang Cai, Dadi Jin, Xiaochun Bai, Rongping Zhou
Congenital spinal deformity is the most severe clinical orthopedic issue worldwide. Among all the pathological processes of congenital spinal deformity, the imbalance of endochondral ossification is considered to be the most important developmental cause of spinal dysplasia. We established chondrocyte-specific TSC-1 knockout (KO) mice to overactivate the energy metabolic component, mammalian target of rapamycin complex 1 (mTORC1), and measured the spinal development by general, imaging, histological, and Western-blot assessments...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28504961/wnt-%C3%AE-catenin-pathway-in-arrhythmogenic-cardiomyopathy
#5
REVIEW
Alessandra Lorenzon, Martina Calore, Giulia Poloni, Leon J De Windt, Paola Braghetta, Alessandra Rampazzo
Wnt/β-catenin signaling pathway plays essential roles in heart development as well as cardiac tissue homoeostasis in adults. Abnormal regulation of this signaling pathway is linked to a variety of cardiac disease conditions, including hypertrophy, fibrosis, arrhythmias, and infarction. Recent studies on genetically modified cellular and animal models document a crucial role of Wnt/β-catenin signaling in the molecular pathogenesis of arrhythmogenic cardiomyopathy (AC), an inherited disease of intercalated discs, typically characterized by ventricular arrhythmias and progressive substitution of the myocardium with fibrofatty tissue...
April 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28502688/evaluating-outcomes-of-stand-alone-anterior-lumbar-interbody-fusion-a-systematic-review
#6
Gloria Giang, Ralph Mobbs, Steven Phan, Tommy Manh Tran, Kevin Phan
BACKGROUND: Stand-alone anterior lumbar interbody fusion (ALIF) is an effective surgical approach for selected spinal pathologies. It avoids the morbidity and complications associated with instrumented ALIF such as plate fixation and the traditionally used posterior approach. Despite improved disc space visualisation and clearance, the associated posterior instability and increased risk of non-fusion present major challenges to this approach. The integral cage design aims to address these challenges by providing the necessary stabilisation through intracorporeal screws...
May 11, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28500930/micro-computed-tomography-scanning-electron-microscopy-and-energy-x-ray-spectroscopy-studies-of-facet-joint-degeneration-a-comparison-to-clinical-imaging
#7
Felix Goehre, Christopher Ludtka, Melanie Hamperl, Andrea Friedmann, Anja Straube, Thomas Mendel, Andreas Heilmann, Hans Jörg Meisel, Stefan Schwan
Segmental degeneration in the human lumbar spine affects both the intervertebral discs and facet joints. Facet joint degeneration not only affects the cartilage surface, but also alters the cellular properties of the cartilage tissue and the structure of the subchondral bone. The primary focus of this study is the investigation of these microstructural changes that are caused by facet joint degeneration. Microstructural analyses of degenerated facet joint samples, obtained from patients following operative lumbar interbody fusion, have not previously been extensively investigated...
May 1, 2017: Micron: the International Research and Review Journal for Microscopy
https://www.readbyqxmd.com/read/28499438/early-developed-asd-adjacent-segmental-disease-in-patients-after-surgical-treatment-of-the-spine-due-to-cancer-metastases
#8
Grzegorz Guzik
BACKGROUND: The causes of ASD are still relatively unknown. Correlation between clinical status of patients and radiological MRI findings is of primary importance. The radiological classifications proposed by Pfirmann and Oner are most commonly used to assess intradiscal degenerative changes. The aim of the study was to assess the influence of the extension of spine fixation on the risk of developing ASD in a short time after surgery. METHODS: A total of 332 patients with spinal tumors were treated in our hospital between 2010 and 2013...
May 12, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28498326/a-histopathological-scheme-for-the-quantitative-scoring-of-intervertebral-disc-degeneration-and-the-therapeutic-utility-of-adult-mesenchymal-stem-cells-for-intervertebral-disc-regeneration
#9
Cindy C Shu, Margaret M Smith, Susan M Smith, Andrew J Dart, Christopher B Little, James Melrose
The purpose of this study was to develop a quantitative histopathological scoring scheme to evaluate disc degeneration and regeneration using an ovine annular lesion model of experimental disc degeneration. Toluidine blue and Haematoxylin and Eosin (H&E) staining were used to evaluate cellular morphology: (i) disc structure/lesion morphology; (ii) proteoglycan depletion; (iii) cellular morphology; (iv) blood vessel in-growth; (v) cell influx into lesion; and (vi) cystic degeneration/chondroid metaplasia...
May 12, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28480155/update-on-the-notochord-including-its-embryology-molecular-development-and-pathology-a-primer-for-the-clinician
#10
REVIEW
Tushar Ramesh, Sai V Nagula, Gabrielle G Tardieu, Erfanul Saker, Mohammadali Shoja, Marios Loukas, Rod J Oskouian, R Shane Tubbs
The notochord is a rod-like embryological structure, which plays a vital role in the development of the vertebrate. Though embryological, remnants of this structure have been observed in the nucleus pulposus of the intervertebral discs of normal adults. Pathologically, these remnants can give rise to slow-growing and recurrent notochord-derived tumors called chordomas. Using standard search engines, the literature was reviewed regarding the anatomy, embryology, molecular development, and pathology of the human notochord...
April 4, 2017: Curēus
https://www.readbyqxmd.com/read/28467568/-leriche-syndrome
#11
Serdar Demirgan, Abdullah Tolga Şitilci, Sezen Solak, Mehmet Salih Sevdi, Kerem Erkalp, Emin Köse
Leriche syndrome is a disease characterized by thrombotic occlusion in the aorta, frequently in the distal renal artery. Classic symptoms of this syndrome include pain in the lower extremities emerging during activity (claudication), impalpability of femoral pulses, and impotency in male patients. Definitive diagnosis of claudication due to insufficient circulation as well as claudication that is neurogenic in origin, is difficult. Medical history, physical examination, and monitoring methods are important for definitive diagnosis...
January 2017: Aǧrı: Ağrı (Algoloji) Derneği'nin Yayın Organıdır, the Journal of the Turkish Society of Algology
https://www.readbyqxmd.com/read/28456670/there-is-no-increased-risk-of-adjacent-segment-disease-at-the-cervico-thoracic-junction-following-an-anterior-cervical-discectomy-and-fusion-to-c7
#12
Philip K Louie, Steven M Presciutti, Stephanie E Iantorno, Daniel D Bohl, Kevin Shah, Grant D Shifflett, Howard S An
BACKGROUND: Anterior cervical discectomy and fusion (ACDF) is a very common operative intervention for the treatment of cervical spine degenerative disease in those who have failed non-operative measures. However, studies examining long-term follow up on patients who underwent ACDF reveal evidence of radiographic and clinical degenerative disc disease at the levels adjacent to the fusion construct. Consistent with other junctional regions of the spine, the cervicothoracic junction (CTJ) has significant morphological variations...
April 26, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28450684/the-diagnostic-dilemma-of-tumor-induced-osteomalacia-a-retrospective-analysis-of-144-cases
#13
Juan Feng, Yan Jiang, Ou Wang, Mei Li, Xiaoping Xing, Li Huo, Fang Li, Wei Yu, Ding-Rong Zhong, Jin Jin, Yong Liu, Fang Qi, Wei Lv, Lian Zhou, Xun-Wu Meng, Wei-Bo Xia
Diagnostic delay of tumor induced osteomalacia (TIO) is common in clinic practice. To investigate the diagnostic condition of TIO in China and raise clinicians' awareness of TIO, we retrospectively analyzed clinical manifestations, biochemical features, and specially evaluated missed diagnoses and misdiagnoses among 144 TIO patients from Peking Union Medical College Hospital during December 1982 to December 2014. Clinical presentations of TIO mainly included bone pain, difficulty in walking, pathological fractures, muscle weakness, and height loss...
April 26, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/28445160/association-between-mmp2-1306-c-t-polymorphism-and-prostate-cancer-susceptibility-a-meta-analysis-based-on-3906-subjects
#14
Kaiping Zhang, Xianguo Chen, Jun Zhou, Cheng Yang, Meng Zhang, Min Chao, Li Zhang, Chaozhao Liang
Numerous investigations have addressed the correlation between MMP2-1306C/T polymorphism and prostate cancer (PCa) susceptibility. However, these conclusions were controversial. Thus, we conducted this current meta-analysis based on six studies from PubMed, Embase, Cochrane Library, China Biology Medicine disc (CBM), China National Knowledge Infrastructure (CNKI) up to October 21st, 2016. Odds ratios (ORs) with 95% confidence intervals (CIs) were calculated to evaluate the strength of the correlations. Additionally, different subgroup analyses and publication bias tests were performed...
April 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28437035/the-association-between-oral-examination-findings-and-computed-tomographic-appearance-of-the-equine-temporomandibular-joint
#15
J L Carmalt, H Simhofer, A Bienert-Zeit, J E Rawlinson, C L Waldner
BACKGROUND: The temporomandibular joint (TMJ) forms the junction between the maxilla and mandible. Movement of the jaw and resulting masticatory forces have been extensively studied in the horse; however, less is known about the inter-relationship between this joint and oral and dental pathology. OBJECTIVES: To determine the association between specific oral and dental pathologies and anatomical variations of the TMJ imaged with computed tomography (CT) in horses with asymptomatic TMJs...
April 24, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28433788/regulation-of-human-nucleus-pulposus-cells-by-peptide-coupled-substrates
#16
Devin T Bridgen, Bailey V Fearing, Liufang Jing, Johannah Sanchez-Adams, Megan C Cohan, Farshid Guilak, Jun Chen, Lori A Setton
Nucleus pulposus (NP) cells are derived from the notochord and differ from neighboring cells of the intervertebral disc in phenotypic marker expression and morphology. Adult human NP cells lose this phenotype and morphology with age in a pattern that contributes to progressive disc degeneration and pathology. Select laminin-mimetic peptide ligands and substrate stiffnesses were examined for their ability to regulate human NP cell phenotype and biosynthesis through the expression of NP-specific markers aggrecan, N-cadherin, collagen types I and II, and GLUT1...
April 20, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28432852/correlation-between-expression-of-high-temperature-requirement-serine-protease-a1-htra1-in-nucleus-pulposus-and-t2-value-of-magnetic-resonance-imaging
#17
Dapeng Li, Jiawei Yue, Lu Jiang, Yonghui Huang, Jifu Sun, Yan Wu
BACKGROUND Degrading enzymes play an important role in the process of disc degeneration. The objective of this study was to investigate the correlation between the expression of high temperature requirement serine protease A1 (HtrA1) in the nucleus pulposus and the T2 value of the nucleus pulposus region in magnetic resonance imaging (MRI). MATERIAL AND METHODS Thirty-six patients who had undergone surgical excision of the nucleus pulposus were examined by MRI before surgery. Pfirrmann grading of the target intervertebral disc was performed according to the sagittal T2-weighted imaging, and the T2 value of the target nucleus pulposus was measured according to the median sagittal T2 mapping...
April 22, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28429143/how-to-treat-lumbar-disc-herniation-in-pregnancy-a-systematic-review-on-current-standards
#18
REVIEW
Alberto Di Martino, Fabrizio Russo, Luca Denaro, Vincenzo Denaro
PURPOSE: In this systematic review, we aim to illustrate the current and safe concepts in the assessment, diagnosis and management of herniated lumbar disc (HLD) during pregnancy. METHODS: A systematic review and reporting on the diagnosis, treatment and clinical results of HLD during pregnancy is performed. RESULTS: The MRI represents the first level and safest diagnostic tool for pregnant women affected by spinal problems allowing for a noninvasive and detailed radiological examination of the spine...
April 20, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28413117/structure-specific-movement-patterns-in-patients-with-chronic-low-back-dysfunction-using-lumbar-combined-movement-examination
#19
Aubrey P Monie, Roger I Price, Christopher R P Lind, Kevin P Singer
OBJECTIVE: A test-retest cohort study was conducted to assess the use of a novel computer-aided, combined movement examination (CME) to measure change in low back movement after pain management intervention in 17 cases of lumbar spondylosis. Additionally we desired to use a CME normal reference range (NRR) to compare and contrast movement patterns identified from 3 specific structural pathologic conditions: intervertebral disc, facet joint, and nerve root compression. METHODS: Computer-aided CME was used before and after intervention, in a cohort study design, to record lumbar range of movement along with pain, disability, and health self-report questionnaires in 17 participants who received image-guided facet, epidural, and/or rhizotomy intervention...
April 13, 2017: Journal of Manipulative and Physiological Therapeutics
https://www.readbyqxmd.com/read/28411110/impaired-wnt-signaling-and-the-spine-heterozygous-wnt1-mutation-causes-severe-age-related-spinal-pathology
#20
Riikka E Mäkitie, Tuukka Niinimäki, Miika T Nieminen, Camilla Schalin-Jäntti, Jaakko Niinimäki, Outi Mäkitie
BACKGROUND: WNT signaling plays a major role in bone and cartilage metabolism. Impaired WNT/β-catenin signaling leads to early-onset osteoporosis, but specific features in bone and other tissues remain inadequately characterized. We have identified two large Finnish families with early-onset osteoporosis due to a heterozygous WNT1 mutation c.652T>G, p.C218G. This study evaluated the impact of impaired WNT/β-catenin signaling on spinal structures. METHODS: Altogether 18 WNT1 mutation-positive (age range 11-76years, median 49years) and 14 mutation-negative subjects (10-77years, median 43years) underwent magnetic resonance imaging (MRI) of the spine...
April 11, 2017: Bone
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