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https://www.readbyqxmd.com/read/28328825/prevalence-of-symptomatic-hip-knee-and-spine-osteoarthritis-nationwide-health-survey-analysis-of-an-elderly-korean-population
#1
Jung-Ho Park, Jae-Young Hong, Kyungdo Han, Seung-Woo Suh, Si-Young Park, Jae-Hyuk Yang, Seung-Woo Han
Osteoarthritis is prominent among the elderly, with symptoms originating from multiple parts of the body. A cross-sectional study of a nationwide survey was performed to describe the prevalence of and identify factors related to symptomatic hip, knee, and spine osteoarthritis.This cross-sectional study collected data from the Fifth Korean National Health and Nutrition Examination Survey (KNHANES V-5; 2010-2012). After excluding ineligible subjects, there were 8976 subjects in this study (3830 males and 5146 females)...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28322381/first-principles-and-experimental-characterization-of-the-electronic-properties-of-cagasin3-and-caalsin3-the-impact-of-chemical-disorder
#2
Robin Niklaus, Ján Minár, Jonas Häusler, Wolfgang Schnick
We report a detailed investigation of the electronic, mechanical and optical properties of the recently discovered nitridogallosilicate CaGaSiN3 which has potential as a LED-phosphor host material. We focus on chemical disorder effects, originating from the Ga/Si site, and compared them to those of isostructural CaAlSiN3. We calculate the elastic moduli and the Debye temperature in terms of quasi harmonical approximation. Spectral properties like the joint density of states (JDOS) are evaluated and the absorption, reflectance and energy loss function are obtained from the dielectric function...
March 21, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28321445/planar-b38-and-b37-clusters-with-a-double-hexagonal-vacancy-molecular-motifs-for-borophenes
#3
Qiang Chen, Wen-Juan Tian, Lin-Yan Feng, Hai-Gang Lu, Yue-Wen Mu, Hua-Jin Zhai, Si-Dian Li, Lai-Sheng Wang
Boron clusters have been found to exhibit a variety of interesting electronic, structural, and bonding properties. Of particular interest are the recent discoveries of the 2D hexagonal B36(-/0) which led to the concept of borophenes and the 3D fullerene-like B40(-/0) which marked the onset of borospherene chemistry. Here, we present a joint photoelectron spectroscopic and first-principles study of B37(-) and B38(-), which are in the transition size range between the 2D borophene-type clusters and the 3D borospherenes...
March 21, 2017: Nanoscale
https://www.readbyqxmd.com/read/28303844/significance-of-diffusion-tensor-imaging-of-vastus-medialis-oblique-in-recurrent-patellar-dislocation
#4
Li-Si Liu, Zhuo-Zhao Zheng, Hui-Shu Yuan
BACKGROUND: Numerous studies have investigated the influence of osseous factors on patellofemoral joint instability, but research on the influence of dynamic muscle factors in vivo is still in the exploratory stage. This study aimed to use magnetic resonance imaging (MRI) and diffusion tensor imaging (DTI) to evaluate vastus medialis oblique (VMO) fiber bundles in patients with recurrent patellar dislocation to explore the changes in muscle morphology and function. METHODS: This prospective study involved 30 patients (7 males and 23 females; average age, 21...
March 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28288044/the-accessory-sacroiliac-joint-diagnosed-with-bone-spect-ct
#5
Ji-Hun Kang, Min-Woo Kim, Eun Ha Moon, Young Jun Kim, Ki Pi Yu
The accessory sacroiliac (SI) joint is not rare and can be one of the causes of lower back pain. We present a case of a 35-year-old woman with chronic lower back pain. Conventional radiography was equivocal, and bone scintigraphy showed a focus of mildly increased uptake in left SI joint region. SPECT/CT revealed increased uptakes in the accessory articulations between both sacral alae and iliac bones, and confirmed the diagnosis of accessory SI joint. This case illustrates the SPECT/CT findings of the accessory SI joint...
March 10, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28286523/interobserver-agreement-in-magnetic-resonance-of-the-sacroiliac-joints-in-patients-with-spondyloarthritis
#6
Juan C Rueda, Sofia Arias-Correal, Andres Y Vasquez, Enrique Calvo, Paola Peña, Marlon Porras, Jose-Ignacio Angarita, Eugenia-Lucia Saldarriaga, Ana M Santos, John Londono
Background. Clinical, laboratory, and radiologic parameters are used for diagnosis and classification of spondyloarthritis (SpA). Magnetic resonance imaging (MRI) of sacroiliac (SI) joints is being increasingly used to detect early sacroiliitis. We decided to evaluate the interobserver agreement in MRI findings of SI joints of SpA patients between a local radiologist, a rheumatologist, and an expert radiologist in musculoskeletal diseases. Methods. 66 MRI images of the SI joints of patients with established diagnosis of SpA were evaluated...
2017: International Journal of Rheumatology
https://www.readbyqxmd.com/read/28283515/comparison-of-mri-with-radiography-for-detecting-structural-lesions-of-the-sacroiliac-joint-using-ct-as-standard-of-reference-results-from-the-simact-study
#7
Torsten Diekhoff, Kay-Geert A Hermann, Juliane Greese, Carsten Schwenke, Denis Poddubnyy, Bernd Hamm, Joachim Sieper
OBJECTIVE: Radiographs of sacroiliac (SI) joints are used for the detection of structural damage in patients with axial spondyloarthritis (axSpA), but are often difficult to interpret. Here, we address the question how the T1-weighted MRI (T1w MRI) sequence compares with radiography for SI joints' structural lesions using low-dose CT as the standard of reference. METHODS: Radiographs, T1w MRI and low-dose CT of the SI joints from 110 patients (mean age 36.1 (19-57) years, 52% males and 48% females; 53% with axSpA, 21 non-radiographic axSpA and 32% radiographic axSpA, 47% with non-SpA) referred to the rheumatologist because of unclear chronic back pain, but possible axSpA, were scored for structural lesions (erosions, sclerosis, joint space changes and an overall impression of positivity)...
March 10, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28282549/atomic-resolution-chemical-mapping-of-ordered-precipitates-in-al-alloys-using-energy-dispersive-x-ray-spectroscopy
#8
Sigurd Wenner, Lewys Jones, Calin D Marioara, Randi Holmestad
Scanning transmission electron microscopy (STEM) coupled with energy-dispersive X-ray spectroscopy (EDS) is a common technique for chemical mapping in thin samples. Obtaining high-resolution elemental maps in the STEM is jointly dependent on stepping the sharply focused electron probe in a precise raster, on collecting a significant number of characteristic X-rays over time, and on avoiding damage to the sample. In this work, 80kV aberration-corrected STEM-EDS mapping was performed on ordered precipitates in aluminium alloys...
February 28, 2017: Micron: the International Research and Review Journal for Microscopy
https://www.readbyqxmd.com/read/28278383/3d-printed-poly-%C3%AE%C2%B5-caprolactone-scaffold-augmented-with-mesenchymal-stem-cells-for-total-meniscal-substitution
#9
Zheng-Zheng Zhang, Shao-Jie Wang, Ji-Ying Zhang, Wen-Bo Jiang, Ai-Bing Huang, Yan-Song Qi, Jian-Xun Ding, Xue-Si Chen, Dong Jiang, Jia-Kuo Yu
BACKGROUND: Total meniscectomy leads to knee osteoarthritis in the long term. The poly(ε-caprolactone) (PCL) scaffold is a promising material for meniscal tissue regeneration, but cell-free scaffolds result in relatively poor tissue regeneration and lead to joint degeneration. HYPOTHESIS: A novel, 3-dimensional (3D)-printed PCL scaffold augmented with mesenchymal stem cells (MSCs) would offer benefits in meniscal regeneration and cartilage protection. STUDY DESIGN: Controlled laboratory study...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28268344/the-variability-of-co-activation-pattern-of-antagonist-muscles-in-human-infant-crawling
#10
Qi L Xiong, Xiao Y Wu, Nong Xiao, Si Y Zeng, Xiao L Zheng, Di Wu, Wen S Hou
Infant crawling is part of normal human gross motor development, and a 4-beat gait that involves rhythmical flexion and extension of limbs and the underlying muscle co-activation of antagonist muscle around the joint. However, detection the co-activation pattern of antagonist muscle are sparse due to the general difficulty of measuring locomotion in human infants. In this paper, sEMG of antagonist muscles and the corresponding kinematics data of limbs were collected when infants were crawling on hands and knees at their self-selected speed...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28255260/lumbar-radiofrequency-rhizotomy-in-patients-with-chronic-low-back-pain-increases-the-diagnosis-of-sacroiliac-joint-dysfunction-in-subsequent-follow-up-visits
#11
Varun Kumar Rimmalapudi, Sanjeev Kumar
Chronic back pain is often a result of coexisting pathologies; secondary causes of pain can become more apparent sources of pain once the primary pathology has been addressed. The objective of our study was to determine if there is an increase in diagnosis of Sacroiliac joint pain following a Lumbar Rhizotomy. A list of patients who underwent Lumbar Radiofrequency during a 6-month period in our clinic was generated. Records from subsequent clinic visits were reviewed to determine if a new diagnosis of SI joint pathology was made...
2017: Pain Research & Management: the Journal of the Canadian Pain Society
https://www.readbyqxmd.com/read/28244457/incidence-and-pattern-of-bone-metastases-at-presentation-in-indian-carcinoma-breast-patients
#12
S M Doddala, A Suryadevara, S K Chinta, A L Madisetty
BACKGROUND: Breast cancer (BC) is the most common female cancer and frequently metastases to the bones. Breast cancer among Indian women occurs a decade earlier and more aggressive than the western population. Screening guidelines are based on western studies. The aim of our study is to assess the role of Technitium99m bone scan (TBS) in screening Indian EBC patients at presentation. We also looked at the pattern of BM in all stages of BC. METHODS: Patients with BC who had TBS at presentation from January 2012 to September 2015 were included in the study...
July 2016: Indian Journal of Cancer
https://www.readbyqxmd.com/read/28244109/improvements-of-an-objective-model-of-compressed-breasts-undergoing-mammography-generation-and-characterization-of-breast-shapes
#13
Alejandro Rodríguez-Ruiz, Steve Si Jia Feng, Jan van Zelst, Suzan Vreemann, Jessica Rice Mann, Carl Joseph D'Orsi, Ioannis Sechopoulos
PURPOSE: To develop a set of accurate 2D models of compressed breasts undergoing mammography or breast tomosynthesis, based on objective analysis, to accurately characterize mammograms with few linearly independent parameters, and to generate novel clinically realistic paired cranio-caudal (CC) and medio-lateral oblique (MLO) views of the breast. METHODS: We seek to improve on an existing model of compressed breasts by overcoming detector size bias, removing the nipple and non-mammary tissue, pairing the CC and MLO views from a single breast, and incorporating the pectoralis major muscle contour into the model...
February 28, 2017: Medical Physics
https://www.readbyqxmd.com/read/28236124/prevalence-and-clinical-significance-of-lumbosacral-transitional-vertebra-lstv-in-a-young-back-pain-population-with-suspected-axial-spondyloarthritis-results-of-the-spondyloarthritis-caught-early-space-cohort
#14
F de Bruin, S Ter Horst, J L Bloem, R van den Berg, M de Hooge, F van Gaalen, H Dagfinrud, M van Oosterhout, R Landewé, D van der Heijde, M Reijnierse
OBJECTIVE: To determine in a cohort of young patients with suspected axial spondyloarthritis (axSpA), the prevalence of lumbosacral transitional vertebra (LSTV), its association with local bone marrow edema (BME) and lumbar spine degeneration, and the potential relationship with MRI findings and clinical signs of axSpA. MATERIALS AND METHODS: Baseline imaging studies and clinical information of patients from the SPondyloArthritis Caught Early-cohort (back pain ≥3 months, ≤2 years, onset <45 years) were used...
February 24, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28226505/the-variability-of-co-activation-pattern-of-antagonist-muscles-in-human-infant-crawling
#15
Qi L Xiong, Xiao Y Wu, Nong Xiao, Si Y Zeng, Xiao L Zheng, Di Wu, Wen S Hou, Qi L Xiong, Xiao Y Wu, Nong Xiao, Si Y Zeng, Xiao L Zheng, Di Wu, Wen S Hou, Wen S Hou, Xiao L Zheng, Di Wu, Xiao Y Wu, Qi L Xiong, Nong Xiao, Si Y Zeng
Infant crawling is part of normal human gross motor development, and a 4-beat gait that involves rhythmical flexion and extension of limbs and the underlying muscle co-activation of antagonist muscle around the joint. However, detection the co-activation pattern of antagonist muscle are sparse due to the general difficulty of measuring locomotion in human infants. In this paper, sEMG of antagonist muscles and the corresponding kinematics data of limbs were collected when infants were crawling on hands and knees at their self-selected speed...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28213286/investigation-of-silicon-carbon-nitride-nanocomposite-films-as-a-wear-resistant-layer-in-vitro-and-in-vivo-for-joint-replacement-applications
#16
Y Liang, D G Liu, W Q Bai, J P Tu
Silicon-contained CNx nanocomposite films were prepared using the ion beam assisted magnetron sputtering under different nitrogen gas pressure. With increase of the nitrogen pressure, silicon and nitrogen content of the CNx films drastically increase, and is saturated as the PN2 reach about 40%. Surface roughness and the contact angle are increase, while the friction coefficient decreased. The CNx film with 5.7at.% Si content possess the lowest friction coefficient of only 0.07, and exhibited the best tribological properties...
February 10, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28168397/clinical-correlation-of-metabolic-parameters-on-18-f-fdg-pet-ct-in-idiopathic-frozen-shoulder
#17
Kyoung Sook Won, Du Hwan Kim, Duk Hyun Sung, Bong-Il Song, Hae Won Kim, Kwang-Soon Song, Si-Wook Lee, Chul-Hyun Cho
OBJECTIVE: Because positron emission tomography/computed tomography (PET/CT) using fluorine-18-fluorodeoxyglucose ((18)F-FDG) can be used to visualize inflammation of the musculoskeletal system, it may help elucidate the pathophysiology of frozen shoulder (FS). The purpose of this study was to characterize the uptake pattern on (18)F-FDG PET/CT in patients with idiopathic FS and to determine if there is a correlation between its metabolic parameters and clinical findings. METHODS: (18)F-FDG PET/CT was conducted to 35 patients with unilateral idiopathic FS...
February 6, 2017: Annals of Nuclear Medicine
https://www.readbyqxmd.com/read/28159040/recombinant-human-platelet-derived-growth-factor-bb-versus-autologous-bone-graft-in-foot-and-ankle-fusion-a-systematic-review-and-meta-analysis
#18
Han Sun, Pei-Pei Lu, Ping-Hui Zhou, Si-Wei Sun, Hong-Tao Zhang, Yi-Jie Liu, Xu Yang, Xiao-Feng Shen, Hui-Lin Yang
Today, autogenous bone graft (ABG) is still considered as the gold standard for joint fusion. Recombinant human platelet-derived growth factor-BB (rhPDGF-BB) which is of chemotactic and mitogenic to mesenchymal stem cells and possesses outstanding osteogenetic potentials has been used for ankle and foot fusion in recent years. The goal of this article is to evaluate the safety and efficacy of rhPDGF-BB versus ABG in foot and ankle fusion. The PubMed MEDLINE, EMBASE, Web of Science, and Cochrane Library were systematic searched...
March 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28144161/influence-of-bmi-gender-and-sports-on-pain-decrease-and-medication-usage-after-facet-medial-branch-neurotomy-or-si-joint-lateral-branch-cooled-rf-neurotomy-in-case-of-low-back-pain-original-research-in-the-austrian-population
#19
Wolfgang Stelzer, Valentin Stelzer, Dominik Stelzer, Monika Braune, Christine Duller
PURPOSE: This retrospective original research was designed to illustrate the general outcome after radiofrequency (RF) neurotomy of lumbar medial branch (MB) and posterior ramus of the sacroiliac joint of 160 patients with chronic low back pain (LBP) 1, 6, and 12 months after treatment. METHODS: Visual Analog Scale (VAS) 0-10 pain scores, quality of life, body mass index (BMI), medication usage, and frequency of physical exercise/sports participation (none, 1-3×/week, more) were collected before the procedure, at 1 month post procedure (n=160), and again at 6 (n=73) and 12 months (n=89) post procedure...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28119837/comparison-of-balance-proprioception-and-skeletal-muscle-mass-in-total-hip-replacement-patients-with-and-without-fracture-a-pilot-study
#20
Seunghwi Jo, Si-Bog Park, Mi Jung Kim, Taikon Kim, Kyeong Il Park, Junhyun Sung, Un Jin Park, Yee Suk Kim, Byeong Jik Kang, Kyu Hoon Lee
OBJECTIVE: To determine whether there was a difference in balance, proprioception, and skeletal muscle mass among patients who undergo hip fracture surgery relative to and elective total hip replacement (THR). METHODS: Thirty-one THR patients were enrolled. The patients were categorized into two groups: fracture group (n=15) and non-fracture group (n=16). Berg Balance Scale (BBS) was used to balance the proprioception of the hip joint while a joint position sense (JPS) test was used to evaluate it...
December 2016: Annals of Rehabilitation Medicine
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