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https://www.readbyqxmd.com/read/28226505/the-variability-of-co-activation-pattern-of-antagonist-muscles-in-human-infant-crawling
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
https://www.readbyqxmd.com/read/28117942/the-effect-of-simulated-inflammatory-conditions-and-fenton-chemistry-on-the-electrochemistry-of-cocrmo-alloy
#7
Yangping Liu, Jeremy L Gilbert
Inflamed conditions may develop in total joint replacement applications and may impact on the corrosion of metallic biomaterials like CoCrMo alloy. The influence of simulated inflammatory (SI) conditions on the corrosion behavior of CoCrMo alloy was investigated. A range of SI solutions, based on phosphate buffered saline with H2 O2 , HCl, and Fe(3+) additions, were investigated. Open circuit potential (OCP), corrosion currents and impedance of the oxide film surface were all significantly (p < 0.05) affected by increases in H2 O2 concentration and decrease of pH...
January 24, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28113432/merge-frame-design-for-video-stream-switching-using-piecewise-constant-functions
#8
Wei Dai, Gene Cheung, Ngai-Man Cheung, Antonio Ortega, Oscar Au
The ability to efficiently switch from one preencoded video stream to another (e.g., for bitrate adaptation or view switching) is important for many interactive streaming applications. Recently, stream-switching mechanisms based on distributed source coding (DSC) have been proposed. In order to reduce the overall transmission rate, these approaches provide a "merge" mechanism, where information is sent to the decoder such that the exact same frame can be reconstructed given that any one of a known set of side information (SI) frames is available at the decoder (e...
May 20, 2016: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28103710/radiography-and-abdominal-ct-compared-with-sacroiliac-joint-ct-in-the-diagnosis-of-sacroiliitis
#9
Julian Melchior, Yusef Azraq, Isabelle Chary-Valckenaere, Anne-Christine Rat, Pedro Texeira, Alain Blum, Damien Loeuille
Background The presence of structural sacroiliitis is strong evidence for the diagnosis of spondyloarthritis (SpA). Purpose To assess the performance of abdominal computed tomography (CT) and pelvic plain radiography for the diagnosis of structural sacroiliitis compared with sacroiliac CT (SI joint CT) considered the reference technique in patients with SpA. Material and Methods All SpA patients eligible for biologic treatment were selected from 2005 to 2012. An assessment of sacroiliitis was based on radiography according to the modified New York criteria and on abdominal CT and SI joint CT scans depending on the presence of erosion on at least two consecutive slices...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28096589/water-cooled-radiofrequency-neuroablation-for-sacroiliac-joint-dysfunctional-pain
#10
Binay Kumar Biswas, Samarjit Dey, Saumya Biswas, Varinder Kumar Mohan
Sacroiliac (SI) joint dysfunction is a common source of chronic low-back pain. Recent evidences from different parts of the world suggest that cooled radiofrequency (RF) neuroablation of sacral nerves supplying SI joints has superior pain alleviating properties than available existing treatment options for SI joint dysfunctional pain. A 35-year-old male had intractable bilateral SI joint pain (numeric rating scale [NRS] - 9/10) with poor treatment response to intra-articular steroid therapy. Bilateral water cooled = RF was applied for neuroablation of nerves supplying both SI joints...
October 2016: Journal of Anaesthesiology, Clinical Pharmacology
https://www.readbyqxmd.com/read/28093580/observation-of-a-metal-centered-b2-ta-b18-tubular-molecular-rotor-and-a-perfect-ta-b20-boron-drum-with-the-record-coordination-number-of-twenty
#11
Wan-Lu Li, Tian Jian, Xin Chen, Hai-Ru Li, Teng-Teng Chen, Xue-Mei Luo, Si-Dian Li, Jun Li, Lai-Sheng Wang
A tubular molecular rotor B2-Ta@B18(-) (1) and boron drum Ta@B20(-) (2) with the highest coordination number of twenty in chemistry are observed via a joint photoelectron spectroscopy and first-principles theory investigation.
January 17, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28065216/expression-of-mirna-140-in-chondrocytes-and-synovial-fluid-of-knee-joints-in-patients-with-osteoarthritis
#12
Si Hai-Bo, Zeng Yi, Zhou Zong-Ke, Pei Fu-Xing, Lu Yan-Rong, Cheng Jing-Qiu, Shen Bin
Objective To investigate the expression of miRNA-140 in chondrocytes and synovial fluid of osteoarthritis (OA) patients, and explore the relationship between the miRNA-140 expression and OA severity.Methods This study enrolled 30 OA patients who underwent total knee arthroplasty for chondrocytes sampling and 30 OA patients who underwent intra-articular injection for synovial fluid sampling. All OA patients were grouped into mild [Kellgren and Lawrence (KL) grade 1-2], moderate (KL grade 3) and severe (KL grade 4), with 10 in each subgroups for each sampling purposes...
November 20, 2016: Chinese Medical Sciences Journal, Chung-kuo i Hsüeh K'o Hsüeh Tsa Chih
https://www.readbyqxmd.com/read/28062405/presence-of-multiple-spondyloarthritis-spa-features-is-important-but-not-sufficient-for-a-diagnosis-of-axial-spondyloarthritis-data-from-the-spondyloarthritis-caught-early-space-cohort
#13
Z Ez-Zaitouni, P A C Bakker, M van Lunteren, I J Berg, R Landewé, M van Oosterhout, M Lorenzin, D van der Heijde, F A van Gaalen
OBJECTIVES: Concerns have been raised about overdiagnosis of axial spondyloarthritis (axSpA). We investigated whether patients with chronic back pain (CBP) of short duration and multiple SpA features are always diagnosed with axSpA by the rheumatologist, and to what extent fulfilment of the Assessment of SpondyloArthritis International Society (ASAS) axSpA criteria is associated with an axSpA diagnosis. METHODS: Baseline data from 500 patients from the SPondyloArthritis Caught Early cohort which includes patients with CBP (≥3 months, ≤2 years, onset <45 years) were analysed...
January 6, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28058962/short-term-effect-of-ultrasound-guided-low-molecular-weight-hyaluronic-acid-injection-on-clinical-outcomes-and-imaging-changes-in-patients-with-rheumatoid-arthritis-of-the-ankle-and-foot-joints-a-randomized-controlled-pilot-trial
#14
Chien-Chih Wang, Si-Huei Lee, Hsiao-Yi Lin, Fu-Wei Liu, Hong-Jen Chiou, Rai-Chi Chan, Chen-Liang Chou
To determine whether hyaluronic acid (HA) injection into rheumatoid arthritis ankles and feet can achieve improvement in foot function and reduce synovial hyper-vascularization. Forty-four patients with RA having unilateral or bilateral painful ankle and foot involvement (N = 75) were studied. All the patients were randomized to receive HA (N = 40) or lidocaine (LI) (N = 35) injection at 2-week intervals; Clinical assessments were performed using a visual analog scale (VAS) and foot function index (FFItotal) including subscales of pain (FFIpain) before injection at baseline, 4 weeks (first evaluation) and 12 weeks (secondary evaluation)...
January 6, 2017: Modern Rheumatology
https://www.readbyqxmd.com/read/28048706/tu-ab-bra-06-best-in-physics-joint-imaging-therapy-an-mri-compatible-externally-and-internally-deformable-lung-motion-phantom-for-multi-modality-igrt
#15
P Sabouri, T Arai, A Sawant
PURPOSE: MRI has become an attractive tool for tumor motion management. Current MR-compatible phantoms are only capable of reproducing translational motion. This study describes the construction and validation of a more realistic, MRI-compatible lung phantom that is deformable internally as well as externally. We demonstrate a radiotherapy application of this phantom by validating the geometric accuracy of the open-source deformable image registration software NiftyReg (UCL, UK). METHODS: The outer shell of a commercially-available dynamic breathing torso phantom was filled with natural latex foam with eleven water tubes...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047228/th-ab-202-05-best-in-physics-joint-imaging-therapy-first-online-ultrasound-guided-mlc-tracking-for-real-time-motion-compensation-in-radiotherapy
#16
S Ipsen, R Bruder, R O'Brien, P Keall, A Schweikard, P Poulsen
PURPOSE: While MLC tracking has been successfully used for motion compensation of moving targets, current real-time target localization methods rely on correlation models with x-ray imaging or implanted electromagnetic transponders rather than direct target visualization. In contrast, ultrasound imaging yields volumetric data in real-time (4D) without ionizing radiation. We report the first results of online 4D ultrasound-guided MLC tracking in a phantom. METHODS: A real-time tracking framework was installed on a 4D ultrasound station (Vivid7 dimension, GE) and used to detect a 2mm spherical lead marker inside a water tank...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/27997346/efficiency-of-treatment-with-non-steroidal-anti-inflammatory-drugs-according-to-current-recommendations-in-patients-with-radiographic-and-non-radiographic-axial-spondyloarthritis
#17
Xenofon Baraliakos, Uta Kiltz, Soeren Peters, Heiner Appel, Friedrich Dybowski, Manfred Igelmann, Ludwig Kalthoff, Dietmar Krause, Hans-Juergen Menne, Ertan Saracbasi-Zender, Elmar Schmitz-Bortz, Mathura Vigneswaran, Juergen Braun
OBJECTIVE: NSAIDs are first-line therapy in axial SpA (axSpA). The proportion of patients responding to NSAIDs and differences between AS and non-radiographic axSpA (nr-axSpA) in this regard have not been studied in detail to date. The aim of this study was to examine the proportion of patients with AS and nr-axSpA responding to NSAIDs according to current treatment recommendations. METHODS: Consecutive anti-TNF-naïve patients with nr-axSpA and AS (n = 50 each) were included if their BASDAI score was ⩾4 without having received maximal NSAID doses...
January 2017: Rheumatology
https://www.readbyqxmd.com/read/27983584/doa-and-polarization-estimation-using-an-electromagnetic-vector-sensor-uniform-circular-array-based-on-the-esprit-algorithm
#18
Na Wu, Zhiyu Qu, Weijian Si, Shuhong Jiao
In array signal processing systems, the direction of arrival (DOA) and polarization of signals based on uniform linear or rectangular sensor arrays are generally obtained by rotational invariance techniques (ESPRIT). However, since the ESPRIT algorithm relies on the rotational invariant structure of the received data, it cannot be applied to electromagnetic vector sensor arrays (EVSAs) featuring uniform circular patterns. To overcome this limitation, a fourth-order cumulant-based ESPRIT algorithm is proposed in this paper, for joint estimation of DOA and polarization based on a uniform circular EVSA...
December 13, 2016: Sensors
https://www.readbyqxmd.com/read/27981439/development-and-content-validity-of-the-statin-experience-assessment-questionnaire-seaq-%C3%A2
#19
Terry A Jacobson, Steven V Edelman, Nina Galipeau, Alan L Shields, Usha G Mallya, Andrew Koren, Michael H Davidson
INTRODUCTION: The National Lipid Association Statin Intolerance (SI) Panel recognized the need for better understanding of the patient SI experience. OBJECTIVE: The objective of this research was to develop a patient-reported outcome (PRO) questionnaire to assess a patient's experience with SI. METHODS: Questionnaire development was informed via a series of research activities: literature review, concept elicitation, item generation, and content evaluation...
December 15, 2016: Patient
https://www.readbyqxmd.com/read/27974100/clinical-and-genetic-associations-of-radiographic-sacroiliitis-and-its-different-patterns-in-psoriatic-arthritis
#20
Muhammad Haroon, Robert Winchester, Jon T Giles, Eric Heffernan, Oliver FitzGerald
OBJECTIVES: We aimed to 1) to identify clinical and genetic associations of sacroiliitis (SI) in patients with psoriatic arthritis (PsA), and 2) to describe the different radiographic patterns of SI in PsA and their clinical and genetic associations. METHODS: 283 PsA patients, fulfilling CASPAR criteria, underwent detailed skin and rheumatologic assessments. In addition, HLA-B*27 and B*080101 status was recorded, which have been shown as the key genetic markers of radiographic SI in PsA...
December 13, 2016: Clinical and Experimental Rheumatology
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