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https://www.readbyqxmd.com/read/27921302/the-role-of-embryo-movement-in-the-development-of-the-furcula
#1
A S Pollard, S Boyd, I M McGonnell, A A Pitsillides
The pectoral girdle is a complex structure which varies in its morphology between species. A major component in birds is the furcula, which can be considered equivalent to a fusion of the paired clavicles found in many mammals, and the single interclavicle found in many reptiles. These elements are a remnant of the dermal skeleton and the only intramembranous bones in the trunk. Postnatally, the furcula plays important mechanical roles by stabilising the shoulder joint and acting as a mechanical spring during flight...
December 6, 2016: Journal of Anatomy
https://www.readbyqxmd.com/read/27921292/cranial-joint-histology-in-the-mallard-duck-anas-platyrhynchos-new-insights-on-avian-cranial-kinesis
#2
Alida M Bailleul, Lawrence M Witmer, Casey M Holliday
The evolution of avian cranial kinesis is a phenomenon in part responsible for the remarkable diversity of avian feeding adaptations observable today. Although osteological, developmental and behavioral features of the feeding system are frequently studied, comparatively little is known about cranial joint skeletal tissue composition and morphology from a microscopic perspective. These data are key to understanding the developmental, biomechanical and evolutionary underpinnings of kinesis. Therefore, here we investigated joint microstructure in juvenile and adult mallard ducks (Anas platyrhynchos; Anseriformes)...
December 6, 2016: Journal of Anatomy
https://www.readbyqxmd.com/read/27921093/evaluation-of-a-novel-semi-automated-ultrasound-system-for-the-detection-of-synovitis-a-prospective-study-involving-45-patients-with-rheumatoid-arthritis
#3
M Witt, J Frielinghausen, R Mueller, F Mueller, F Proft, H Schulze-Koops, M Grunke, D-A Clevert
Background: Arthrosonography has proven to be more sensitive and reliable for the detection of synovitis than clinical examination, but a comprehensive examination of small joints is time-consuming. The automated breast volume scanner (ABVS) has been developed to allow automatic and reproducible series of consecutive B-mode pictures of the female breast. Objectives: To analyze the comparability of ABVS and conventional manual ultrasonography (mUS) for the detection of synovitis in hands and feet of patients with rheumatoid arthritis (RA)...
November 2016: Ultrasound International Open
https://www.readbyqxmd.com/read/27920813/densitometric-evaluation-of-bone-prosthetic-counterface-in-hip-and-knee-arthroplasty-with-modern-implants
#4
Andrea Cozzi Lepri, Marco Giorgini, Carla Signorini, Christian Carulli, Roberto Civinini, Maria Luisa Brandi, Massimo Innocenti
INTRODUCTION: Recent acquisitions of the complex mechanisms of osseointegration between implants and host bone have gained attention, accordingly to the methods of evaluation of these interactions. DEXA analysis is considered an useful tool to assess such phenomena, in order to analyse in a quantitative manner the local metabolic activity of the bone, and to evaluate over the time the integration between host bone and prosthetic components. The purpose of the present study is to report about a preliminary experience in the analysis of osseointegration processes of patients undergoing a primary Total Hip Arthroplasty (THA) or a revision Total Knee Arthroplasty (rTKA)...
May 2016: Clinical Cases in Mineral and Bone Metabolism
https://www.readbyqxmd.com/read/27920583/intellijoint-hip-%C3%A2-a-3d-mini-optical-navigation-tool-for-improving-intraoperative-accuracy-during-total-hip-arthroplasty
#5
Wayne G Paprosky, Jeffrey M Muir
Total hip arthroplasty is an increasingly common procedure used to address degenerative changes in the hip joint due to osteoarthritis. Although generally associated with good results, among the challenges associated with hip arthroplasty are accurate measurement of biomechanical parameters such as leg length, offset, and cup position, discrepancies of which can lead to significant long-term consequences such as pain, instability, neurological deficits, dislocation, and revision surgery, as well as patient dissatisfaction and, increasingly, litigation...
2016: Medical Devices: Evidence and Research
https://www.readbyqxmd.com/read/27920236/the-efficacy-of-recombinant-fviii-low-dose-prophylaxis-in-chinese-pediatric-patients-with-severe-hemophilia-a-a-retrospective-analysis-from-the-recare-study
#6
Wanru Yao, Juan Xiao, Xiaoling Cheng, Guoshuang Feng, Changgang Li, Xinsheng Zhang, Qun Hu, Weiqun Xu, Jing Sun, Renchi Yang, Xiaojing Li, Rongfu Zhou, Shimei Lian, Jian Gu, Junde Wu, Yongqiang Zhao, Runhui Wu
OBJECTIVE: This study explores the efficacy of recombinant factor VIII (rFVIII) low-dose prophylaxis in Chinese pediatric patients with severe hemophilia A from the Retrospective Study in Chinese Pediatric Hemophilia A Patients With rFVIII Contained Regular Prophylaxis (ReCARE) population. METHODS: This is additional analysis of the multicenter, retrospective ReCARE study, in which the annual bleeding rate (ABR), annual joint bleeding rate (AJBR), and safety of >12-week, low dose (10-30 IU/kg/wk) rFVIII prophylaxis divided into primary, secondary, and tertiary groups based on the joint status and joint bleeding history were analyzed...
December 5, 2016: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/27919672/a-study-of-pre-operative-presence-of-micro-organisms-in-affected-knee-joints-of-rheumatoid-arthritis-patients-who-need-total-knee-arthroplasty
#7
Jiang-Ming Luo, Lin Guo, Hao Chen, Peng-Fei Yang, Ran Xiong, Yang Peng, Liu Yang
BACKGROUND: To evaluate, by way of intraoperative tissue culture and pathological study, the pre-operative presence of micro-organisms in knee joints of patients with rheumatoid arthritis (RA) who need total knee arthroplasty (TKA). METHODS: From November 2012 to January 2014, 47 patients with RA (53 knees) who needed TKA were included in this study. Patients received routine pre-operative examination and joint fluid routine and culture. Each RA patient was match-paired with one osteoarthritis (OA) patient...
December 2, 2016: Knee
https://www.readbyqxmd.com/read/27919580/variation-in-diagnoses-for-hip-arthroplasty-among-new-york-state-hospitals-implications-for-the-comprehensive-care-for-joint-replacement-model
#8
John A Buza, Jeffrey M Jancuska, James D Slover, Richard Iorio, Joseph A Bosco
BACKGROUND: The Comprehensive Care for Joint Replacement model is designed to minimize costs and improve quality for Medicare patients undergoing joint arthroplasty. The cost of hip arthroplasty (HA) episode varies depending on the preoperative diagnosis and is greater for fracture than for osteoarthritis. Hospitals that perform a higher percentage of HA for OA may therefore have an advantage in the Comprehensive Care for Joint Replacement model. The purposes of this study are to (1) determine the variability in underlying diagnosis for HA in New York State hospitals, and (2) determine hospital characteristics, such as volume, associated with this...
November 15, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27919578/is-the-commercial-antibiotic-loaded-bone-cement-useful-in-prophylactic-and-cost-saving-after-knee-and-hip-joint-arthroplasty-the-transatlantic-paradox
#9
Pablo Sanz-Ruiz, Jose Antonio Matas-Diez, Mar Sanchez-Somolinos, Manuel Villanueva-Martinez, Javier Vaquero-Martín
BACKGROUND: The use of antibiotic-loaded bone cement (ALBC) has proven to be effective in preventing periprosthetic infection (PPI) after total hip (THA) and knee arthroplasty (TKA). However, the economic benefit of using ALBC routinely remains controversial. METHODS: A total of 2518 patients subjected to THA, partial hip arthroplasty, and TKA between 2009 and 2012 were identified in our prospectively collected registry. Two groups were defined: before (2009-2010) and after the introduction of ALBC (2011-2012)...
November 15, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27919571/long-noncoding-rnas-in-osteoarthritis
#10
Shi-de Jiang, Jian Lu, Zhen-Han Deng, Yu-Sheng Li, Guang-Hua Lei
Osteoarthritis (OA) is the most common form of arthritis that may affect all joint tissues. Unfortunately, the pathogenesis of OA is not fully understood yet and it cannot be cured totally. Long noncoding RNA (lncRNA) is a type of RNA molecule greater than 200 nucleotides, and deregulated expression of lncRNAs plays an important role in many types of inflammation-related diseases. In this review, we have focused on the association of lncRNAs in the development and progression of OA and the possibility of lncRNAs as a therapeutic agent for the treatment of OA...
December 2, 2016: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/27919200/bony-ankylosis-of-the-facet-joint-of-the-cervical-spine-in-rheumatoid-arthritis-its-characteristics-and-relationship-to-the-clinical-findings
#11
Haku Iizuka, Yoichi Iizuka, Koichi Okamura, Yukio Yonemoto, Tokue Mieda, Kenji Takagishi
OBJECTIVES: The purpose of this study was to clarify the characteristics of bony ankylosis of the facet joint of the cervical spine in RA patients who required cervical spine surgery, and its relationship to the clinical findings. METHODS: Eighty consecutive RA patients with cervical spine disorder who received initial surgery were reviewed. The occurrence of bony ankylosis of the facet joint of the cervical spine was investigated using computed tomography (CT) before surgery...
December 6, 2016: Modern Rheumatology
https://www.readbyqxmd.com/read/27919199/predictive-factors-associated-with-the-progression-of-large-joint-destruction-in-patients-with-rheumatoid-arthritis-after-biologic-therapy-a-post-hoc-analysis-using-fdg-pet-ct-and-the-arashi-assessment-of-rheumatoid-arthritis-by-scoring-of-large-joint-destruction
#12
Takahito Suto, Yukio Yonemoto, Koichi Okamura, Chisa Okura, Tetsuya Kaneko, Tsutomu Kobayashi, Masahiro Tachibana, Yoshito Tsushima, Kenji Takagishi
OBJECTIVE: To investigate the associations between large joint damage and findings on fluorodeoxyglucose positron emission tomography combined with computed tomography (FDG-PET/CT) using the "assessment of rheumatoid arthritis by scoring of large joint destruction and healing in radiographic imaging (ARASHI)" scoring system. METHODS: A total of 270 large joints (shoulders, elbows, hips, knees, and ankles) in 27 rheumatoid arthritis patients were assessed. FDG-PET/CT was performed at the initiation of biologics...
December 6, 2016: Modern Rheumatology
https://www.readbyqxmd.com/read/27918885/mutant-ccl2-protein-coating-mitigates-wear-particle-induced-bone-loss-in-a-murine-continuous-polyethylene-infusion-model
#13
Akira Nabeshima, Jukka Pajarinen, Tzu-Hua Lin, Xinyi Jiang, Emmanuel Gibon, Luis A Córdova, Florence Loi, Laura Lu, Eemeli Jämsen, Kensuke Egashira, Fan Yang, Zhenyu Yao, Stuart B Goodman
Wear particle-induced osteolysis limits the long-term survivorship of total joint replacement (TJR). Monocyte/macrophages are the key cells of this adverse reaction. Monocyte Chemoattractant Protein-1 (MCP-1/CCL2) is the most important chemokine regulating trafficking of monocyte/macrophages in particle-induced inflammation. 7ND recombinant protein is a mutant of CCL2 that inhibits CCL2 signaling. We have recently developed a layer-by-layer (LBL) coating platform on implant surfaces that can release biologically active 7ND...
November 24, 2016: Biomaterials
https://www.readbyqxmd.com/read/27918630/changes-in-gait-patterns-induced-by-rhythmic-auditory-stimulation-for-adolescents-with-acquired-brain-injury
#14
Soo Ji Kim, Yoon-Kyum Shin, Ga Eul Yoo, Hyun Ju Chong, Sung-Rae Cho
The effects of rhythmic auditory stimulation (RAS) on gait in adolescents with acquired brain injury (ABI) were investigated. A total of 14 adolescents with ABI were initially recruited, and 12 were included in the final analysis (n = 6 each). They were randomly assigned to the experimental (RAS) or the control (conventional gait training) groups. The experimental group received gait training with RAS three times a week for 4 weeks. For both groups, spatiotemporal parameters and kinematic data, such as dynamic motions of joints on three-dimensional planes during a gait cycle and the range of motion in each joint, were collected...
December 2016: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/27916825/optimal-resource-allocation-policies-for-multi-user-backscatter-communication-systems
#15
Bin Lyu, Zhen Yang, Guan Gui, Youhong Feng
This paper considers a backscatter communication (BackCom) system including a reader and N tags, where each tag receives excitation signals transmitted by the reader and concurrently backscatters information to the reader in time-division-multiple-access (TDMA) mode. In this system, we aim to maximize the total system goodput by jointly optimizing reader transmission power, time allocation, and reflection ratio for the cases of passive and semi-passive tags. For each case, an optimization problem is formulated, which is non-convex and can be solved by being decomposed into at most N feasible sub-problems based on the priority of allocated reader transmission power...
November 29, 2016: Sensors
https://www.readbyqxmd.com/read/27916560/thinning-of-articular-cartilage-after-joint-unloading-or-immobilization-an-experimental-investigation-of-the-pathogenesis-in-mice
#16
Masato Nomura, Naoyoshi Sakitani, Hiroyuki Iwasawa, Yuta Kohara, Shoko Takano, Yoshio Wakimoto, Hiroshi Kuroki, Hideki Moriyama
OBJECTIVE: Moderate mechanical stress generated by normal joint loading and movement is essential for the maintenance of healthy articular cartilage. However, the effects of reduced loading caused by the absence of weight bearing or joint motion on articular cartilage and subchondral bone is still poorly understood. We aimed to characterize morphological and metabolic responses of articular cartilage and subchondral bone to decreased mechanical stress in vivo. METHODS: Mice were subjected to periods of hindlimb unloading by tail suspension or external fixation of the knee joints...
December 1, 2016: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/27916487/evaluation-of-hepatoprotective-potential-of-erythrina-indica-leaves-against-antitubercular-drugs-induced-hepatotoxicity-in-experimental-rats
#17
Mohd Mujahid, Talib Hussain, Hefazat Hussain Siddiqui, Arshad Hussain
BACKGROUND: Erythrina indica Lam. traditionally used in the treatment of laxative, diuretic, worm infestation, liver ailment and joints pain. OBJECTIVE: To evaluate the antihepatotoxic potential of Erythrina indica against isoniazid (INH) and rifampicin (RIF) induced hepatotoxicity in rats. METHODS AND MATERIAL: Liver toxicity was induced by antitubercular drugs (INH+ RIF) at dose level of 50 mg/kg each, p.o for 28 days. 50% methanolic extract of Erythrina indica (100 and 200 mg/kg) were administered orally once daily for 28 days...
December 1, 2016: Journal of Ayurveda and Integrative Medicine
https://www.readbyqxmd.com/read/27915220/stability-maneuverability-trade-offs-during-lateral-steps
#18
Julian Acasio, Mengnan/Mary Wu, Nicholas P Fey, Keith E Gordon
Selecting a specific foot placement strategy to perform walking maneuvers requires the management of several competing factors, including: maintaining stability, positioning oneself to actively generate impulses, and minimizing mechanical energy requirements. These requirements are unlikely to be independent. Our purpose was to determine the impact of lateral foot placement on stability, maneuverability, and energetics during walking maneuvers. Ten able-bodied adults performed laterally-directed walking maneuvers...
November 23, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27914722/poor-expectations-of-knee-replacement-benefit-are-associated-with-modifiable-psychological-factors-and-influence-the-decision-to-have-surgery-a-cross-sectional-and-longitudinal-study-of-a-community-based-sample
#19
Daniel L Riddle, Gregory J Golladay, Amanda Hayes, Hassan M K Ghomrawi
BACKGROUND: Total knee arthroplasty (TKA) is a highly effective surgery, but is underutilized by some patient groups. This study determined factors associated with a person's expectations with respect to pain and walking function following a TKA procedure, should they elect to undergo a TKA. METHODS: A total of 3542 people were studied with or at risk of knee osteoarthritis and enrolled in the community-based Osteoarthritis Initiative (OAI). Multivariable logistic regression analyses identified demographic, socioeconomic, osteoarthritis-related, joint replacement awareness, and psychological correlates as poor outcome expectations...
November 30, 2016: Knee
https://www.readbyqxmd.com/read/27914639/actual-et-modelling-based-on-the-budyko-framework-and-the-sustainability-of-vegetation-water-use-in-the-loess-plateau
#20
Xuerui Gao, Miao Sun, Qi Zhao, Pute Wu, Xining Zhao, Wenxiang Pan, Yubao Wang
Jointly influenced by the natural factors and the artificial protection measures, the ecological environment of Loess Plateau has been significantly improved in recent years, but which has already brought about some water-related problems. To maintain the balance between precipitation and water consumption is an important foundation for sustainable development of the ecology remediation. This study used Budyko Framework to simulate the actual water consumption of 161 sub-basins from 1990 to 2014. Based on the simulation results, the research also analyzed the evolution characteristics of water balance in Loess Plateau from 1990 to 2014...
November 30, 2016: Science of the Total Environment
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