Computer Methods in Biomechanics and Biomedical Engineering
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3368
Papers 3660
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#1Diego Quexada-Rodríguez (National University of Colombia)
#2Kalenia Márquez-Flórez (National University of Colombia)
Last. Diego Alexander Garzón-Alvarado (National University of Colombia)H-Index: 13
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In-silico models applied to bone remodeling are widely used to investigate bone mechanics, bone diseases, bone-implant interactions, and also the effect of treatments of bone pathologies. This article proposes a new methodology to solve the bone remodeling problem using one-dimensional (1D) elements to discretize trabecular structures more efficiently for 2D and 3D domains. An Euler integration scheme is coupled with the momentum equations to obtain the evolution of material density at each step...
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This paper introduces an intelligent index that numerically assesses high-heeled gait deviations. Experiments were conducted on 14 young female volunteers, and the spatial-temporal gait parameters were calculated at each heel height. A type-2 fuzzy system index was built using the baseline case (barefoot). The index showed sensitivity to heel height changes. Moreover, its values divided the heel heights used in this study into three groups, depending on their effect on the gait parameters. A hig...
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#1Maximilian Melzner (Regensburg University of Applied Sciences)H-Index: 2
#2Franz Süß (Regensburg University of Applied Sciences)H-Index: 1
Last. Sebastian Dendorfer (Regensburg University of Applied Sciences)H-Index: 10
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Outputs of musculoskeletal models should be considered probabilistic rather than deterministic as they are affected by inaccuracies and estimations associated with the development of the model. One of these uncertainties being critical for modeling arises from the determination of the muscles' line of action and the physiological cross-sectional area. Therefore, the aim of this study was to evaluate the outcome sensitivity of model predictions from a musculoskeletal hand model in comparison to t...
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#1Alex G. Kuchumov (Kazan: Kazan Federal University)
#2Vasily Vedeneev (RAS: Russian Academy of Sciences)H-Index: 11
Last. Oleg Ivanov (MSU: Moscow State University)H-Index: 2
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Gallbladder disease is one of the most spread pathologies in the world. Despite the number of operations dealing with biliary surgery increases, the number of postoperative complications is also high. The aim of this study is to show the influence of the biliary system pathology on bile flow character and to numerically assess the effect of surgical operation (cholecystectomy) on the fluid dynamics in the extrahepatic biliary tree, and also to reveal the difference between 1-way and 2-way FSI al...
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#1O. V. Shatalova (Southwest Minnesota State University)H-Index: 1
#2Sergey Filist (Southwest Minnesota State University)H-Index: 2
Last. Anatoly Rybochkin (Southwestern Oklahoma State University)H-Index: 1
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The work investigates neural network model for prediction of post-surgical treatment risks. The descriptors of the risk classifiers are formed on the basis of the analysis of the current-voltage characteristics of one, two and three biologically active points. The training and verification samples were formed by examining 120 patients with a diagnosis of benign prostatic hyperplasia. Of these, 62 patients were successfully operated on (class C1), 30 had various complications after surgery (class...
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Last. Peter Augat (Paracelsus Private Medical University of Salzburg)H-Index: 70
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The amount of interfragmentary movement has been identified as a crucial factor for successful fracture healing. The aim of our study was to combine finite element analysis with a rigid body assumption to efficiently predict interfragmentary movement in fixed tibial fractures. The interfragmentary movement in a transverse tibial shaft fracture (AO/OTA type 42-A3) fixed with a locked plating construct was simulated using finite element analysis. In order to assess the contribution of the componen...
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#1Annan Li (Sichuan University)
#2Bingmei Shao (Sichuan University)
Last. Zhan Liu (Sichuan University)H-Index: 8
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Temporomandibular joint (TMJ) is an important and complex joint in the human body. It is necessary to explore the biomechanical influence on the TMJs caused by different mandibular deformities. The maxillofacial models from 34 subjects were built to analyze the maximum and minimum principal stresses of the TMJs in the control group and three test groups. The results showed that only the deviation group had statistical differences between both sides. And these mandibular deformities decreased the...
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#1Md. Abdul Raheem Junaidi (BITS: Birla Institute of Technology and Science)H-Index: 2
#2Harsha Sista (BITS: Birla Institute of Technology and Science)
Last. Alla Gopala Krishna Gokhale (Apollo Hospitals)H-Index: 1
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During surgeries, blood often oozes out of the operated tissue and this has to be sucked out by the S-I device. Blood is more viscous than saline, the cleaning fluid is used in the S-I process. Therefore, for a more comprehensive CFD flow analysis of the improved forceps is simulated in the present work for different driving pressures. The resulting flow rate of blood is compared among the prospective designs and the S-I device currently in use. The new surgical forceps eliminates re-insertion o...
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#1Heba Abdelhamid Elkayal (Pharos University in Alexandria)H-Index: 1
#2Nour Eldin Ismail (Alexandria University)H-Index: 4
Focused microwave hyperthermia is a technique with advantage of high accuracy and low side effects for breast tumor treatments. In this study, an efficient focusing technique for noninvasive microwave hyperthermia treatment for breast tumors is presented. Particle Swarm Optimization (PSO) is used to find the optimum excitations (phases and amplitudes) of a three dimension (3D) Micro-Strip Patch (MSP) antenna array operating at 2.45 GHz. The antenna excitations are optimized to maximize the power...
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#1Fernanda Benevides (UFPE: Federal University of Pernambuco)
#2Renata Cimões (UFPE: Federal University of Pernambuco)H-Index: 8
Last. Bruna de Carvalho Farias Vajgel (UFPE: Federal University of Pernambuco)H-Index: 2
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Finite element analysis was used to compare the effect of different implant lengths on atrophic mandible with full-arch fixed prostheses. Four models were constructed with different implant lengths: 4, 6, 8 and 10 mm. A 100-N occlusal load was applied. The stress at the bone level, implant, and prosthetic components were obtained. Similar behavior was observed for all groups, except for 4 mm, which showed more discrepant values ​​for all prosthetic components. Although longer implants presented ...
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