Fracture Model
Mostrando 1-12 de 161 artigos, teses e dissertações.
-
1. Ring Fracture of Brazilian Aortic Valve Bioprostheses Using Non-Compliant High-Pressure Transcatheter Balloon, an Ex Vivo Test
ABSTRACT Introduction: Aortic valve bioprostheses ring fracture in valve-in-valve procedures has shown low complication rates and presents as an option in the treatment of patients at high risk for conventional surgery, avoiding high transvalvular gradients, which are associated with increased mortality. Some prostheses available in the market cannot be fra
Brazilian Journal of Cardiovascular Surgery. Publicado em: 2022
-
2. Risk factors associated with treatment of hyperactive postoperative delirium in elderly patients following hip fracture surgery under regional anesthesia: a nationwide population-based study
Abstract Background and objectives: Delirium is common but is frequently undetected by clinicians, despite the fact that it can be life-threatening. This study aimed to identify the incidence of delirium and the preoperative factors associated with perioperative use of drugs to treat hyperactive delirium in elderly patients who underwent hip fracture surger
Brazilian Journal of Anesthesiology. Publicado em: 2022
-
3. FEM-DEM simulation of Uniaxial Compressive Strength (UCS) laboratory tests
Abstract Finite/discrete element methods (FDEM) are hybrid numerical models that use algorithms to analyze the transition from continuous to discontinuous. This type of formulation allows modeling physical laboratory tests with greater proximity to reality. This article proposes to simulate the average behavior of a uniaxial compression test campaign. The te
REM, Int. Eng. J.. Publicado em: 2020-12
-
4. Printing 3D models of canine jaw fractures for teaching undergraduate veterinary medicine
Abstract Purpose To develop 3D anatomical models, and corresponding radiographs, of canine jaw fractures. Methods A base model was generated from a mandibular bone scan. With this model it was possible to perform fracture planning according to the anatomical location. Results The 3D base model of the canine mandible was similar in conformation to the n
Acta Cir. Bras.. Publicado em: 05/12/2019
-
5. Adhesiveness of bulk-fill composite resin in permanent molars submitted to Streptococcus mutans biofilm
Abstract: The aim of the present study was to evaluate the microtensile bond strength and the microleakage of a bulk-fill composite resin compared with a conventional incremental composite resin, in permanent molars and under cariogenic challenge using a Streptococcus mutans model. Permanent human third molars (n = 60) with an occlusal cavity of 5×3×2 mm w
Braz. oral res.. Publicado em: 02/12/2019
-
6. Avaliação dos processos de fratura em filmes finos através da simulação de ensaios de indentação com penetradores esféricos
RESUMO Recentes trabalhos propõem a utilização dos ensaios de indentação como uma ferramenta capaz de avaliar características mecânicas de filmes finos, assim como avaliar possíveis falhas em sistemas que conjugam filmes de alta dureza depositados em substratos metálicos em solicitações tribológicas. Entretanto, a implementação da técnica de i
Matéria (Rio J.). Publicado em: 25/11/2019
-
7. Photogrammetry and 3D prototyping: A low-cost resource for training in veterinary orthopedics
RESUMO: A prototipagem rápida (PR) é uma tecnologia inovadora que permite obter o protótipo de um molde com rapidez e precisão a partir de um modelo virtual. Esse estudo objetivou estabelecer o uso da fotogrametria e prototipagem 3D para a produção de biomodelos de ossos da espécie canina, para treinamento em técnicas ortopédicas em Medicina Veteri
Cienc. Rural. Publicado em: 25/11/2019
-
8. Seasonal variation of femoral fractures in the state of São Paulo, Southeast Brazil
ABSTRACT OBJECTIVE To examine the effect of seasonality on femoral fracture incidence among people residing in the state of São Paulo, Brazil. METHODS Ecological study based on a consecutive series of 216,348 reports of hospital admissions caused by femoral fractures. A Bayesian statistical model was used for time series analysis, considering the monthl
Rev. Saúde Pública. Publicado em: 15/08/2019
-
9. Biomechanical Analysis of Two Types of Humerus Supracondylar Fracture Fixation in Anatomical Model
Resumo Objetivo Analisar através de ensaios mecânicos a estabilidade da fixação da fratura supracondiliana do úmero com dois fios de Kirschner, intramedular e lateral (Fi), comparada à fixação com dois fios laterais paralelos (FL) em modelos anatômicos, de forma a se definir qual configuração apresenta maior estabilidade. Métodos Foram utiliz
Rev. bras. ortop.. Publicado em: 29/07/2019
-
10. Biomechanical development and evaluation of a new framework for all-on-four rehabilitation
Resumo Introdução Para reabilitação de mandíbulas totalmente edêntulas, a opção por carga imediata determina a utilização de próteses provisórias que esplintem os implantes instalados. Apesar de provisórias com reforço proverem as reabilitações com benefícios biomecânicos, a não adoção desta indicação coexiste em diferentes estudos so
Rev. odontol. UNESP. Publicado em: 29/07/2019
-
11. Effect of Annealing Process on the Microstructures and Mechanical Properties of AZ31B/A356 Composite Plate Fabricated by Cast Rolling
The effect of annealing process on the microstructures and mechanical properties of Mg/Al composite plates fabricated by cast-rolling was investigated in this study. The results show that the interfacial transition zone can be divided into three regions: a Mg transition region, an Al transition region, and an intermediate region, respectively. The microhardn
Mat. Res.. Publicado em: 10/07/2019
-
12. Two-Dimensional Numerical Model of the Fracture Process in Steel Fibre Reinforced Concrete with the Continuum Strong Discontinuity Approach and Functional Data Analysis
Abstract This paper presents the formulation of a two-dimensional numeri-cal model able to describe the fracture process in structural mem-bers of steel fibre reinforced concrete (SFRC) from the volume ratio of the fibres and the mechanical properties of the compo-nents: a concrete matrix and a set of steel fibres with a random orientation. The relationship
Lat. Am. j. solids struct.. Publicado em: 08/04/2019