Bone Plates
Mostrando 1-12 de 84 artigos, teses e dissertações.
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1. External Auditory Canal Cholesteatoma: Clinical and Radiological Features
Abstract Introduction External auditory canal cholesteatoma (EACC) is often misdiagnosed. Objectives To outline the clinical presentation of EACC, and to describe its radiological findings on high-resolution computed tomography (HRCT) of the temporal bone. Methods The clinical records of all patients diagnosed with EACC from April 2017 to March 2020 in a
International Archives of Otorhinolaryngology. Publicado em: 2022
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2. Análise da resistência de placas ósseas de acrílico fabricadas a laser quando submetidas a diferentes forças que agem sobre o foco de fratura
RESUMO Objetivou-se com este trabalho analisar a resistência de placas ósseas de acrílico, confeccionadas com cortadora a laser CO2, quando submetidas às forças que agem sobre o foco de fratura. Foram utilizados 40 fêmures de ovinos (Ovis aries) e confeccionadas 40 placas de acrílico, os quais foram avaliados em grupos: grupo OP - foram avaliados 20 o
Arq. Bras. Med. Vet. Zootec.. Publicado em: 13/12/2019
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3. Castor polyurethane used as osteosynthesis plates: microstructural and thermal analysis
Abstract Bone fractures to be corrected need stabilization of their extremities, which is achieved with the use of plates and screws. This research aimed to produce castor bean polyurethane (Ricinus communis), to make resorbable plate, structural and thermal analysis. The production was made by the glycerolysis of the triglycerides present in the oil, after
Polímeros. Publicado em: 04/07/2019
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4. BIOMECHANICS OF BONE BLOCK GRAFT MODELS OF DIFFERENT GEOMETRY
RESUMO Objetivo: Avaliar o comportamento mecânico de enxertos ósseos em blocos com geometrias diferentes usando modelos de madeira. Métodos: Montagens com “enxertos” de perfil retangular (G1) e trapezoidal (G2), fixadas com placas de compressão dinâmica de 3,5 mm e oito orifícios, foram submetidas a ensaios não destrutivos de flexão, com a carg
Acta ortop. bras.. Publicado em: 30/05/2019
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5. Comparative Study of Function and Quality of Life in Patients with Fracture of the Tibial Plateau Operated with Locked or Conventional Plates
Resumo Objetivos Comparar resultados clínicos, funcionais e de qualidade de vida de pacientes com fratura do planalto tibial operados com placa bloqueada ou convencional e comparar os custos hospitalares dos implantes. Métodos Estudo comparativo de coortes transversal, retrospectivo, em uma série consecutiva de pacientes com fratura do planalto tibial
Rev. bras. ortop.. Publicado em: 20/05/2019
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6. HIGH TIBIAL OSTEOTOMY USING A LOCKING TITANIUM PLATE WITH OR WITHOUT AUTOGRAFTING
RESUMO Objetivo: Avaliar escores de joelho, resultados da avaliação radiológica, correção de déficits, alteração da altura patelar, tempo de consolidação óssea e tempo para apoio de peso no pós-operatório em pacientes submetidos à osteotomia tibial alta (OTA) com ou sem enxerto autólogo de osso ilíaco. Métodos: O exame retrospectivo de con
Acta ortop. bras.. Publicado em: 2019-04
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7. Proposal for a New Histological Scoring System for Cartilage Repair
OBJECTIVE: This study aimed to develop a new histological scoring system for use in a partial-thickness cartilage repair animal model. Although previous papers have investigated the regeneration of articular cartilage, the good results achieved in small animals have not been replicated in large animal models or humans, possibly because of the frequent use o
Clinics. Publicado em: 29/11/2018
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8. Bone healing after biodegradable mini-plate fixation
ABSTRACT PURPOSE: To compare bone healing in mandibular vertical body osteotomies (MVBO) after fixation with a resorbable 2.0mm-profile fixation system in the first and third postoperative months in rabbits. METHODS: Twenty hemimandibles of ten rabbits were divided into two groups according to duration of resorbable fixation-one or three months. The MVBOs
Acta Cir. Bras.. Publicado em: 2016-06
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9. Biomechanical Analysis of Locking Reconstruction Plate Using Mono- or Bicortical Screws
This experimental in vitro study evaluated the influence of screw length on the mechanical properties of a locking reconstruction plate designed with locking rings inserted into plate holes. Synthetic bone cylinders with 10 mm fracture gap and seven-hole locking reconstruction plates were used. Two groups of bone-plate constructs were assembled: Group 1 –
Mat. Res.. Publicado em: 08/04/2016
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10. Fretting corrosion tests on orthopedic plates and screws made of ASTM F138 stainless steel
Introduction Although there has been significant progress in the design of implants for osteosynthesis, the occurrence of failures in these medical devices are still frequent. These implants are prone to suffer from fretting corrosion due to micromotion that takes place between the screw heads and plate holes. Consequently, fretting corrosion has been the s
Res. Biomed. Eng.. Publicado em: 2015-04
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11. Influence of the osteosynthesis plate on ultrasound propagation in the bone
Objective: To analyze the influence of steel plates for osteosynthesis on the velocity of ultrasound propagation (VU) through the bone. Methods: The transverse coronal and sagittal velocity of ultrasound propagation underwater were measured on the intact bone and then on assemblies of the same bone with two types of osteosynthesis plates (DCP and semi
Acta ortop. bras.. Publicado em: 2014-10
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12. Mechanical analysis of femoral neck fracture fixation with dynamic condylar screw in synthetic bone
Objective: To analyze statistically results in biomechanical testing of fixation of femoral neck Pauwels type III fractures, on synthetic bone, with dynamic condylar screw (DCS) and control group. Methods: Ten synthetic bones of a national brand were used. Test Group: fixation was performed after osteotomy at 70o tilt using DCS plate with four holes. W
Acta ortop. bras.. Publicado em: 2014-10