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Registros recuperados: 12
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Successful use of autogenous bone graft for the treatment of a radius-ulna nonunion in an amputee dog Arq. Bras. Med. Vet. Zootec.
Minto,B.W.; Prada,T.C.; Marinho,P.V.T.; Zani,C.C.; Menezes,M.P.D..
Fracture nonunions represent important complications in orthopedic surgeries. Nonunion repairs or bone defects are surgically challenging. Our aim was to describe a nonunion case, which was repaired with rapid bone recovery. An 8-month-old male mixed breed dog that has been previously operated was presented to the Veterinary Medical Teaching Hospital of São Paulo State University, with a right radius-ulna nonunion and an amputated contralateral forelimb. A cancellous bone graft was collected from a partially amputated limb, in order to correct the nonunion, and used in association with a locking plate. After four weeks, the bone graft had been incorporated into the original bone. Clinical union with good weight bearing was achieved after eight weeks.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fracture; Complication; Orthopaedics; Surgery; Humerus.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352015000400979
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Tibial osteosynthesis in a guinea pig (Cavia porcellus) Arq. Bras. Med. Vet. Zootec.
Macedo,A.S.; Goulart,M.A.; Alievi,M.M.; Mombach,V.S.; Dal-Bó,Í.S.; Mucillo,M.S.; Silva,R.B.; Minto,B.W..
A guinea pig was presented with left pelvic limb lameness after unknown trauma. Radiographs revealed complete oblique diaphyseal fracture of the distal third of the left tibia and fibula. The guinea pig was treated surgically with an intramedullary pin. The day after surgery the guinea pig was using the limb comfortably (grade 1/5 lameness). Callus formation was obtained 21 days after surgery without complications.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Wild animals; Kirschner wires; Tibia; Fracture.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352015000100089
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Mechanical analysis of transversal iliac fracture stabilization using dynamic compression plate or screws and PMM in polyurethane bone model Arq. Bras. Med. Vet. Zootec.
Prada,T.C.; Shimano,A.C.; Chung,D.; Karcher,D.E.; Minto,B.W..
ABSTRACT Pelvic fractures correspond to 20 to 30 % of the fractures observed in dogs. Complete fractures, especially with bone axis deviation should be surgically treated. The mechanical study of surgical techniques is of utmost importance to assess the best way of treating these injuries. This study compared, biomechanically, the use of a dynamic compression plate (DCP) and screws (group 1) or screws and polymethylmethacrylate (PMMA) (group 2) to stabilize an iliac fracture using a static test. Sixteen canine synthetic hemi-pelvises (test specimens) with a transverse iliac osteotomy were used. After fixation with implants, a load was applied to the acetabulum until failure. Group 1 maximal compressive load was 133.9±18.60 N, displacement at yield...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pelvis; Stabilization; Biomechanical; Fracture.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000400901
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Prevalence of low trauma fractures in long-term kidney transplant patients with preserved renal function BJMBR
Braga Júnior,J.W.R.; Neves,R.M.S.; Pinheiro,M.M.; Frisoli Júnior,A.; Castro,C.H.M.; Szejnfeld,V.L.; Carvalho,A.B..
We evaluated the prevalence of low bone mineral density (BMD) and osteoporotic fractures in kidney transplantation (KT) patients and determined risk factors associated with osteoporotic fractures. The study was conducted on 191 patients (94 men and 97 women) with first KT for 3 years or more presenting stable and preserved renal function (serum creatinine levels lower than 2.5 mg/dl). KT patients were on immunosuppressive therapy and the cumulative doses of these drugs were also evaluated. BMD was determined by dual-energy X-ray absorptiometry at multiple sites (spine, femur and total body). Quantitative ultrasound of the calcaneus (broadband ultrasound attenuation, speed of sound, and stiffness index, SI) was also performed. Twenty-four percent (46) of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Kidney transplantation; Bone density; Quantitative ultrasound; Osteoporosis; Fracture.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006000100016
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Textural behavior of gels formed by rice starch and whey protein isolate: Concentration and crosshead velocities Ciência e Agrotecnologia
Silva,Thiago Novaes; Costa,Angélica Ribeiro da; Garcia-Rojas,Edwin Elard.
ABSTRACT Fabricated food gels involving the use of hydrocolloids are gaining polpularity as confectionery/convenience foods. Starch is commonly combined with a hydrocolloid (protein our polyssacharides), particularly in the food industry, since native starches generally do not have ideal properties for the preparation of food products. Therefore the texture studies of starch-protein mixtures could provide a new approach in producing starch-based food products, being thus acritical attribute that needs to be carefully adjusted to the consumer liking. This work investigated the texture and rheological properties of mixed gels of different concentrations of rice starch (15%, 17.5%, and 20%) and whey protein isolate (0%, 3%, and 6%) with different crosshead...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Young’s modulus; Fracture; Stress; Rheology..
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542017000600713
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Facial trauma in a dog: advantages of the use of computed tomography on diagnostic of caudal fractures of mandible Ciência Rural
Carvalho,Vanessa Graciela Gomes; Pinto,Ana Carolina Fonseca; Gioso,Marco Antônio; Correa,Herbert Lima; Cavalcanti,Marcelo Gusmão Paraíso.
A multiple mandible fracture was diagnosed in a mixed breed dog. After clinical examination, extra-oral radiographs were used to evaluate the trauma but, a complete visualization of the fractures extension was difficult due to the great of structures of cranium. Then, the computed tomography was accomplished to help and to find all osseous tissues fractured, their exact location, existent fragments and their positions; being superior to the radiograph exam in the accurate diagnosis realized.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Computed tomography; Facial; Trauma; Dog; Mandible; Fracture.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782006000600046
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Mechanical evaluation of bone gap filled with rigid formulations castor oil polyurethane and chitosan in horses Ciência Rural
Moreira,Rodrigo Crispim; Graaf,Guilherme Maia Mulder Van De; Pereira,César Augusto; Zoppa,André Luis do Valle De.
ABSTRACT: Often fractures of long bones in horses are comminuted and form bone gaps, which represent a major challenge for the fixation of these fractures by loss of contact between the fragments. Bone grafts help in treating this kind of fracture and synthetic materials have been gaining ground because of the limitations of autologous and heterologous grafts. In this study were performed compressive non destructive test in 10 bones with complete cross-bone gap in mid-diaphyseal of the third metacarpal bone of horses. Using a mechanism of "crossing" the 10 bones were used in the three groups (control, castor oil poliuretane and chitosan) according to the filling material. After the test with maximum load of 1000N bone had a gap filled by another material...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Equine; Fracture; Biomaterial; Strenght; Biomechanical test.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001202182
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High modulus carbon fibre composites: Correlation between transverse tensile and mode I interlaminar fracture properties ArchiMer
Baral, N; Guezenoc, H; Davies, Peter; Baley, C.
This paper presents test results from mode I interlaminar fracture and transverse tensile tests on unidirectional carbon/epoxy composites used in racing yacht construction. Fibre modulus has been varied from 380 to 640 GPa. PAN fibre reinforced composite properties, delamination resistance (G(Ie) and G(Ip)) and transverse strain to failure, decrease as fibre modulus increases. Composites based on the highest modulus pitch fibres show higher transverse failure strains than the highest modulus PAN fibre composites. A distinct failure mechanism, crack propagation within the fibres, was observed for the pitch based reinforcement. The transverse tensile tests allowed transverse fibre modulus to be estimated as 11.5 GPa for the PAN and 9 GPa for the pitch...
Tipo: Text Palavras-chave: Carbon fibre; Fracture; Deformation; Delamination; Composite materials.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/publication-3723.pdf
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Role of strain induced crystallization and oxidative crosslinking in fracture properties of rubbers ArchiMer
Le Gac, Pierre-yves; Broudin, Morgane; Roux, Gérard; Verdu, Jacques; Davies, Peter; Fayolle, Bruno.
Tensile properties and crack propagation properties, especially critical strain energy release rate in mode I, GIC, have been used to investigate fracture properties of elastomers and their relationships with microstructure. These investigations were mainly based on a series of comparisons: first, the behaviour of polychloroprene rubber (CR), undergoing stress hardening due to strain induced crystallization (SIC) and oxidative crosslinking (OCL) was compared with that of chlorinated polyethylene (CPE), which undergoes SIC but not OCL, and with a polyurethane based on hydroxyl terminated polybutadiene (PU) which undergoes OCL but not SIC. Comparisons were also made on CR between fracture behaviour at ambient temperature, where SIC occurs and at 100°C where...
Tipo: Text Palavras-chave: Fracture; Rubber; Oxidation.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00184/29546/27872.pdf
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The influence of hydrostatic pressure on the interlaminar fracture toughness of carbon/epoxy composites ArchiMer
Cartie, D; Davies, Peter; Peleau, Michel; Partridge, I.k..
The use of composites for deep sea applications requires a thorough understanding of the behaviour of these materials. While several studies have examined the influence of pressure on in-plane properties few data are available for the interlaminar fracture behaviour. This paper presents results from such tests performed in a specially designed pressure vessel mounted on a standard test machine, which allows pressures up to 1000 bars (100 MPa) to be applied during mechanical testing. Mode I and Mode 11 tests have been performed on a unidirectional IM7/977-2 carbon/epoxy composite. No effect of pressure was noted on Mode I fracture toughness. A data reduction scheme has been developed for Mode 11 loading and an increase in Glic with increasing pressure was...
Tipo: Text Palavras-chave: Fracture; Mechanical properties; Fracture toughncss.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-1680.pdf
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Impact of fillers (short glass fibers and rubber) on the hydrolysis-induced embrittlement of polyamide 6.6 ArchiMer
Le Gac, Pierre Yves; Fayolle, Bruno.
This study deals with the durability of composites based on polyamide 6.6 (PA6.6) in a humid environment, and more especially, with the loss of fracture properties. It is known that PA6.6 undergoes plasticization in the presence of water, but hydrolysis also occurs. This hydrolysis leads to a sharp decline in fracture properties in resin. The aim of this study is thus to understand the behavior of two PA6.6-based composites, one containing short glass fibers and the other both glass fibers and a rubber. The results showed the transition from ductile to brittle behavior as a function of hydrolysis time in resin. For composites, the drop in elongation breaking with the macromolecular chain length was linear for all ageing conditions considered here without...
Tipo: Text Palavras-chave: Polyamide 6.6; Hydrolysis; Fracture; Embrittlement; Reinforced plastics.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00450/56197/57755.pdf
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Minimally invasive osteosynthesis of humeral lateral condylar fracture using a condyle clamp: Case report in two dogs MV&Z
Rocha, A.G. Msc; Chung, D.G. Bsc1; Morato, G.O.; Lima, C.G.D.; Padilha Filho, J.G..
A incidência de fraturas condilares de úmero é baixa na rotina clínica de pequenos animais. Cães jovens e de pequeno porte são acometidos com maior frequência. Fraturas de face lateral do côndilo ocorrem em maior número quando comparadas à de face medial, podendo-se atribuir esta maior incidência ao menor tamanho, localização e carga relativa desta estrutura. O úmero distal possui forma complexa, e em virtude disso, seu reparo torna-se desafiador, pois compõe a porção proximal da abstrusa articulação do cotovelo. Redução e fixação fechadas são preferíveis quando possível, sendo o alinhamento anatômico e a estabilidade os desafios desses procedimentos. Tal alinhamento é necessário para que haja um apoio precoce no período pós-operatório, com mínimas chances...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Condyle clamp; Minimally invasive osteosynthesis; Fracture; Humerus; Dog lamp condilar; Osteossíntese minimamente invasiva; Fratura; Úmero; Cão.
Ano: 2013 URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/16871
Registros recuperados: 12
Primeira ... 1 ... Última
 

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