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Search Results: 1 - 10 of 238665 matches for " Cássio Ricardo Auada;Ito "
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Extens?o máxima de retalho pediculado de omento maior através de túnel subcutaneo para ossos longos em c?es
Ito, Kelly Cristiane;Ferrigno, Cássio Ricardo Auada;Alves, Flávio Rocha;
Ciência Rural , 2010, DOI: 10.1590/S0103-84782010005000020
Abstract: it's known for long time hat the human omento can promote angiogenic activity in adjacent structures in which it is applied. in veterinary medicine, there is little research with greater omentum flap as angiogenic and immunogenic inductor, however, their adhesion properties and drainage are well known. this study wondered whether if the greater omentum can be used as angiogenic inductor in bone fractures, and therefore increase osteogenenic rates and decreasing bone infection. initially it was designed an experimental study which aimed to obtain a greater omentum pedicle flap and conduct it so long as possible through a subcutaneous defect in order to reach long bones (femur, tibia, humerus, radius/ulna). for the experiment it was used 30 dogs cadavers of all breeds, except condrosdistrophics breeds. the results were conclusive and confirmed the possibility of reaching the omentum flap for long bones. all the animals had reached the distal half of the evaluated bones. results were satisfactorily accomplished and in 100% of the cases the flap reached the distal half of the evaluated bones. the averages of the different flap length were: 30.87cm when double layer was used; 54.37cm in simple layer; and 92.7cm when the flap was built in l. the maximum length of the omentum has secured the possibility of reaching the distal metaphases of all the bones studied. the average length exceeded 29.87cm to femur, 20.73cm to tibia/fibula, 25.13cm to humerus, and 16.27cm to radius/ulna. the flap length variety statistically evaluated showed moderate positive correlation on the presented individuals. it was concluded that the omentum pedicle flap can be taken through the subcutaneous defect until the distal metaphase of the long bones of dogs cadavers without tension. animals with high corporal weight have the biggest l flap length.
Retalho de omento maior para indu??o de vasculariza??o e consolida??o óssea em c?o
Ferrigno, Cássio Ricardo Auada;Ito, Kelly Cristiane;Caquias, Daniela Fabiana Izquierdo;Mariani, Tatiana Casimiro;Nina, Marcos Ishimoto Della;Ferraz, Vanessa Couto de Magalh?es;Cunha, Olicies da;Romano, Leandro;
Ciência Rural , 2010, DOI: 10.1590/S0103-84782010000900029
Abstract: this research reports the case of a whippet female dog, 10 years old, with delayed union of left tibia and fibula, exposure of the fracture focus with localized infection, and extensive loss of, muscle, bone and skin after instability caused by two surgical interventions accomplished previously. a flap was made of the greater omentum in a single layer. the fracture site was reached through the subcutaneous tunnel and the coating by mesh skin grafts. the objective of this study was to evaluate the ability of the larger omentum to induce angiogenesis to the fracture site and the subsequent bone healing, considering the strong role of angiogenesis. the left tibia and fibula were stabilized with external circular fixator. after 80 days there was bone healing of the tibia around the support member and removal of the implant. postoperative complications included partial necrosis of the cutaneous (25%) flap and shortening of the tibia with consequent laxity ligament of the member.
Resposta inflamatória causada pelas fra??es do adesivo de gelatina-resorcina e formaldeído (Colagel?) em camundongos
Campos, Andressa Gianotti;Ferrigno, Cássio Ricardo Auada;Boccia, Jo?o Paulo;Xavier, José Guilhherme;
Ciência Rural , 2000, DOI: 10.1590/S0103-84782000000500016
Abstract: the use of glue for biological purposes has been under study for a long time, an example is the adhesive composed of gelatin-resorcine and formaldehyde (colagel?). the inflammatory reaction produced by the application of the adhesive on organic tissues encouraged the search for the component of the glue responsible for this reaction. thus, the application of several fractions of the referred adhesive (gelatin-resorcine, formaldehyde, polymerized glue in situ and polymerized glue before the application) was accomplished in different groups of mice in the following periods: 2, 10, 30 and 60 days after surgery. through the evaluation of histological sections, it was observed that all the groups presented, with different degrees of intensity, inflammatory polimorfonuclear infiltrate with a predominance of neutrophils. the group which received only the formaldehyde was the one that expressed a greater tissue reaction with a great amount of inflammatory infiltrate, dissociation of muscle fibers, angiogenesis and fibrosi. there was also great amount of infiltrate as a reaction to the polymerization in situ, adding to it intense fibrogenesis of the deep dermis and hypoderm, together with the degeneration of miocites and extensive areas of tissue necrosis. the group that received only the gelatin-resorcine reveled discrete polimorfonuclear infiltration, the same results occurred after the use of the glue previously polymerized. therefore, the fraction of the colagel? responsible for the greater inflammatory reaction was the polymerizing formaldehyde when it was applied to the tissue alone or polymerized in situ. the polymerization before the application turns the colagel? less irritating to the tissue, therefore, this is the most convenient way of utilization.
Utiliza??o dos subprodutos da fresagem do osso subcondral em substitui??o ao enxerto autólogo esponjoso em artrodeses de carpo de c?es
Ferrigno, Cássio Ricardo Auada;Schmaedecke, Alexandre;Ferraz, Vanessa Couto de Magalh?es;
Ciência Rural , 2008, DOI: 10.1590/S0103-84782008000200015
Abstract: pancarpal arthrodesis is an extreme procedure, used in the treatment of fractures and carpal luxations, with damage to the palmar fibro cartilage and structural ligaments, after hyperextension. for this study 15 dogs were selected, which underwent pancarpal artrodesis, betwen april/ 2002 and july/ 2004. the cases were studied in regard to bone formation and post-surgical complications. the technique consisted in the ostectomy of the articular surface of the radius, exposing and rectifying it. the byproducts of this reaming were introduced as a graft after their size reduction, with a grinder. in all cases, compressive plates were used for the articular stabilization. immediately after surgery, radiographic exams were made and in 30 days intervals, until complete articular fusion. the results from this study, with articular fusion before 300 days after surgery in 80% of the cases, were extremely similar to the ones observed with techniques that use autologous cancellous bone grafts, and 68% of the patients recovered without significant complications. small complications like slight swelling were observed in 22% of the cases, not determining any alterations in the final result. these results show that the technique is viable, demonstrating the possibility of use of the byproducts of subchondral bone reaming as a graft in the arthrodesis of dogs.
Prótese total articulada de joelho utilizada no tratamento de osteossarcoma apendicular em c?o
Ferrigno, Cássio Ricardo Auada;Campos, Andressa Gianotti;Stopiglia, ?ngelo Jo?o;Fantoni, Denise Tabacchi;
Ciência Rural , 2008, DOI: 10.1590/S0103-84782008000800047
Abstract: this report describes the surgical technique, instrumentation and results of complete substitution of portion distal of the femur and knee articulation to prosthesis, in a dog with bone tumor in distal left femur. the prosthesis was made of steel, and composed by three articulated components with the goal of maintaining range of motion as a normal knee movement. the femoral and tibial prosthesis portions were fixed to the respective bones during the surgery, after femural and tibial plato ostectomy. the patient received six doses of adjuvant chemotherapy, composed by doxorrubicin monthly alternated with carboplatin. at six days after surgery the dog developed neuropraxy and non-weight bearing lameness. at 10 days the dog started to mild use of the limb and at 30 days it was more effective, but the extension of the stifle range was reduced by 100° because of the fibrosis and muscle contracture on the popliteal fossa. at one year, this angle didn't improve but the dog continued to bear weight on the limb. at 425 days, the dog had died by renal failure. at this time, there was no evidence of local recurrence or distant metastasis, but the necropsy was declined by the owner, impairing the collection of more data. in conclusion, the replacement of total knee and half of the femur in dogs is possible and viable, but further study is warranted in order to obtain better technique and specific instrumentation, to attain better surgical outcomes.
Avalia??o do uso de haste bloqueada e bloqueio transcortical no reparo de fraturas diafisárias de fêmur em felinos
Romano, Leandro;Ferrigno, Cássio R. Auada;Ferraz, Vanessa C. Magalh?es;Della Nina, Marcos Ishimoto;Ito, Kelly Cristiane;
Pesquisa Veterinária Brasileira , 2008, DOI: 10.1590/S0100-736X2008000400002
Abstract: interlocking nails allow rigid fracture stabilization and present biomechanical advantages when compared to other immobilization techniques. it acts along the central mechanical axis of the bone and preserves biological concept standards for osteosynthesis. the use of interlocking nail in cats is limited because the intramedullary space is relatively small for the available nail sizes. we reported 10 cases of cats that had simple or multiple closed fractures of the femoral diaphysis. the animals weighed 3.5 to 5 kg , which allowed using nails of 4.0mm and 4.7mm in diameter. for the nail insertion, retrograde and normograde routs were used, and four 2mm titanium screws were used to lock all the perforations. no trans-surgical complication occurred, however, due to a new trauma, one of the animals suffered femoral neck fracture and transversal distal fracture to the nail, three days after surgery. radiographies were made up to four months after surgery, and in most cases secondary bone formation was seen, showing bone consolidation in 61-89 days, excluding the animal who suffered new trauma, who presented bone healing in 150 days. clinically, occasional lameness occurred; however, except for the animal that had new trauma, all animals initiated adequate limb support in 3 to 8 days after surgery. in conclusion, the use of 4.0mm and 4.7mm interlocking nails in felines was adequate, with bone healing in all cases, and also return of good limb function after surgery.
Análise biomecanica do joelho íntegro e com ruptura do ligamento cruzado cranial quanto ao grau de deslocamento cranial e rigidez articular em c?es
Romano, Leandro;Pereira, Cezar Augusto Martins;Schmaedecke, Alexandre;Saut, Jo?o Paulo Elsen;Ferrigno, Cássio Ricardo Auada;
Acta Cirurgica Brasileira , 2006, DOI: 10.1590/S0102-86502006000100011
Abstract: purpose: to analyse the biomechanical function of the knee joint in dogs, comparing the cranial translation degree and articular stiffness of the tibia in relation to the femur, in normal joints and joints with rupture of cranial crucial ligament. methods: ten mongrel dog knees were analyzed, weighting more than 20 kg. biomechanical analysis to the cranial translation degree of the knee joint with normal cranial cruciate ligament and surgically sectioned was made. mechanical assays was realized by kratos 5002 machine, and recorded in real time the parameters of force (n) and translation/deformation, in mm. the assay had consisted in to use a force(n) registering the cranial translation. results: to the normal knee, the deslocation media founded after 3 repetitions was 3,39 ; 3,47; 3,53. to the knee with surgical section was 12,96; 13,24; 13,34. the statistical analysis reveled significant diference between groups to the cranial tranlation e articular stiffness (p<0,05). conclusion: these study allows to conclude that the cranial translation is added in four times and the articular stiffness is reduced one and a half times when statistically compared.
Estudo crítico do tratamento de 196 casos de fratura diafisária de rádio e ulna em c?es
Ferrigno, Cássio Ricardo Auada;Schmaedecke, Alexandre;Patané, Christian;Baccarin, Daniel Castelo Branco;Silveira, Lucia Maria Gedes;
Pesquisa Veterinária Brasileira , 2008, DOI: 10.1590/S0100-736X2008000800004
Abstract: the results from three osteosynthesis methods in cases of proximal, mid and distal fractures of radio and ulna in dogs were compared: the skeletal external fixation, plates and screws and the external immobilization. shaft fractures of radius and ulna in dogs are frequent among the orthopedic morbid cases in veterinary medicine and their treatment deserves special attention, due to the high number of unsuccessful cases observed. the demographic data with reference to distribution and classification of fractures, as well as the method used for osteosynthesis and its consequences, were tabulated and the data were statistically compared. as results, from the 196 fractures observed, patients with up to 6.0 kilograms were the most affected (46.4%) with lesions mainly in the distal third (64.93% of the fractures). animals that have been operated with smaller interval between the fracture occurrence and the surgery showed better results. there was a significant difference between osteosynthesis by external fixators and screwed plates when compared to external immobilization, independent on the fracture site.
Ultra-som pulsado de baixa intensidade em fraturas diafisárias: aplica??o clínica em c?es
Sousa, Valéria Lima de;Alvarenga, José de;Padilha Filho, Jo?o Guilherme;Canola, Júlio Carlos;Ferrigno, Cássio Ricardo Auada;Alves, José Marcos;Duarte, Luiz Romariz;
Ciência Rural , 2008, DOI: 10.1590/S0103-84782008000400019
Abstract: the effects of ultrasound stimulation on bone healing have been demonstrated in experimental and clinical studies. the purpose of this study was to investigate the clinical application of low-intensity pulsed ultrasound as an adjuvant for the treatment of diaphyseal fractures in dogs. sixteen dogs of different breeds, ages ranging from seven months to six years, weighing from 2.5 to 43kg, were enrolled in the study. all dogs presented fresh closed diaphyseal fractures in the radius and ulna, femur or tibia and fibula stabilized with osteosynthesis techniques (intramedullary pinning, external skeletal fixation or the combination of both). the dogs were divided into two groups: stabilized fractures treated by low-intensity ultrasound (treatment group, n=8); stabilized fractures not treated by ultrasound stimulation (control group, n=8). the animals were assessed by means of clinical examination and radiographic studies in the preoperative period, immediate postoperative period, and every 30 days after the surgical procedures. the treatment was performed using stationary low-intensity (30mw cm-2) pulsed ultrasound (sine wave signal of 1.5mhz frequency, 200μs pulse width and 1khz repetition frequency) on the fracture site. ultrasound therapy was carried out 20 minute per day, for 21 consecutive days, starting between the 1st and the 9th postoperative day. the student?s t test was used for the statistical analysis and showed a significant difference (p<0.001 and a=0.05) between the mean time for bone healing of the animals in the treatment group (mean of 67.5 days) and that of animals in the control group (mean of 106 days). this protocol of ultrasound stimulation promoted clinical and radiographic signs of bone healing acceleration in the treated fractures. the results of this study suggest that low-intensity pulsed ultrasound may be indicated as an adjuvant therapy in fresh diaphyseal fractures in dogs.
Plasma rico em plaquetas combinado a hidroxiapatita na forma??o do calo ósseo em fraturas induzidas experimentalmente no rádio de c?es
Silva, Silmara Bonomi da;Ferrigno, Cássio Ricardo Auada;Sterman, Franklin de Almeida;Baccarin, Daniel Castelo Branco;Yazbek, Karina Veloso Braga;Muramoto, Caterina;Amaku, Marcos;
Ciência Rural , 2007, DOI: 10.1590/S0103-84782007000400020
Abstract: the present study was aimed at evaluating the effects of autologous platelet-rich plasma (prp) in combination with unabsorbable hydroxyapatite on bone callus formation in an experimental canine diaphyseal radius fracture stabilized with bone plate. eight mature, male and female mongrel dogs were selected weighed 5 to 15kg. bone defects were created, bilateral, in both radii diaphysis, corresponding to 25% of bone diameter. on the right radius (group ha/prp), the defect was filled with prp and hydroxyapatite. on the left radius (group ha), was placed hydroxyapatite alone. prp was obtain by a simplified technique using a laboratory centrifuge. clinical evaluations, bone formation and bone density by use of radiographic and optical densitometry, were compared between group ha/prp and group ha after 15, 30, 45 and 60 days post surgery. the radiographic and densitometric study did not indicate a significant difference in the bone callus formation between the groups (p>0.05). in the present study the autologous prp in combination with unabsorbable hydroxyapatite could not accelerated the bone callus in comparison with hydroxyapatite alone.
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