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Search Results: 1 - 10 of 298588 matches for " Amancio Ramalho Júnior "
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Apresenta??o de um novo dispositivo para mensura??o do angulo de tor??o da perna
Lawand, Sérgio José;Ramalho Júnior, Amancio;Smith, Ricardo Luiz;
Acta Ortopédica Brasileira , 2004, DOI: 10.1590/S1413-78522004000200001
Abstract: variations and deformities of lower limbs involving rotation in the transverse plane are associated with many clinical problems, ranging from harmless in-toing in children to disabling degenerative osteoarthritis of the knee in adult patients. while the bone alterations located in the transverse plane are difficult to be assessed, the frontal and sagittal deformities can be easily assessed , for instance, with the conventional radiographies. in this context, among the most available methods for the leg rotational study, there is not any clinical or image procedure which is more accurate, practical or with low cost. in order to solve this problem, the authors present a new device to indirect clinical standard of the leg torsion angle in adults and children. in this study, 40 lower limbs from human cadavers were assessed and analyzed.
Apresenta o de um novo dispositivo para mensura o do angulo de tor o da perna
Lawand Sérgio José,Ramalho Júnior Amancio,Smith Ricardo Luiz
Acta Ortopédica Brasileira , 2004,
Abstract: Varia es rotacionais dos membros inferiores no plano transverso s o responsáveis por um grande número de doen as que acometem crian as e indivíduos adultos. Nas crian as, podemos citar como exemplo, um quadro comum, a marcha com os "pés para dentro" ("toeing in") e nos indivíduos adultos, a incapacitante artrose degenerativa dos joelhos. Enquanto as altera es ósseas localizadas no plano transverso s o difíceis de serem avaliadas, as deformidades presentes nos planos frontal e sagital podem ser avaliadas facilmente através, por exemplo, de simples radiografias. Neste contexto, dentre os métodos disponíveis para o estudo rotacional da perna, n o há procedimento clínico ou de imagem que reúna as características de precis o, praticidade e baixo custo. Com o intuito de preencher esta lacuna, os autores apresentam um dispositivo para aferi o clínica indireta do angulo de tor o da perna para indivíduos adultos e crian as. Neste artigo, procedeu-se a avalia o e a análise de 40 membros inferiores de cadáveres adultos humanos.
Two-dimensional analysis of gait asymmetry in spastic hemiplegia
Marise Bueno Zonta,Amancio Ramalho Júnior,Regina Maria Ribeiro Camargo,Fabiano Hessel Dias
Einstein (S?o Paulo) , 2010,
Abstract: Objective: Simple measures of gait for routine clinical use could be useful when the complex gait analysis systems are not available. The aim of this study was to quantify asymmetry in children with spastic hemiplegia using a two-dimensional gait analysis by videography and to relate the asymmetry to motor function. Methods: Twenty-four children with spastic hemiplegia (19 males, 5 females; mean age 49 months [SD 5 months], range from 39 to 60 months) were assessed with a two-dimensional gait analysis by videography and the analyzed parameters were compared with normal values and with clinical and functional data. Results: There were significant differences in swing time (p = 0.002), stance time (p = 0.01) and stance/swing time ratio (p < 0.001). The comparison with the normal values described by Sutherland also demonstrated gait asymmetry. There was no direct relationship between the motor function and asymmetry but a score analysis for specific Gross Motor Function Measure items could quantify it in terms of age of gait acquisition. Children with more adequate muscle tone presented longer stance time in the involved limb than those with more spasticity (p = 0.03). Conclusions: These results suggest that the best performance is associated with the smallest asymmetry in this sample. Although two-dimensional gait analysis does not provide as much data as three dimensional gait analyses, we believe it can contribute significantly to the gait assessment of children with cerebral palsy.
Experimental evaluation of 3-dimensional kinematic behavior of the cruciate ligaments
Garbelotti Júnior, Silvio Antonio;Pelozo Júnior, Osvaldo;Caldana, Rogério Pedreschi;Ramalho Jr, Amancio;Smith, Ricardo Luiz;
Clinics , 2007, DOI: 10.1590/S1807-59322007000500014
Abstract: purpose: the purpose of this study was to evaluate a low-cost and easily reproducible technique for biomechanical studies in cadavers. in this kind of study, the natural effect of loading of the joint and shear forces are not taken into account. the objective is to describe the plastic deformation of the ligaments into 3-dimensional space. method: for 18 intact human cadaver knees, the cruciate ligaments were divided into 3 fiber bundles, the tibial or femoral fixation points were marked, and 2 perpendicular different x-ray exposures were performed, thus obtaining radiographs of spatial projections of the bundle in 3 anatomic planes (frontal, sagittal, and transversal). from the measurements made on the x-ray films, we obtained the average distance between the 2 fixation points of the cruciate ligaments on the tibia and the femur at 4 different flexion angles. results: the distance between the fixation points of the medial and lateral fiber bundles of the cruciate ligaments did not change significantly during movement. there were, however, significant variations (p < .05) in the distance between the fixation points of the posterior fiber bundles of the anterior cruciate ligament and the anterior fiber bundles of the posterior cruciate ligament. conclusions: this technique was efficient for demonstrating the plastic deformability of the cruciate ligaments. the results proceeding from this type of study can assist in the planning of physical rehabilitation programs.
BI-RADS?-ultra-som: vantagens e desvantagens dessa nova ferramenta de trabalho
Camargo Júnior, Hélio Sebasti?o Amancio de;
Radiologia Brasileira , 2005, DOI: 10.1590/S0100-39842005000400013
Abstract: the author presents a critical analysis of the recently published bi-radstm system. the first recommendation is to always determine if bi-radstm is being used for mammography, ultrasound or magnetic resonance by using the term bi-radstm-us or a similar term. the advantages of using the bi-radstm-us including reproducibility, standardization, auditing, basis of echogenicity are also considered. in addition, some drawbacks of the system are identified: the omission of statistically significant proven descriptors such as marked hypoechogenicity and number of lobulations, the use of non-recognized descriptors such as the cooper ligament, and the lack of data on the positive predictive value of some very common breast lesions such as hypoechoic nodules. finally, a suggestion is presented: to classify the descriptors according to its importance as predictors in order to determine the positive predictive value of the lesions.
Carta ao Editor
Camargo Júnior Hélio Sebasti?o Amancio de
Radiologia Brasileira , 2002,
Abstract:
Gravidez ectópica na cicatriz uterina de cesárea: relato de caso
Arruda, Maurício de Souza;Camargo Júnior, Hélio Sebasti?o Amancio de;
Revista Brasileira de Ginecologia e Obstetrícia , 2008, DOI: 10.1590/S0100-72032008001000007
Abstract: ectopic pregnancy in a cesarean scar is the rarest form of ectopic pregnancy and probably the most dangerous one because of the risk of uterine rupture and massive hemorrhage. this condition must be distinguished from cervical pregnancy and spontaneous abortion in progress, so that the appropriate treatment can be immediately offered. since the advent of endovaginal ultrasonography, ectopic pregnancy in a cesarean scar can be diagnosed early in pregnancy if the sonographer is familiarized with the diagnostic criteria of this situation, especially in women with previous cesarean scar. here we describe a case of ectopic pregnancy in a cesarean scar in which the diagnosis was considerably late, with presentation of spontaneous regression.
Características morfofisiológicas associadas à qualidade de mudas de Eucalyptus urophylla produzidas em diferentes substratos
Oliveira Júnior, Orlando Amancio de;Cairo, Paulo Araquém Ramos;Novaes, Adalberto Brito de;
Revista árvore , 2011, DOI: 10.1590/S0100-67622011000700003
Abstract: it was evaluated in this study the effects of different combinations of substrates on the morphologic and physiological characteristcs related to the quality of eucalyptus urophylla seedlings. the experiment was conducted in a a forest nursery on the sun, in which seedlings were produced in 54 cc tubes and irrigated by micron aspersion. it was used a complete random experimental design with 12 treatments and four replicates. treatments were based on the following combinations of substrate: two commercial substrates (vivatto slim plus and mecplant), manure, coconut bark powder, vermiculite, and a mixture substrate used by a forest company. osmocote, a mineral fertilizer which has a controlled npk supply, was added into all treatments. the following characteristics were evaluated: root regeneration potential (rrp); total seedling growth (tsg); growth speed index (gsi), dickson quality index (iqd), and spad index. overall, the best results were obtained in treatments with coconut bark powder and manure. concerning seedling quality, iqd values were almost always positively associated to rrp, except the 100% vivatto slim plus substrates which showed lower rrp. the highest means of spad indexes were obtained from the combination of 40% manure, 20% coconut bark, and 40% vermiculite. the combination of 70% manure and 30% coconut bark powder provided seedlings production with the highest values of rrp, which presented superior quality than the other substrates combination, based on the evaluated characteristics.
Pathophysiological mechanisms of blindness in facial trauma: A review  [PDF]
André Luis Ribeiro Ribeiro, Adriana Maria Melo dos Reis, Driene Góes Ramalho, Sérgio de Melo Alves Júnior, Jo?o de Jesus Viana Pinheiro
Open Journal of Stomatology (OJST) , 2013, DOI: 10.4236/ojst.2013.32032
Abstract:

Blindness is a serious complication that can occur after facial trauma and may represent the loss of one of the most useful senses in the human relationship with the world—the sight. This study aims to review the pathophysiology of blindness related to facial trauma in order to identify the mechanisms by which it develops and to recognize the signs and symptoms required to establish proper diagnosis and treatment. Blindness following facial trauma may occur due to mechanisms that involve injury to the eyeball, optic nerve and eyelids. The leading causes of blindness resulting from facial trauma, and which may be altered by medical interference, are related to retrobulbar hemorrhage and traumatic optic neuropathy, which require extremely rapid diagnosis and can be accomplished with the resources available in most trauma-based emergency services. The authors conclude that loss of vision tends to be irreversible in direct eyeball and optic nerve lesions, but can be prevented in retrobulbar hemorrhage and traumatic optic neuropathy. Eyeball and, especially, sight accuracy evaluation should be included in the initial care of trauma patients, so that the lesions that might lead to loss of vision are diagnosed and treated early.

Avalia??o de um dispositivo portátil para biópsia vácuo-assistida de microcalcifica??es mamárias
Camargo Júnior, Hélio Sebasti?o Amancio de;Camargo, Márcia Martos Amancio de;Teixeira, Sandra Regina Campos;Azevedo, Juliana;Arruda, Maurício de Souza;
Radiologia Brasileira , 2010, DOI: 10.1590/S0100-39842010000200011
Abstract: objective: vacuum-assisted biopsy is the percutaneous technique of breast biopsy with the lowest underestimation rate. however, the cost of such procedure is high and currently there is a considerable interest in developing less expensive techniques. the present study was aimed at testing a less expensive device for vacuum-assisted biopsy of breast microcalcifications. materials and methods: thirty-five patients with clustered microcalcifications classified as bi-rads? 4 or 5 were submitted to biopsy. collected specimen appropriateness, difficulties in the reinsertion of the cannula and number of biopsy passes were evaluated. results: successful specimens collection was achieved in all of the patients. histo-radiological disagreement, difficulties in the cannula reinsertion or severe complications were not observed. conclusion: the authors conclude that the method is effective in terms of specimens appropriateness and cost-benefit ratio as compared with of biopsy techniques for breast microcalcifications. such findings are compatible with data reported in the literature.
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