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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Influência do posicionamento da placa de Puddu sobre a inclinação Posterior do planalto tibial, pós-osteotomia valgizante no terço proximal da tíbia = estudo clínico retrospectivo / The influence of the Puddu plate positioning on the posterior inclination on the tibial plateau, after opening-wedge high tibial osteotomy : retrospective clinical trial

Ferreira, Daniel Bechara Jacob 18 August 2018 (has links)
Orientador: João Batista de Miranda / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Ciências Médicas / Made available in DSpace on 2018-08-18T13:37:30Z (GMT). No. of bitstreams: 1 Ferreira_DanielBecharaJacob_M.pdf: 1620645 bytes, checksum: 6452df17927d464b10dd8a697e2a2126 (MD5) Previous issue date: 2011 / Resumo: Introdução: A osteotomia valgizante no terço proximal da tíbia é considerada um método confiável para o tratamento de pacientes jovens com osteoartrite medial do joelho, associado a alinhamento em varo. Entretanto, procedimentos realizados para a correção de desalinhamentos no plano frontal podem alterar o alinhamento do plano sagital. Vários fatores estão relacionados ao aumento da inclinação posterior do planalto tibial pós-osteotomia valgizante no terço proximal da tíbia. Hipótese: O posicionamento posterior da placa-calço está relacionado com menor alteração da inclinação posterior do planalto tibial. Modelo do estudo: Estudo clínico retrospectivo. Métodos: Foram realizadas 42 osteotomias entre abril de 2007 e agosto de 2008. Imagens radiográficas em perfil do joelho foram obtidas no pré-operatório e no pós-operatório recente. Determinou-se o ângulo formado entre a tangente do planalto tibial medial e uma linha perpendicular ao eixo da cortical posterior da tíbia por medidas goniométricas manuais, antes e após cirurgia. Determinou-se também a posição relativa da placa-calço em relação à cortical posterior da tíbia. Resultados: Houve aumento de aproximadamente 34% no valor da inclinação posterior do planalto tibial após a cirurgia, com a média subindo de 7,6° para 10,2° (p = 0,0006). Existe correlação entre o ângulo de inclinação do planalto tibial pré-operatório e o seu valor pós-cirúrgico (r = 0,4131 e p = 0,0065). A posição relativa e o tamanho do implante não influenciaram as alterações do alinhamento sagital. Conclusão: Nesta população amostral houve aumento estatisticamente significativo da angulação da superfície articular tibial proximal, no plano sagital, após osteotomia valgizante no terço proximal da tíbia. O posicionamento posterior da placa-calço não foi relacionado a um menor aumento desta angulação / Abstract: Background: The high tibial osteotomy is considered a reliable method for the treatment of young patients with medial knee osteoarthritis associated with varus alignment. However, procedures performed to correct misalignments in the frontal plane can change the alignment of the sagittal plane. Several factors are related to the increase in the posterior inclination of the tibial plateau after high tibial osteotomy. Hypothesis: The posterior positioning of the Puddu plate causes less alteration of the posterior inclination of the tibial plateau. Study design: Retrospective clinical trial. Methods: Forty-two opening-wedge high tibial osteotomies were carried out. Lateral radiographic images of the knee were obtained preoperatively and right after surgery. The angle between the tangent of the medial tibial plateau and a line perpendicular to the axis of the posterior tibial cortex was determined by manual goniometric measurements before and after surgery. We also determined the relative position of the Puddu plate in relation to the posterior tibial cortex. Results: There was an increase of approximately 34% in the tibial slope after surgery, with the mean value rising from 7.6° to 10.2°. This difference was statistically significant (p = 0.0006). There is a correlation between the preoperative and postoperative inclination angles of the tibial plateau (r = 0.4131, p = 0.0065). The relative position and the size of the implant did not influence the changes in sagittal alignment. Conclusion: There was a statistically significant increase in the angulation of the proximal tibial articular surface in the sagittal plane after high tibial osteotomy. The posterior positioning of the Puddu plate was not related to a smaller increase of this angle / Mestrado / Fisiopatologia Cirúrgica / Mestre em Ciências
2

Posouzení stupně valgozity a varozity u žáků druhého stupně na základních školách v Karlovarském kraji / Assess the degree of valgus and varus knee joint in the second stage students in primary school in the Karlovarský region

Reismüller, Roman January 2014 (has links)
Title: Assess the degree of valgus and varus knee joint in the second stage students in primary school in the Karlovarský region. Objective: The aim of this study was to explore and assess the degree of weakening of the lower limbs in the knee joint area in children of second stage of primary school in Karlovarský region. The effort was get as much information from the test subjects to understand and determining problems in the lower limbs. It measured two types of impairment, valgus and varus knee. Part of this study was to find what sports activities affect the creation or increase of individual weakness in the recreational and competitive level. Methods: The thesis is conducted as an empirical quantitative research, which focuses on finding descriptive and associative relationships between variables. From a methodological point of view this is a type of observation. To determine the necessary data was used planimetric method: trigonometric measurement. Measurements were attended by 531 children, including 243 boys and 288 girls aged from 11 to 16. This has involved completing a questionnaire form with basic somatic details and types of sporting activities. Results: The results show significant differences between girls and boys with genu valgum and genu varum. Girls also reached higher values...

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