{"id":21602,"date":"2003-12-02T00:00:00","date_gmt":"2003-12-02T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/osteotoma%c2%ada-tibial-valguizante-osteosa%c2%adntesis-con-tornillos-canulados-estudio-biomecanico-experimental\/"},"modified":"2003-12-02T00:00:00","modified_gmt":"2003-12-02T00:00:00","slug":"osteotoma%c2%ada-tibial-valguizante-osteosa%c2%adntesis-con-tornillos-canulados-estudio-biomecanico-experimental","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/osteotoma%c2%ada-tibial-valguizante-osteosa%c2%adntesis-con-tornillos-canulados-estudio-biomecanico-experimental\/","title":{"rendered":"Osteotom\u00edatibial valguizante. osteos\u00edntesis con tornillos canulados. estudio biomec\u00e1nico experimental"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Teresa Serra Porta <\/strong><\/h2>\n<p>La aplicaci\u00f3n de osteos\u00edntesis en osteotom\u00eda tibial valguizante confiere estabilidad evitando las p\u00e9rdidas de correci\u00f3n precoz en el primer a\u00f1o y permitiendo la movilizaci\u00f3n precoz de la rodilla. No existen referencias en la literatura del uso de tornillos canulados para la estabilizaci\u00f3n de la osteotom\u00eda valguizante tibial.  objetivos  en muestras de rodillas humanas sometidas a osteotom\u00eda tibial valguizante metafisaria de cu\u00f1a de sustracci\u00f3n externa, evaluar y comparar el comportamiento mec\u00e1nico de tornillos canulados implantados en 2 posiciones respecto a 2 s\u00edntesis de elevada rigidez (l\u00e1mina-placa y fijador externo).  material y m\u00e9todos  a 13 rodillas humanas conservadas por congelaci\u00f3n se les practica osteotom\u00eda tibial para conseguir un valguismo cercano a los 7\u00c2\u00ba. El grupo a (4 casos) se sintetiza con 2 tornillos canulados desde la vertiente externa; el grupo b (3 casos), 2 desde la vertiente interna; el grupo c (3 casos), con l\u00e1mina-placa; y el grupo d (3 casos), con fijador externo tipo charnley. Cada muestra se estudia radiol\u00f3gica y densitom\u00e9tricamente. Se analizan la alineaci\u00f3n de la muestra (\u00e1ngulos f\u00e9moro-tibial, distal femoral y proximales tibiales alfa y beta), la posici\u00f3n de la s\u00edntesis y el cierre de la osteotom\u00eda antes y despu\u00e9s del test mec\u00e1nico. En una m\u00e1quina de ensayos universal se realiza un test destuctivo por aplicaci\u00f3n de carga axial compresiva r\u00e1pida con obtenci\u00f3n de curvas de fuerza-desplazamiento (n\/mm).  resultados y conclusiones  se obtienen resultados mec\u00e1nicos excelentes (pico de fuerza y rigidez) en los 4 grupos, siempre asociados a un correcto cierre de la osteotom\u00eda. los grupos de tornillos canulados (a y b) consiguen un mayor n\u00famero de cierres correctos debido a su ajustabilidad. La medici\u00f3n del \u00e1ngulo tibial proximal alfa es la m\u00e1s id\u00f3nea para la evaluaci\u00f3n de las muestras despu\u00e9s del test compresivo. Las fracturas asociadas se relacionan con el tipo de<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Osteotom\u00edatibial valguizante. osteos\u00edntesis con tornillos canulados. estudio biomec\u00e1nico experimental<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Osteotom\u00edatibial valguizante. osteos\u00edntesis con tornillos canulados. estudio biomec\u00e1nico experimental <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Teresa Serra Porta <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Aut\u00f3noma de barcelona<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 12\/02\/2003<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Manuel Marin Navarro<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: manuel Armengol carrasco <\/li>\n<li>Santiago Suso vergara (vocal)<\/li>\n<li>vicent Fonollosa pla (vocal)<\/li>\n<li>rodrigo Miralles marrero (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Teresa Serra Porta La aplicaci\u00f3n de osteos\u00edntesis en osteotom\u00eda tibial valguizante confiere estabilidad evitando las p\u00e9rdidas de [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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