{"id":85613,"date":"2000-04-07T00:00:00","date_gmt":"2000-04-07T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/definicion-de-un-modelo-para-la-evaluacion-y-el-diseno-de-sistemas-de-fijacion-de-raquis-en-base-a-metodos-anala%c2%adticos\/"},"modified":"2000-04-07T00:00:00","modified_gmt":"2000-04-07T00:00:00","slug":"definicion-de-un-modelo-para-la-evaluacion-y-el-diseno-de-sistemas-de-fijacion-de-raquis-en-base-a-metodos-anala%c2%adticos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-vida\/definicion-de-un-modelo-para-la-evaluacion-y-el-diseno-de-sistemas-de-fijacion-de-raquis-en-base-a-metodos-anala%c2%adticos\/","title":{"rendered":"Definici\u00f3n de un modelo para la evaluaci\u00f3n y el dise\u00f1o de sistemas de fijaci\u00f3n de raquis en base a m\u00e9todos anal\u00edticos."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Carlos Manuel Atienza Vicente <\/strong><\/h2>\n<p>En esta tesis se presenta un modelo tridimensional, seg\u00fa el m\u00e9todo de elementos finitos validado (en los modos de carga de flexi\u00f3n, extensi\u00f3n, flexi\u00f3n lateral y torsi\u00f3n) del tramo de la columna lumbar (l2-l5) intacta, en el cual se ha realizado una desestabilizaci\u00f3n, e instrumentaci\u00f3n con un sistema de fijaci\u00f3n posterior. En el modelo de la columna intacta se ha realizado un an\u00e1lisis de sensibilidad de la rigidez del modelo a aquellos par\u00e1metros que han mostrado una mayor variabilidad en la literatura estudiada.  en el modelo validado de la columna instrumentada se ha evaluado el efecto de los factores mec\u00e1nicos y biol\u00f3gicos sobre la rigidez del conjunto raquis-implante y sobre las tensiones de lso distintos elementos del sistema de fijaci\u00f3n y las estructuras de la columna. Para obtener este modelo han sido necesarias tres etapas: el modelado y validaci\u00f3n de cuatro sistemas de fijaci\u00f3n, el modelado y validaci\u00f3n del tramo l2-l5 de la columna lumbar y todas sus estructuras (discos intervertebrales, ligamentos y carillas articulares), y la integraci\u00f3n y validaci\u00f3n de los sistemas de fijaci\u00f3n, previamente caracterizados, en el modelo de la columna lumbar.  los factores mec\u00e1nicos y biol\u00f3gicos que m\u00e1s influyen sobre la rigidez del conjunto raquis-implante son: en torsi\u00f3n y extensi\u00f3n el material del sistema de fijaci\u00f3n, en flexi\u00f3n lateral la utilizaci\u00f3n del conector transversal y en flexi\u00f3n el uso de injerto anterior de peron\u00e9, que aumenta la rigidez en un 230% y disminuye las tensiones en las barras en un 82%.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Definici\u00f3n de un modelo para la evaluaci\u00f3n y el dise\u00f1o de sistemas de fijaci\u00f3n de raquis en base a m\u00e9todos anal\u00edticos.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Definici\u00f3n de un modelo para la evaluaci\u00f3n y el dise\u00f1o de sistemas de fijaci\u00f3n de raquis en base a m\u00e9todos anal\u00edticos. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Carlos Manuel Atienza Vicente <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de Valencia<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 04\/07\/2000<\/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> Prat Pastor Jaime Miguel<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: justo Nieto nieto <\/li>\n<li> Perez millan Luis Antonio (vocal)<\/li>\n<li>isamel Escrib\u00e1 roca (vocal)<\/li>\n<li>Antonio Hern\u00e1ndez royo (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Carlos Manuel Atienza Vicente En esta tesis se presenta un modelo tridimensional, seg\u00fa el m\u00e9todo de elementos [&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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