{"id":83989,"date":"2018-03-10T00:08:12","date_gmt":"2018-03-10T00:08:12","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/alargamiento-oseo-mediante-distraccion-fisaria-en-conejos-bajo-influjo-hormonal-estudio-experimental\/"},"modified":"2018-03-10T00:08:12","modified_gmt":"2018-03-10T00:08:12","slug":"alargamiento-oseo-mediante-distraccion-fisaria-en-conejos-bajo-influjo-hormonal-estudio-experimental","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-medicas\/alargamiento-oseo-mediante-distraccion-fisaria-en-conejos-bajo-influjo-hormonal-estudio-experimental\/","title":{"rendered":"Alargamiento \u00f3seo mediante distracci\u00f3n fisaria en conejos bajo influjo hormonal. estudio experimental."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Damian Mifsut Miedes <\/strong><\/h2>\n<p>Introduccion  la distracci\u00f3n f\u00edsica como t\u00e9cnica de alargamiento \u00f3seo, posee en la actualidad unas indicaciones limitadas, entre otros motivos, por el riesgo de alterar el crecimiento posterior de la fisi, comprometiendo su viabilidad. con el fin de prevenir da\u00f1os histol\u00f3gicos enla fisis sometida a distracci\u00f3n, asociamos tiroxina a altas dosis, la cual en estudios precedentes hab\u00eda demostrado ser capaz de retrasar el crecimiento.  material y metodo  se utilizaron 64 conejos de raza neozelandesa de 9 semanas de edad. se dividi\u00f3 el estudio en dos fases:  fase i, con 4 grupos: a control, btratados con tiroxina (400ug\/kg\/10 d\u00edas), c (distracci\u00f3n fisaria 0,5 mm\/d\u00edas\/20 d\u00edas), d(t+df), a 3 tiempos de evoluci\u00f3n (1-1,5 y 2 meses).  fase ii, con 2 grupos: a sin t, b con t a 3 tiempos de evoluci\u00f3n (10,13 y 17 d\u00edas).  resultados y conclusiones  en el estudio hitomorfom\u00e9trico y radiol\u00f3gico se observ\u00f3 como la tiroxina provocaba un retraso en el crecimiento en los conejos no intervenidos (grupos a y b), tratados con tiroxina (b), con una disminuci\u00f3n del \u00e1rea y altura media de la fisis, n\u00c2\u00ba de columnas y la longitud fermoral total a un mes de evoluci\u00f3n. En cambio en los conejos intervenidos (grupos c y d), el alargamiento por df era mayor cuando se asociaba tiroxina, ya que al debilitar la fisis las fuerzas de distracci\u00f3n eran m\u00e1s efectivas.  en el estudio histol\u00f3gico se observ\u00f3 cierre fisario en el 31% de los casos (25% sint, 6,2% cont) hiperplasia celular en zona proliferativa en el 56,2% de conejos intervenidos, produci\u00e9ndose siempre la epifisiolisis antes del 7\u00c2\u00ba d\u00eda. El tipo de epifisiolisis seg\u00fan la clasificaci\u00f3n de salter y harris era tipo i en el 75% de casos y tipo ii en el 25% de casos, localiz\u00e1ndose en la zona hipertr\u00f3fica el 43,8%, en zona proliferativa el 31,2% y en zona metafisaria el 25%.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Alargamiento \u00f3seo mediante distracci\u00f3n fisaria en conejos bajo influjo hormonal. estudio experimental.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Alargamiento \u00f3seo mediante distracci\u00f3n fisaria en conejos bajo influjo hormonal. estudio experimental. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Damian Mifsut Miedes <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Universitat de val\u00e9ncia (estudi general)<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 31\/03\/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>Francisco Gomar Sancho<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal:  Gasc\u00f3 g\u00f3mez de membrillera jos\u00e9 <\/li>\n<li>Carlos Barrios pitarque (vocal)<\/li>\n<li>  (vocal)<\/li>\n<li>  (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Damian Mifsut Miedes Introduccion la distracci\u00f3n f\u00edsica como t\u00e9cnica de alargamiento \u00f3seo, posee en la actualidad unas [&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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