{"id":4900,"date":"2026-03-16T13:02:09","date_gmt":"2026-03-16T10:02:09","guid":{"rendered":"https:\/\/wiki.voka.io\/glossary\/tetraplegie\/"},"modified":"2026-04-01T18:36:58","modified_gmt":"2026-04-01T15:36:58","slug":"tetraplegie","status":"publish","type":"glossary_item","link":"https:\/\/wiki.voka.io\/fr\/glossary\/tetraplegie\/","title":{"rendered":"T\u00e9trapl\u00e9gie"},"content":{"rendered":"\n<p>La t\u00e9trapl\u00e9gie (du grec <em>tetra<\/em> \u2014 quatre et <em>plegia<\/em> \u2014 paralysie, coup) est un \u00e9tat neurologique s\u00e9v\u00e8re, caract\u00e9ris\u00e9 par une perte compl\u00e8te des mouvements volontaires et de toutes les formes de sensibilit\u00e9 dans les deux bras, les deux jambes et le tronc. <\/p>\n\n<p>Cette pathologie est une cons\u00e9quence directe d&rsquo;une l\u00e9sion catastrophique de la moelle spinale au niveau cervical.<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-&#x44D;&#x442;&#x438;&#x43E;&#x43B;&#x43E;&#x433;&#x438;&#x44F;-&#x438;-&#x43F;&#x430;&#x442;&#x43E;&#x444;&#x438;&#x437;&#x438;&#x43E;&#x43B;&#x43E;&#x433;&#x438;&#x44F;\"><strong>\u00c9tiologie et physiopathologie<\/strong><\/h2>\n\n<p>Le substrat critique de la blessure est la destruction transversale ou l&rsquo;isch\u00e9mie profonde de la moelle spinale au niveau des segments allant de la premi\u00e8re cervicale (C1) \u00e0 la premi\u00e8re thoracique (T1). Le plus souvent, une telle l\u00e9sion survient lors de fractures compliqu\u00e9es des vert\u00e8bres cervicales suite \u00e0 un accident de la route, une chute de hauteur ou une plong\u00e9e imprudente en eaux peu profondes.<\/p>\n\n<p>Le m\u00e9canisme de d\u00e9veloppement d&rsquo;une paralysie totale est li\u00e9 \u00e0 une interruption anatomique compl\u00e8te des voies motrices descendantes (tracts cortico-spinaux), par lesquelles les commandes du cortex c\u00e9r\u00e9bral sont transmises aux muscles squelettiques. Simultan\u00e9ment, toutes les voies sensorielles ascendantes, transmettant les signaux du corps au cerveau, sont interrompues.<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-&#x43A;&#x43B;&#x438;&#x43D;&#x438;&#x447;&#x435;&#x441;&#x43A;&#x43E;&#x435;-&#x437;&#x43D;&#x430;&#x447;&#x435;&#x43D;&#x438;&#x435;\"><strong>Importance clinique<\/strong><\/h2>\n\n<p>La t\u00e9trapl\u00e9gie repr\u00e9sente l&rsquo;une des blessures les plus invalidantes en m\u00e9decine. La s\u00e9v\u00e9rit\u00e9 clinique de l&rsquo;\u00e9tat du patient d\u00e9pend du niveau exact de l\u00e9sion de la moelle spinale. Une blessure au-dessus du quatri\u00e8me vert\u00e8bre cervical (C4) entra\u00eene la paralysie du nerf phr\u00e9nique, rendant la respiration ind\u00e9pendante impossible et n\u00e9cessitant une ventilation artificielle \u00e0 vie.<\/p>\n\n<p>En plus de l&rsquo;immobilisation compl\u00e8te des membres, les patients souffrent de dysfonctionnements profonds du syst\u00e8me nerveux autonome. Cela se manifeste par une absence de contr\u00f4le sur la miction et la d\u00e9f\u00e9cation, des perturbations de la thermor\u00e9gulation et des crises de dysr\u00e9flexie autonome potentiellement mortelles (fluctuations incontr\u00f4l\u00e9es de la pression art\u00e9rielle).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>La t\u00e9trapl\u00e9gie (du grec <em>tetra<\/em> \u2014 quatre et <em>plegia<\/em> \u2014 paralysie, coup) est un \u00e9tat neurologique s\u00e9v\u00e8re, caract\u00e9ris\u00e9 par une perte compl\u00e8te des mouvements volontaires et de toutes les formes de sensibilit\u00e9 dans les deux bras, les deux jambes et le tronc. <\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-4900","glossary_item","type-glossary_item","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.0 (Yoast SEO v26.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>T\u00e9trapl\u00e9gie 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