{"id":6289,"date":"2026-03-16T13:02:07","date_gmt":"2026-03-16T10:02:07","guid":{"rendered":"https:\/\/wiki.voka.io\/glossary\/radiculopathie\/"},"modified":"2026-04-16T13:55:33","modified_gmt":"2026-04-16T10:55:33","slug":"radiculopathie","status":"publish","type":"glossary_item","link":"https:\/\/wiki.voka.io\/fr\/glossary\/radiculopathie\/","title":{"rendered":"Radiculopathie"},"content":{"rendered":"\n<p>La radiculopathie (du lat. <em>radicula<\/em> \u2013 racine et de gr. <em>pathos<\/em> \u2013 souffrance, maladie) est un complexe de sympt\u00f4mes neurologiques cliniques r\u00e9sultant de la compression, de l&rsquo;irritation chimique ou de la l\u00e9sion traumatique de la racine nerveuse spinale \u00e0 l&rsquo;endroit o\u00f9 elle sort du canal rachidien.<\/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>Chaque nerf spinal se forme par la fusion des racines ant\u00e9rieure (motrice) et post\u00e9rieure (sensitive). Ces structures quittent la colonne vert\u00e9brale par de fins foramens intervert\u00e9braux. La cause la plus fr\u00e9quente de leur atteinte est le conflit disco-m\u00e9dullaire \u2013 une compression physique de la racine par une hernie discale intervert\u00e9brale.<\/p>\n\n<p>Dans les conditions de compression aig\u00fce interne de la racine, le drainage veineux est imm\u00e9diatement compromis, un \u0153d\u00e8me local et une hypoxie tissulaire se d\u00e9veloppent. Une inflammation immunitaire aseptique se joint, provoqu\u00e9e par le contact du nerf avec le noyau pulpeux du disque. Ces processus bloquent le flux axoplasmique normal \u00e0 l&rsquo;int\u00e9rieur de la fibre nerveuse, conduisant \u00e0 une alt\u00e9ration de la conductivit\u00e9 des signaux.<\/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 radiculopathie est caract\u00e9ris\u00e9e par une triade clinique classique de sympt\u00f4mes. Premi\u00e8rement, c&rsquo;est une douleur aigu\u00eb, fulgurante ou br\u00fblante, qui se propage strictement le long de l&rsquo;innervation du nerf sp\u00e9cifique (dermatome). Deuxi\u00e8mement, des troubles sensoriels apparaissent sous forme d&rsquo;engourdissements ou de paresth\u00e9sies dans la m\u00eame zone. Troisi\u00e8mement, des troubles moteurs se d\u00e9veloppent sous forme de faiblesse de certains groupes musculaires (myotome) et de diminution des r\u00e9flexes tendineux.<\/p>\n\n<p>Le diagnostic est imp\u00e9rativement confirm\u00e9 par r\u00e9sonance magn\u00e9tique, qui visualise le site de compression, et par \u00e9lectromyographie, \u00e9valuant le degr\u00e9 de l\u00e9sion de la fibre. Le traitement commence par le contr\u00f4le de l&rsquo;inflammation par des blocs m\u00e9dicamenteux, et s&rsquo;il est inefficace, requiert l&rsquo;ablation chirurgicale de la hernie ou de l&rsquo;ost\u00e9ophyte.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>La radiculopathie (du lat. <em>radicula<\/em> \u2013 racine et de gr. <em>pathos<\/em> \u2013 souffrance, maladie) est un complexe de sympt\u00f4mes neurologiques cliniques r\u00e9sultant de la compression, de l&rsquo;irritation chimique ou de la l\u00e9sion traumatique de la racine nerveuse spinale \u00e0 l&rsquo;endroit o\u00f9 elle sort du canal rachidien.<\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-6289","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>Radiculopathie : d\u00e9finition m\u00e9dicale et 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