{"id":3864,"date":"2026-03-16T13:02:11","date_gmt":"2026-03-16T10:02:11","guid":{"rendered":"https:\/\/wiki.voka.io\/glossary\/pseudarthrose\/"},"modified":"2026-04-01T18:36:42","modified_gmt":"2026-04-01T15:36:42","slug":"pseudarthrose","status":"publish","type":"glossary_item","link":"https:\/\/wiki.voka.io\/fr\/glossary\/pseudarthrose\/","title":{"rendered":"Pseudarthrose"},"content":{"rendered":"\n<p>Pseudarthrose (du grec <em>pseudes<\/em> \u2014 faux et <em>arthron<\/em> \u2014 articulation) est un \u00e9tat pathologique caract\u00e9ris\u00e9 par une perturbation persistante de l&rsquo;int\u00e9grit\u00e9 osseuse, entra\u00eenant une mobilit\u00e9 anormale au site d&rsquo;une fracture ant\u00e9rieure. <\/p>\n\n<p>Il s&rsquo;agit du r\u00e9sultat d&rsquo;un traumatisme o\u00f9 le processus biologique de consolidation a compl\u00e8tement cess\u00e9, et la gu\u00e9rison spontan\u00e9e est impossible.<\/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>La formation de pseudarthrose se produit lorsque persiste un diastasis (large espace) entre les fragments osseux ou lorsqu&rsquo;il existe une micropulsion r\u00e9guli\u00e8re. Les causes principales incluent une immobilisation insuffisante, une charge pr\u00e9matur\u00e9e sur le membre, l&rsquo;interposition de tissus mous entre les fragments ou une perturbation locale de l&rsquo;apport sanguin.<\/p>\n\n<p>Au niveau cellulaire, le processus de formation osseuse s&rsquo;arr\u00eate. Les extr\u00e9mit\u00e9s des fragments osseux se recouvrent de tissu cicatriciel, s&rsquo;\u00e9paississent (se scl\u00e9rosent) et se ferment par des plaques de verrouillage osseuses. Le canal m\u00e9dullaire est enti\u00e8rement recouvert de tissu cicatriciel. Une capsule fibreuse dense se forme autour de la zone de non-union.<\/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>Cliniquement, la pathologie se manifeste par une mobilit\u00e9 allant de sans douleur \u00e0 mod\u00e9r\u00e9ment douloureuse dans la r\u00e9gion de l&rsquo;articulation fausse, une d\u00e9formation, une atrophie musculaire locale et une alt\u00e9ration de la fonction du segment affect\u00e9.<\/p>\n\n<p>Les radiographies montrent clairement l&rsquo;\u00e9cart entre les fragments, le lissage et l&rsquo;arrondissement caract\u00e9ristiques de leurs extr\u00e9mit\u00e9s, ainsi que la fermeture compl\u00e8te du canal m\u00e9dullaire. Le traitement de l&rsquo;articulation fausse est exclusivement chirurgical. Il n\u00e9cessite l&rsquo;excision des tissus cicatriciels, la r\u00e9ouverture des canaux m\u00e9dullaires et une fixation stable des fragments.<\/p>\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pseudarthrose (du grec <em>pseudes<\/em> \u2014 faux et <em>arthron<\/em> \u2014 articulation) est un \u00e9tat pathologique caract\u00e9ris\u00e9 par une perturbation persistante de l&rsquo;int\u00e9grit\u00e9 osseuse, entra\u00eenant une mobilit\u00e9 anormale au site d&rsquo;une fracture ant\u00e9rieure. <\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-3864","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>Pseudarthrose : d\u00e9finition m\u00e9dicale et description | Voka Wiki<\/title>\n<meta name=\"description\" content=\"Pseudarthrose (du grec pseudes \u2014 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