{"id":3831,"date":"2026-03-16T13:02:14","date_gmt":"2026-03-16T10:02:14","guid":{"rendered":"https:\/\/wiki.voka.io\/glossary\/acromio\/"},"modified":"2026-04-01T18:36:13","modified_gmt":"2026-04-01T15:36:13","slug":"acromio","status":"publish","type":"glossary_item","link":"https:\/\/wiki.voka.io\/pt\/glossary\/acromio\/","title":{"rendered":"Acr\u00f4mio"},"content":{"rendered":"\n<p>Acr\u00f4mio (do grego <em>akron<\/em>, que significa extremidade ou \u00e1pice, e <em>omos<\/em>, que significa ombro) \u00e9 uma proje\u00e7\u00e3o \u00f3ssea grande e achatada da esc\u00e1pula em forma de tri\u00e2ngulo, constituindo a extens\u00e3o lateral de seu espinho.<\/p>\n\n<p>Ele emite-se sobre a cabe\u00e7a do \u00famero, formando uma esp\u00e9cie de &#8220;teto&#8221; para a articula\u00e7\u00e3o glenoumeral e serve como ponto de articula\u00e7\u00e3o entre a esc\u00e1pula e a clav\u00edcula.<\/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>Etiologia e fisiopatologia<\/strong><\/h2>\n\n<p>O acr\u00f4mio desempenha um papel fundamental na biomec\u00e2nica do complexo do ombro. Fasc\u00edculos robustos dos m\u00fasculos deltoide e trap\u00e9zio est\u00e3o ligados \u00e0 sua superf\u00edcie superior \u00e1spera e \u00e0s bordas. No bordo antero-medial do processo h\u00e1 uma pequena faceta articular que, juntamente com a clav\u00edcula, forma uma articula\u00e7\u00e3o acromioclavicular pouco m\u00f3vel.<\/p>\n\n<p>Uma das caracter\u00edsticas anat\u00f4micas mais importantes \u00e9 a forma da superf\u00edcie inferior do acr\u00f4mio, voltada para o manguito rotador. De acordo com a classifica\u00e7\u00e3o morfol\u00f3gica de Bigliani, existem tr\u00eas tipos de estrutura: plano, curvado e em forma de gancho.<\/p>\n\n<p>A forma em gancho do processo, bem como a forma\u00e7\u00e3o de oste\u00f3fitos (espor\u00f5es \u00f3sseos) devido \u00e0 idade, reduzem criticamente o espa\u00e7o subacromial. Isso leva a um conflito mec\u00e2nico: ao levantar o bra\u00e7o, o tend\u00e3o do m\u00fasculo supraespinhal fica preso entre a cabe\u00e7a do \u00famero e a borda do acr\u00f4mio.<\/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>Import\u00e2ncia cl\u00ednica<\/strong><\/h2>\n\n<p>A anatomia patol\u00f3gica do acr\u00f4mio \u00e9 a principal causa do desenvolvimento da s\u00edndrome de impacta\u00e7\u00e3o do ombro. A traumatiza\u00e7\u00e3o cr\u00f4nica do manguito rotador contra essa proje\u00e7\u00e3o \u00f3ssea leva a bursites persistentes e a rupturas degenerativas dos tend\u00f5es, que podem exigir ressec\u00e7\u00e3o cir\u00fargica de parte do processo.<\/p>\n\n<p>Fraturas isoladas do acr\u00f4mio s\u00e3o raras e geralmente ocorrem por golpes diretos e severos de cima no ombro. No diagn\u00f3stico diferencial, \u00e9 importante lembrar a exist\u00eancia de uma anomalia cong\u00eanita \u2014 a n\u00e3o fus\u00e3o dos centros de ossifica\u00e7\u00e3o do acr\u00f4mio, quando sua parte extrema permanece m\u00f3vel e pode ser erroneamente interpretada como uma fratura recente em uma radiografia.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Acr\u00f4mio (do grego <em>akron<\/em> \u2014 extremidade, v\u00e9rtice e omos \u2014 ombro) \u00e9 uma grande proje\u00e7\u00e3o \u00f3ssea achatada em forma de tri\u00e2ngulo da esc\u00e1pula, sendo uma continua\u00e7\u00e3o lateral de sua espinha. <\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-3831","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>Acr\u00f4mio: defini\u00e7\u00e3o m\u00e9dica e 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