<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1646-2122</journal-id>
<journal-title><![CDATA[Revista Portuguesa de Ortopedia e Traumatologia]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Port. Ortop. Traum.]]></abbrev-journal-title>
<issn>1646-2122</issn>
<publisher>
<publisher-name><![CDATA[Sociedade Portuguesa de Ortopedia e Traumatologia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1646-21222016000100006</article-id>
<title-group>
<article-title xml:lang="pt"><![CDATA[Disfagia por Hiperostose Cervical Exuberante em Doença de Forestier: Resultados do Tratamento Cirúrgico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Moura]]></surname>
<given-names><![CDATA[Diogo]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carvalho]]></surname>
<given-names><![CDATA[Marcos]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lourenço]]></surname>
<given-names><![CDATA[Paulo]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Centro Hospitalar e Universitário de Coimbra Serviço de Ortopedia e Traumatologia ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2016</year>
</pub-date>
<volume>24</volume>
<numero>1</numero>
<fpage>51</fpage>
<lpage>60</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S1646-21222016000100006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S1646-21222016000100006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S1646-21222016000100006&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="pt"><p><![CDATA[A hiperostose esquelética idiopática difusa, também conhecida por doença de Forestier, é uma patologia rara caracterizada por ossificação massiva de ligamentos, tendões e inserções musculares da porção anterior da coluna vertebral. Quando atinge a coluna cervical, esta doença pode causar disfagia por compressão extrínseca da faringe e esófago. Nos casos graves e progressivos, a resseção cirúrgica de osteófitos e calcificações é considerada um tratamento eficaz. Apresentamos dois casos que foram tratados com sucesso com exostosectomia cervical anterior, obtendo-se alívio precoce e completo dos sintomas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Diffuse idiopathic skeletal hyperostosis, also known as Forestier’s disease, is a rare condition characterized by massive ossification affecting ligaments, tendons, and entheses of the anterior part of the spinal column. When cervical spine is affected, this disease can cause dysphagia by extrinsic compression of pharynx and esophagus. In severe and progressive cases, surgical resection of the osteophytes and calcifications is considered an effective treatment. We report two cases that were managed successfully with an anterior cervical exostectomy, with early and complete symptoms relief.]]></p></abstract>
<kwd-group>
<kwd lng="pt"><![CDATA[Disfagia]]></kwd>
<kwd lng="pt"><![CDATA[hiperostose esquelética idiopática difusa]]></kwd>
<kwd lng="pt"><![CDATA[doença de Forestier]]></kwd>
<kwd lng="pt"><![CDATA[coluna cervical]]></kwd>
<kwd lng="pt"><![CDATA[osteófito]]></kwd>
<kwd lng="pt"><![CDATA[calcificação]]></kwd>
<kwd lng="en"><![CDATA[Dysphagia]]></kwd>
<kwd lng="en"><![CDATA[diffuse idiopathic skeletal hyperostosis]]></kwd>
<kwd lng="en"><![CDATA[Forestier disease]]></kwd>
<kwd lng="en"><![CDATA[cervical spine]]></kwd>
<kwd lng="en"><![CDATA[osteophyte]]></kwd>
<kwd lng="en"><![CDATA[calcification]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="right"><b><font face="Verdana" size="2">CASO CLÍNICO</font></b></p>    <p>&nbsp;</p>    <p><b><font face="Verdana" size="4">Disfagia por Hiperostose Cervical Exuberante em Doença de Forestier - Resultados do Tratamento Cirúrgico</font></b></p>    <p>&nbsp;</p>    <p><font face="Verdana" size="2"><b>Diogo Moura<sup>I</sup></b>; <b>Marcos Carvalho<sup>I</sup></b>; <b>Paulo Lourenço<sup>I</sup></b></font></p>    <p><font face="Verdana" size="2">I. Serviço de Ortopedia e Traumatologia do Centro Hospitalar e Universitário de Coimbra.<br /></font></p>    <p>&nbsp;</p>    <p><font face="Verdana" size="2"><a name="topc"></a><a href="#c">Endereço para correspondência</a></font></p>    <p>&nbsp;</p>    <p><b><font face="Verdana" size="2">RESUMO</font></b></p><font face="verdana" size="2">    ]]></body>
<body><![CDATA[<p>A hiperostose esquel&eacute;tica idiop&aacute;tica difusa, tamb&eacute;m conhecida por doen&ccedil;a de Forestier, &eacute; uma patologia rara caracterizada por ossifica&ccedil;&atilde;o massiva de ligamentos, tend&otilde;es e inser&ccedil;&otilde;es musculares da por&ccedil;&atilde;o anterior da coluna vertebral. Quando atinge a coluna cervical, esta doen&ccedil;a pode causar disfagia por compress&atilde;o extr&iacute;nseca da faringe e es&oacute;fago. Nos casos graves e progressivos, a resse&ccedil;&atilde;o cir&uacute;rgica de oste&oacute;fitos e calcifica&ccedil;&otilde;es &eacute; considerada um tratamento eficaz. Apresentamos dois casos que foram tratados com sucesso com exostosectomia cervical anterior, obtendo-se al&iacute;vio precoce e completo dos sintomas.</p></font>    <p><font face="verdana" size="2"><b>Palavras chave</b>: Disfagia, hiperostose esquelética idiopática difusa, doença de Forestier, coluna cervical, osteófito, calcificação. </font></p>    <p>&nbsp;</p>    <p><b><font face="Verdana" size="2">ABSTRACT</font></b></p><font face="verdana" size="2">    <p>Diffuse idiopathic skeletal hyperostosis, also known as Forestier&rsquo;s disease, is a rare condition characterized by massive ossification affecting ligaments, tendons, and entheses of the anterior part of the spinal column. When cervical spine is affected, this disease can cause dysphagia by extrinsic compression of pharynx and esophagus. In severe and progressive cases, surgical resection of the osteophytes and calcifications is considered an effective treatment. We report two cases that were managed successfully with an anterior cervical exostectomy, with early and complete symptoms relief.</p></font>    <p><font face="verdana" size="2"><b>Key words</b>: Dysphagia, diffuse idiopathic skeletal hyperostosis, Forestier disease, cervical spine, osteophyte, calcification. </font></p>    <p>&nbsp;</p>    <p><b><font face="Verdana" size="2">INTRODUÇÃO</font></b></p><font face="verdana" size="2">    <p>A disfagia &eacute; um sintoma frequente nos idosos. No entanto, este sintoma pode ter v&aacute;rias etiologias, cujo diagn&oacute;stico &eacute; frequentemente um desafio<sup>1,2</sup>. Uma das causas raras de disfagia &eacute; a compress&atilde;o extr&iacute;nseca da faringe e es&oacute;fago por oste&oacute;fitos e calcifica&ccedil;&otilde;es anteriores da coluna cervical. A hiperostose esquel&eacute;tica idiop&aacute;tica difusa (DISH &ndash; Diffuse idiopathic skeletal hyperostosis) ou doen&ccedil;a de Forestier &eacute; uma entidade caracterizada por uma ossifica&ccedil;&atilde;o progressiva massiva de tecidos moles envolventes da coluna vertebral, incluindo ligamentos (sobretudo o ligamento longitudinal comum anterior), aponevroses e inser&ccedil;&otilde;es musculares<sup>3,4,5</sup>. Apesar de na maioria das vezes esta doen&ccedil;a ser assintom&aacute;tica e atingir mais predominantemente a coluna tor&aacute;cica, pode tamb&eacute;m raramente atingir a coluna cervical e provocar sintomas como disfagia, impacta&ccedil;&atilde;o alimentar, disfonia, roncos noturnos, dispneia, estridor, edema lar&iacute;ngeo e obstru&ccedil;&atilde;o da via &aacute;erea<sup>3,4,6</sup>.</p>
    <p>Neste trabalho apresentamos dois de um total de seis casos cl&iacute;nicos tratados no nosso centro desde 2010, que consistem em disfagias progressivas provocadas por DISH com atingimento predominante da coluna cervical anterior e os resultados do seu tratamento cir&uacute;rgico.</p></font>    ]]></body>
<body><![CDATA[<p>&nbsp;</p>    <p><b><font face="Verdana" size="2">CASOS CLÍNICOS:</font></b></p><font face="verdana" size="2">    <p>O primeiro caso &eacute; um paciente do sexo masculino, 77 anos de idade e antecedentes de hipertens&atilde;o arterial e s&iacute;ndrome depressivo, que iniciou disfagia alta para s&oacute;lidos com agravamento progressivo ao longo de 5 anos, passando a ocorrer recentemente tamb&eacute;m para l&iacute;quidos. Ap&oacute;s avalia&ccedil;&atilde;o por Otorrinolaringologia, foi solicitado um estudo din&acirc;mico da degluti&ccedil;&atilde;o com contraste baritado (<a href="/img/revistas/rpot/v24n1/24n1a06f1.jpg">Figura 1-A</a>), no qual foi detetada volumosa osteofitose anterior dos corpos vertebrais de C3 e C4, a condicionar atraso na progress&atilde;o do contraste.</p>    
<p>&nbsp;</p>    <p>    <center><a href="/img/revistas/rpot/v24n1/24n1a06f1.jpg">Figura 1</a></center></p>    
<p>&nbsp;</p>
    <p>O segundo caso &eacute; um paciente do sexo masculino, 66 anos de idade e antecedentes de cardiopatia isqu&eacute;mica, hipertens&atilde;o arterial e hipercolesterol&eacute;mia, que iniciou disfagia alta apenas para s&oacute;lidos com agravamento progressivo ao longo de 1 ano e sensa&ccedil;&atilde;o de impacta&ccedil;&atilde;o alimentar. &Agrave; semelhan&ccedil;a do caso anterior foi avaliado por Otorrinolaringologia e o estudo din&acirc;mico da degluti&ccedil;&atilde;o com contraste (<a href="/img/revistas/rpot/v24n1/24n1a06f2.jpg">Figura 2-A</a>) identificou volumosa osteofitose anterior dos corpos vertebrais de C3 a C6 a condicionar moldagem da parede posterior do es&oacute;fago cervical e consequentemente atraso na progress&atilde;o do contraste. Verificou-se tamb&eacute;m a presen&ccedil;a de uma imagem diverticular com cerca de 2,2 cm na depend&ecirc;ncia da parede &acirc;ntero-lateral direita do ter&ccedil;o m&eacute;dio do es&oacute;fago.</p>    
<p>&nbsp;</p>    <p>    ]]></body>
<body><![CDATA[<center><a href="/img/revistas/rpot/v24n1/24n1a06f2.jpg">Figura 2</a></center></p>    
<p>&nbsp;</p>
    <p>Ambos os pacientes foram inicialmente submetidos a tratamento conservador durante 6 meses, com altera&ccedil;&atilde;o da dieta, anti-inflamat&oacute;rios e relaxantes musculares. No entanto, por manuten&ccedil;&atilde;o da sintomatologia em contexto de osteofitose cervical anterior, foram referenciados &agrave; Consulta de Ortopedia, tendo sido realizado estudo com radiografia e tomografia computorizada cervicais.</p>
    <p>No primeiro caso verificaram-se fen&oacute;menos osteofit&aacute;rios exuberantes, localizados anteriormente na plataforma inferior do corpo vertebral de C3 e plataforma superior do corpo vertebral de C4, condicionando diminui&ccedil;&atilde;o de calibre da via a&eacute;rea, desvio anterior e compress&atilde;o do es&oacute;fago. Estavam tamb&eacute;m presentes marcadas calcifica&ccedil;&otilde;es dos ligamentos longitudinais, sobretudo entre C5-C8 no ligamento longitudinal anterior e entre C3-C7 no ligamento longitudinal posterior, condicionando diminui&ccedil;&atilde;o do calibre do canal vertebral (<a href="/img/revistas/rpot/v24n1/24n1a06f1.jpg">Figura 1-B,C,D</a>). O maior di&acirc;metro &acirc;ntero-posterior da osteofitose anterior apresentava cerca de 13,5mm, em compara&ccedil;&atilde;o com aproximadamente 15,7mm de di&acirc;metro &acirc;ntero-posterior dos corpos vertebrais adjacentes. Por sua vez, o segundo caso demonstrava marcada osteofitose anterior nos corpos vertebrais de C4 e C5, uma extensa calcifica&ccedil;&atilde;o anterior da coluna vertebral desde C3 a C6 e calcifica&ccedil;&atilde;o dos ligamentos longitudinais (<a href="/img/revistas/rpot/v24n1/24n1a06f2.jpg">Figura 2-B,C</a>). O maior di&acirc;metro &acirc;ntero-posterior desta calcifica&ccedil;&atilde;o anterior cerca de 17,5mm, em compara&ccedil;&atilde;o com aproximadamente 15mm de di&acirc;metro &acirc;ntero-posterior dos corpos vertebrais adjacentes.</p>
    
<p>Apesar dos crit&eacute;rios diagn&oacute;sticos serem controversos, os achados imagiol&oacute;gicos de hiperostose cervical anterior exuberante a atingir v&aacute;rios corpos vertebrais consecutivos, na aus&ecirc;ncia de degenera&ccedil;&atilde;o discal significativa, anquilose ou eros&otilde;es das articula&ccedil;&otilde;es intervertebrais, sugerem hiperostose esquel&eacute;tica difusa idiop&aacute;tica (DISH), diagn&oacute;stico que se admitiu nestes dois pacientes<sup>3,4,7,8</sup>.</p>
    <p>Atrav&eacute;s de uma via anterior da coluna cervical, os pacientes foram submetidos a exostosectomia e ex&eacute;rese de calcifica&ccedil;&otilde;es com recurso a fresa de alta rota&ccedil;&atilde;o e com controlo imagiol&oacute;gico intra-operat&oacute;rio sequencial da excis&atilde;o efetuada (<a href="/img/revistas/rpot/v24n1/24n1a06f1.jpg">Figuras 1-E</a>, <a href="/img/revistas/rpot/v24n1/24n1a06f2.jpg">2-D,E,F</a>). O p&oacute;s-operat&oacute;rio dos dois pacientes decorreu sem intercorr&ecirc;ncias. Foram realizadas radiografias e tomografias computorizadas de controlo p&oacute;s-operat&oacute;rio da coluna cervical, que n&atilde;o demonstraram altera&ccedil;&otilde;es relevantes, e estudos din&acirc;micos da degluti&ccedil;&atilde;o, que demonstraram progress&atilde;o normal do contraste (<a href="/img/revistas/rpot/v24n1/24n1a06f1.jpg">Figuras 1-F,G,H</a>, <a href="/img/revistas/rpot/v24n1/24n1a06f2.jpg">2-G,H</a>). Ambos os pacientes tiveram al&iacute;vio precoce completo das queixas de disfagia e encontram-se assintom&aacute;ticos e sem sinais de recidiva ap&oacute;s 1 ano de seguimento. N&atilde;o foram registadas quaisquer complica&ccedil;&otilde;es.</p></font>    
<p>&nbsp;</p>    <p><b><font face="Verdana" size="2">DISCUSSÃO</font></b></p><font face="verdana" size="2">    <p>A DISH &eacute; uma causa rara de disfagia, no entanto alguns autores consideram que pode estar a ser subdiagnosticada na popula&ccedil;&atilde;o idosa<sup>9,10,11</sup>. A origem desta patologia permanece desconhecida, contudo tem sido associada &agrave; terceira idade, ao sexo masculino e a doen&ccedil;as como obesidade, diabetes mellitus, hipercolesterol&eacute;mia e gota<sup>7,9</sup>. Os mecanismos fisiopatol&oacute;gicos propostos para a disfagia nesta patologia s&atilde;o a compress&atilde;o mec&acirc;nica direta, a inflama&ccedil;&atilde;o, edema e fibrose e o espasmo da regi&atilde;o faringo-esof&aacute;gica. Quando h&aacute; atingimento da coluna cervical alta, em particular no n&iacute;vel C3-C4, a laringe est&aacute; frequentemente afetada. A eleva&ccedil;&atilde;o lar&iacute;ngea e a limitada mobilidade da epiglote s&atilde;o mecanismos propostos para explicarem a disfagia nestas situa&ccedil;&otilde;es<sup>5,6,12,13,14</sup>.</p>
    <p>O diagn&oacute;stico &eacute; feito pela cl&iacute;nica de disfagia alta progressiva (mais grave para s&oacute;lidos do que para l&iacute;quidos), sensa&ccedil;&atilde;o de impacta&ccedil;&atilde;o alimentar, exclus&atilde;o de outras causas de disfagia e por exames de imagem, tais como o estudo din&acirc;mico da degluti&ccedil;&atilde;o com contraste baritado, a radiografia simples e a tomografia computorizada cervicais<sup>2,5,9</sup>.</p>
    ]]></body>
<body><![CDATA[<p>A interven&ccedil;&atilde;o cir&uacute;rgica consiste na remo&ccedil;&atilde;o dos oste&oacute;fitos e calcifica&ccedil;&otilde;es e est&aacute; indicada em casos de sintomas progressivos ou graves, sem resposta ao tratamento conservador<sup>6</sup>. A cirurgia est&aacute; tamb&eacute;m indicada na presen&ccedil;a de mielopatia, radiculopatia, paralisia do nervo lar&iacute;ngeo recorrente e de obstru&ccedil;&atilde;o da via &aacute;rea<sup>6,15,16</sup>. A via de abordagem mais frequentemente utilizada &eacute; a anterior (via de Smith-Robinson), mas tamb&eacute;m pode ser utilizada a via transfar&iacute;ngea<sup>17</sup>. Embora n&atilde;o se tenham verificado complica&ccedil;&otilde;es cir&uacute;rgicas nos casos apresentados, este procedimento pode estar associado a complica&ccedil;&otilde;es potencialmente graves, tais como hematoma, s&iacute;ndrome de Horner, paralisia do nervo lar&iacute;ngeo recorrente, paralisia do nervo lar&iacute;ngeo superior, les&atilde;o esof&aacute;gica e instabilidade cervical<sup>18,19</sup>. O risco de disfonia na via de abordagem cervical anterior foi considerado de 38%<sup>18</sup>.</p>
    <p>Num estudo em 6 pacientes com DISH sintom&aacute;tica, cinco apresentavam disfagia progressiva e todos estes apresentaram al&iacute;vio sintom&aacute;tico ap&oacute;s tratamento cir&uacute;rgico<sup>20</sup>. O al&iacute;vio sintom&aacute;tico precoce foi associado &agrave; elimina&ccedil;&atilde;o da causa de compress&atilde;o mec&acirc;nica direta, tal como acontece nos casos descritos. No entanto, verifica-se que alguns pacientes demoram meses at&eacute; al&iacute;vio da disfagia, o que poder&aacute; estar associado a uma evolu&ccedil;&atilde;o mais longa da doen&ccedil;a, j&aacute; com fen&oacute;menos de inflama&ccedil;&atilde;o cr&oacute;nica e fibrose faringo-esof&aacute;gica a contribu&iacute;rem para a fisiopatologia da disfagia<sup>1,14</sup>. Um estudo prospetivo em 7 pacientes com disfagia por DISH submetidos a resse&ccedil;&atilde;o de osteofitose cervical anterior com tempo de seguimento m&eacute;dio de 9 anos, verificou que todos os pacientes desenvolveram recidiva da osteofitose cervical anterior num aumento m&eacute;dio de 1mm por ano ap&oacute;s a cirurgia<sup>14</sup>. No entanto, apenas 2 destes pacientes voltaram a apresentar sintomas de disfagia aproximadamente 10 anos ap&oacute;s o tratamento cir&uacute;rgico e apenas um deles necessitou de reinterven&ccedil;&atilde;o cir&uacute;rgica por sintomas progressivos<sup>14</sup>.</p>
    <p>A resse&ccedil;&atilde;o cir&uacute;rgica, exostosectomia e ex&eacute;rese de calcifica&ccedil;&otilde;es da coluna cervical anterior, quando efetuados com uma indica&ccedil;&atilde;o adequada, s&atilde;o considerados um tratamento eficaz e seguro no al&iacute;vio da disfagia nos pacientes com DISH, tal como se pode verificar nos casos apresentados e na literatura cient&iacute;fica<sup>1,8,11,14,20,21,22,23,24,25</sup>. Apesar da reduzida taxa de complica&ccedil;&otilde;es, alguns autores sugerem que, devido a &iacute;ndices de recorr&ecirc;ncia importantes, se deve manter um seguimento a longo prazo destes pacientes<sup>14</sup>.</p></font>    <p>&nbsp;</p>    <p><b><font face="Verdana" size="2">CONCLUSÃO</font></b></p><font face="verdana" size="2">    <p>A disfagia provocada por DISH ao n&iacute;vel da coluna cervical &eacute; uma situa&ccedil;&atilde;o rara, mas para a qual devemos estar alerta, sobretudo na popula&ccedil;&atilde;o idosa. A exostosectomia e ex&eacute;rese de calcifica&ccedil;&otilde;es cervicais anteriores que provocam disfagia progressiva podem garantir de forma segura um al&iacute;vio sintom&aacute;tico precoce e melhoria da qualidade de vida dos pacientes.</p></font>    <p>&nbsp;</p>    <p><b><font face="Verdana" size="2">REFERÊNCIAS BIBLIOGRÁFICAS</font></b></p>    <!-- ref --><p><font face="verdana" size="2">1. Akhtar S, O&#39;flynn PE, Kelly A. The management of dysphagia in skeletal hyperostosis. J Laryngol Otol. 2000; 114: 154-157</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=1311126&pid=S1646-2122201600010000600001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><p><font face="verdana" size="2">2. Kmucha ST, Cravens Jr RB. DISH syndrome and its role in dysphagia. Otolaryngol Head Neck Surg. 1994 Apr; 110 (4): 431-436</font></p>    ]]></body>
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Cases Journal. 2008; 1: 416</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=1311147&pid=S1646-2122201600010000600022&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><p><font face="verdana" size="2">23. von der Hoeh NH, Voelker A, Jarvers JS, Gulow J, Heyde CE. Results after the surgical treatment of anterior cervical hyperostosis causing dysphagia. Eur Spine J. 2015 May; 24 (4): 489-493</font></p>    <p><font face="verdana" size="2">24. Carlson ML, Archibald DJ, Graner DE, Kasperbauer JL. Surgical management of dysphagia and airway obstruction in patients with prominent ventral cervical osteophytes. Dysphagia. 2011 Mar; 26 (1): 34-40</font></p>    <p><font face="verdana" size="2">25. Urrutia J, Bono CM. Long-term results of surgical treatment of dysphagia secondary to cervical diffuse idiopathic skeletal hyperostosis. Spine J. 2009 Sep; 9 (9): 138-17</font></p>    <p>&nbsp;</p>    <p><b><font face="Verdana" size="2">Conflito de interesse: </font></b></p><font face="verdana" size="2">    <p>Nada a declarar.</p></font>    <p>&nbsp;</p><a name="c"></a>    <p><b><font face="Verdana" size="2"><a href="#topc">Endereço para correspondência</a></font></b></p>    <p><font face="Verdana" size="2">Diogo Moura    <br>Serviço de Ortopedia e Traumatologia do Centro Hospitalar e Universitário de Coimbra, EPE    ]]></body>
<body><![CDATA[<br>Praceta Prof. Mota Pinto    <br>3000-075 COIMBRA    <br>PORTUGAL    <br>Telefone: +351 239 400 400    <br><a href="mailto:dflmoura@gmail.com">dflmoura@gmail.com</a></font></p>    <p>&nbsp;</p>    <p><font face="verdana" size="2"><b>Data de Submissão: </b> 2015-10-12</font></p>    <p><font face="verdana" size="2"><b>Data de Revisão: </b> 2016-07-16</font></p>    <p><font face="verdana" size="2"><b>Data de Aceitação: </b> 2016-08-02</font></p>     ]]></body><back>
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