<?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>0864-215X</journal-id>
<journal-title><![CDATA[Revista Cubana de Ortopedia y Traumatología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cubana Ortop Traumatol]]></abbrev-journal-title>
<issn>0864-215X</issn>
<publisher>
<publisher-name><![CDATA[Editorial Ciencias Médicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0864-215X2023000400004</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Descompresión de fosa posterior sin duroplastia expansiva en adulto con malformación de Chiari tipo 1-siringomielia]]></article-title>
<article-title xml:lang="en"><![CDATA[Posterior fossa decompression without expansive duroplasty in an adult with Chiari malformation type 1-syringomyelia]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Horta Tamayo]]></surname>
<given-names><![CDATA[Ernesto Enrique]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Acosta González]]></surname>
<given-names><![CDATA[Luis Cesar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ortega Raez]]></surname>
<given-names><![CDATA[Diana Rosa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Suárez Cruz]]></surname>
<given-names><![CDATA[Martha]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Ciencias Médicas de Holguín Facultad &#8220;Mariana Grajales Coello&#8221; ]]></institution>
<addr-line><![CDATA[ Holguín]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital Clínico- Quirúrgico &#8220;Lucía Iñiguez Landín&#8221;  ]]></institution>
<addr-line><![CDATA[ Holguín]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2023</year>
</pub-date>
<volume>37</volume>
<numero>4</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0864-215X2023000400004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0864-215X2023000400004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0864-215X2023000400004&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción:  La malformación de Chiari tipo 1 incluye un grupo heterogéneo de malformaciones congénitas, caracterizadas por el descenso caudal del cerebelo a través del foramen magno. En un 30-70 % de los casos tiene siringomielia asociada. Existen controversias en torno a la técnica quirúrgica ideal.  Objetivo:  Presentar un caso de MC-1 asociada a siringomielia en el que no se aplica una duroplastia expansiva.  Presentación de caso:  Paciente femenina de 43 años, con antecedentes de hipertensión arterial. Acudió a consulta neuroquirúrgica por dolor cervical irradiado al miembro superior derecho. Al examen neurológico mostró signos de afectación de primera y segunda motoneurona. La resonancia magnética confirmó el diagnóstico de MC-1. Se intervino quirúrgicamente mediante descompresión de fosa posterior sin duroplastia expansiva. La paciente evolucionó sin complicaciones y egresó a las 48 horas. Durante el seguimiento mejoraron las manifestaciones parestésicas; sin embargo, el examen neurológico se mantuvo igual. A los seis meses, la resonancia magnética indicó una marcada disminución de la siringomielia y la reconformación de la cisterna magna. Hasta los 18 meses del tratamiento, los síntomas no habían empeorado y la capacidad funcional resultaba aceptable (Karnofsky 90/100).  Conclusiones:  La descompresión de fosa posterior sin duroplastia expansiva, seguida de re-permeabilización microquirúrgica del foramen de Magendie, tuvo resultados favorables en este caso.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  Chiari malformation type 1 includes a heterogeneous group of congenital malformations, characterized by caudal descent of the cerebellum through the foramen magnum. It has associated syringomyelia in 30-70% of cases. Controversies exist regarding the ideal surgical technique.  Objective:  To present a case of MC-1 associated with syringomyelia in which an expansive duroplasty is not applied.  Case report:  Female patient, 43 years old, with history of arterial hypertension. She went to the neurosurgical consultation for cervical pain radiating to the right upper limb. On neurological examination, she showed signs of first and second motor neuron involvement. MRI confirmed the diagnosis of MC-1. She underwent surgery by decompression of the posterior fossa without expansive duroplasty. The patient evolved without complications and she was discharged after 48 hours. During the follow-up, the paresthetic manifestations improved; however, the neurological examination remained the same. At six months, MRI indicated a marked decrease in syringomyelia and reshaping of the cisterna magna. Until 18 months after treatment, symptoms had not worsened and functional capacity was acceptable (Karnofsky 90/100).  Conclusions:  Posterior fossa decompression without expansive duroplasty, followed by microsurgical re-permeabilization of Magendie's foramen, had favorable results in our case.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[malformación de Chiari]]></kwd>
<kwd lng="es"><![CDATA[siringomielia]]></kwd>
<kwd lng="es"><![CDATA[descompresión de fosa posterior]]></kwd>
<kwd lng="es"><![CDATA[duroplastia]]></kwd>
<kwd lng="en"><![CDATA[Chiari malformation]]></kwd>
<kwd lng="en"><![CDATA[syringomyelia]]></kwd>
<kwd lng="en"><![CDATA[posterior fossa decompression]]></kwd>
<kwd lng="en"><![CDATA[duroplasty]]></kwd>
</kwd-group>
</article-meta>
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