<?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>2992-7749</journal-id>
<journal-title><![CDATA[Cirugía de columna (México, Ciudad de México)]]></journal-title>
<abbrev-journal-title><![CDATA[Cir. Columna]]></abbrev-journal-title>
<issn>2992-7749</issn>
<publisher>
<publisher-name><![CDATA[Asociación Mexicana de Cirujanos de Columna A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2992-77492025000200121</article-id>
<article-id pub-id-type="doi">10.35366/119622</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Calcificación del ligamento flavum ocasionando estenosis y radiculopatía lumbar: reporte de caso y revisión de la literatura]]></article-title>
<article-title xml:lang="en"><![CDATA[Calcification of the ligament flavum causing stenosis and lumbar radiculopathy: case report and literature review]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chávez López]]></surname>
<given-names><![CDATA[José Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández Bello]]></surname>
<given-names><![CDATA[Jorge Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chávez Cisneros]]></surname>
<given-names><![CDATA[Reyna Daena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto de Seguridad y Servicios Sociales de los Trabajadores al Servicio de los Poderes del Estado Hospital Regional de Alta Especialidad ]]></institution>
<addr-line><![CDATA[Morelia Michoacán]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto de Seguridad y Servicios Sociales de los Trabajadores al Servicio de los Poderes del Estado de Puebla Hospital Regional de Alta Especialidad ]]></institution>
<addr-line><![CDATA[Morelia Michoacán]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto de Seguridad y Servicios Sociales de los Trabajadores al Servicio de los Poderes del Estado de Puebla Hospital Regional de Alta Especialidad ]]></institution>
<addr-line><![CDATA[Morelia Michoacán]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2025</year>
</pub-date>
<volume>3</volume>
<numero>2</numero>
<fpage>121</fpage>
<lpage>125</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2992-77492025000200121&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2992-77492025000200121&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2992-77492025000200121&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: La calcificación del ligamento flavum es una rara enfermedad que afecta principalmente a mujeres de edad avanzada. Dicha calcificación es una condición rara en la columna lumbar; diferentes estudios concluyen en una incidencia más probable en la columna torácica baja en primer lugar y en la columna cervical en segundo lugar. Los mecanismos de la calcificación del ligamento en la columna lumbar están asociados con un estrés mecánico alto en dicho segmento; está demostrado que factores humorales y genéticos también desempeñan un rol importante para la calcificación del ligamento, esto sugiere que la calcificación de ligamento flavum está relacionada con alteración en el metabolismo óseo asociado a factores intrínsecos como son los factores mecánicos. Existen pocos casos reportados en la literatura de la presentación radicular asociada a la calcificación del ligamento flavum en la columna lumbar. En pacientes jóvenes, clínicamente puede manifestarse como mielorradiculopatía lumbar. El síndrome de cauda equina resultado de la compresión de las raíces nerviosas consiste en dolor lumbar, dolor radicular uni o bilateral, trastornos sensitivos y alteraciones en la esfera sexual y/o esfinteriana. Este síndrome tiene como causa más común una hernia discal extruida; sin embargo, cualquier lesión que ocasione compresión de las raíces nerviosas distal al cono medular, sea por tumores, traumas, calcificación u osificación de estructuras ligamentarias y complicaciones postquirúrgicas, resultarán en el síndrome de cauda equina. Presentamos el caso de un paciente femenino de 35 años de edad con calcificación del ligamento flavum en la columna lumbar, que presenta radiculopatía, alteraciones en la sensibilidad e incontinencia urinaria. La imagen por resonancia magnética demostró compresión de la cauda equina a nivel de L4-L5 del lado izquierdo. Se realizó una laminectomía descompresiva de L4 y L5 con resección del ligamento flavum calcificado. Los hallazgos histopatológicos demostraron cambios hialinos acelulares y calcificaciones distróficas del ligamento flavum. Las alteraciones en la sensibilidad y la incontinencia urinaria mejoraron posterior a la cirugía. La comprensión de los factores externos, la patogénesis y la presentación clínica apoyada en los estudios de imagen nos orientan al diagnóstico de esta poco frecuente condición.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: Calcification of the ligamentum flavum is a rare disease that affects mainly elderly women. This calcification is a rare condition in the lumbar spine, different studies conclude that it is more likely to occur in the lower thoracic spine in the first place and in the cervical spine in the second place. The mechanisms of ligament calcification in the lumbar spine are associated with high mechanical stress in this segment, it has been demonstrated that humoral and genetic factors also play an important role for ligament calcification, this suggests that ligamentum flavum calcification is related to alterations in bone metabolism associated with intrinsic factors such as mechanical factors. There are few cases reported in the literature of radicular presentation associated with calcification of the ligamentum flavum in the lumbar spine. In young patients, it may clinically manifest as lumbar myeloradiculopathy. The cauda equina syndrome resulting from compression of the nerve roots consists of lumbar pain, uni or bilateral radicular pain, sensory disorders and alterations in the sexual and/or sphincteric sphere. The most common cause of this syndrome is an extruded disc herniation; however, any lesion that causes compression of the nerve roots distal to the conus medullaris, whether due to tumors, trauma, calcification or ossification of ligament structures and post-surgical complications will result in cauda equina syndrome. We present the case of a 35-year-old female patient with calcification of the ligamentum flavum in the lumbar spine presenting radiculopathy, alterations in sensibility and urinary incontinence. Magnetic resonance imaging showed compression of the cauda equina at L4-L5 on the left side. Decompressive laminectomy of L4 and L5 with resection of the calcified ligamentum flavum was performed. Histopathological findings showed acellular hyaline changes and dystrophic calcifications of the ligamentum flavum. Alterations in sensation and urinary incontinence improved after surgery. The understanding of the external factors, the pathogenesis and the clinical presentation supported by imaging studies guide us to the diagnosis of this rare condition.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[radiculopatía]]></kwd>
<kwd lng="es"><![CDATA[calcificación]]></kwd>
<kwd lng="es"><![CDATA[ligamento flavum]]></kwd>
<kwd lng="es"><![CDATA[síndrome de cauda equina]]></kwd>
<kwd lng="es"><![CDATA[disfunción vesical]]></kwd>
<kwd lng="en"><![CDATA[radiculopathy]]></kwd>
<kwd lng="en"><![CDATA[calcification]]></kwd>
<kwd lng="en"><![CDATA[ligament flavum]]></kwd>
<kwd lng="en"><![CDATA[cauda equina syndrome]]></kwd>
<kwd lng="en"><![CDATA[bladder dysfunction]]></kwd>
</kwd-group>
</article-meta>
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