<?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>S2992-77492025000400253</article-id>
<article-id pub-id-type="doi">10.35366/120969</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Predisposing factors for failed back surgery syndrome following lumbar instrumentation: retrospective study]]></article-title>
<article-title xml:lang="es"><![CDATA[Factores predisponentes del síndrome de cirugía lumbar fallida tras instrumentación lumbar: un estudio retrospectivo]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cancino González]]></surname>
<given-names><![CDATA[Gonzalo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Valdés]]></surname>
<given-names><![CDATA[Julio César]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
<xref ref-type="aff" rid="A a"/>
<xref ref-type="aff" rid="A4 "/>
<xref ref-type="aff" rid="Af1"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valdez-Rodríguez]]></surname>
<given-names><![CDATA[Ariadna]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Loreto-Lucas]]></surname>
<given-names><![CDATA[Mario]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vega-Moreno]]></surname>
<given-names><![CDATA[Daniel Alejandro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Betancourt-Quiroz]]></surname>
<given-names><![CDATA[Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alanis-Maya]]></surname>
<given-names><![CDATA[Gustavo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez-Mata]]></surname>
<given-names><![CDATA[Rafael]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-González]]></surname>
<given-names><![CDATA[Ulises]]></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 del Estado Centro Médico Nacional Hospital 20 de Noviembre]]></institution>
<addr-line><![CDATA[Benito Juárez, Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional Autónoma de México Medicine Faculty ]]></institution>
<addr-line><![CDATA[Ciudad Universitaria, Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Petróleos Mexicanos High Specialty Central South Hospital Neurosurgery department]]></institution>
<addr-line><![CDATA[Tlalpan, Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Autónoma de Tamaulipas Medicine Faculty &#8220;Dr. Alberto Romo Caballero&#8221; Research department]]></institution>
<addr-line><![CDATA[Tampico Tamaulipas]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Petróleos Mexicanos Hospital Central Norte Traumatology and Orthopedics department]]></institution>
<addr-line><![CDATA[Azcapotzalco, Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af6">
<institution><![CDATA[,Petróleos Mexicanos Hospital Central Norte Spine Surgery department]]></institution>
<addr-line><![CDATA[Azcapotzalco, Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af7">
<institution><![CDATA[,Instituto de Seguridad Social del Estado de México y Municipios Oncological Neurosurgery Department ]]></institution>
<addr-line><![CDATA[San Jerónimo Chicahualco Mexico State]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af8">
<institution><![CDATA[,The American British Cowdray Medical Center Spine Surgery department ]]></institution>
<addr-line><![CDATA[Cuajimalpa, Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2025</year>
</pub-date>
<volume>3</volume>
<numero>4</numero>
<fpage>253</fpage>
<lpage>259</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2992-77492025000400253&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2992-77492025000400253&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2992-77492025000400253&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Objective:  to identify the main predisposing factors for failed back surgery syndrome (FBSS) in patients undergoing lumbar instrumentation (L4-S1) between April 2022 and March 2023.  Material and methods:  this was a retrospective, observational study involving 59 patients with persistent or recurrent lumbar pain following lumbar spine surgery. Sociodemographic and clinical data were analyzed using parametric statistics.  Results:  FBSS occurred in 59.3% of patients. The most affected age group was 61-70 years, and 61% were women. Fibrosis was present in 61% and arachnoiditis in 13.5% of cases. Obesity and overweight were observed in 72.9%, but no statistically significant association was found between FBSS and demographic variables or comorbidities.  Conclusion:  FBSS remains a prevalent and clinically significant outcome in lumbar spine surgery, with fibrosis as a potentially major factor. Future strategies should include improved surgical planning, comprehensive postoperative follow-up, and a multidisciplinary approach.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Objetivo:  identificar los principales factores predisponentes para el síndrome de cirugía lumbar fallida (FBSS, por sus siglas en inglés) en pacientes sometidos a instrumentación lumbar (L4-S1) entre abril de 2022 y marzo de 2023.  Material y métodos:  se realizó un estudio retrospectivo, observacional, que incluyó a 59 pacientes con dolor lumbar persistente o recurrente después de una cirugía de columna lumbar. Se analizaron datos sociodemográficos y clínicos utilizando estadística paramétrica.  Resultados:  el FBSS se presentó en 59.3% de los pacientes. El grupo de edad más afectado fue el de 61 a 70 años, y el 61% eran mujeres. La fibrosis estuvo presente en 61% y la aracnoiditis en 13.5% de los casos. La obesidad y el sobrepeso se observaron en 72.9%, pero no se encontró una asociación estadísticamente significativa entre el FBSS y las variables demográficas o las comorbilidades.  Conclusión:  el FBSS sigue siendo un resultado prevalente y clínicamente significativo en la cirugía de columna lumbar, siendo la fibrosis un factor potencialmente importante. Las estrategias futuras deberían incluir una mejor planificación quirúrgica, un seguimiento postoperatorio integral y un enfoque multidisciplinario.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[failed back surgery syndrome]]></kwd>
<kwd lng="en"><![CDATA[spinal fusion]]></kwd>
<kwd lng="en"><![CDATA[risk factors]]></kwd>
<kwd lng="en"><![CDATA[predisposing factors]]></kwd>
<kwd lng="en"><![CDATA[postoperative complications]]></kwd>
<kwd lng="en"><![CDATA[chronic back pain]]></kwd>
<kwd lng="es"><![CDATA[síndrome de columna fallida]]></kwd>
<kwd lng="es"><![CDATA[fusión vertebral]]></kwd>
<kwd lng="es"><![CDATA[factores de riesgo]]></kwd>
<kwd lng="es"><![CDATA[factores predisponentes]]></kwd>
<kwd lng="es"><![CDATA[complicaciones postoperatorias]]></kwd>
<kwd lng="es"><![CDATA[dolor de espalda crónico]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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<article-title xml:lang=""><![CDATA[Perfil del paciente con síndrome de columna multioperada en el Instituto Nacional de Rehabilitación. Análisis comparativo]]></article-title>
<source><![CDATA[Cir Cir]]></source>
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