<?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>2306-4102</journal-id>
<journal-title><![CDATA[Acta ortopédica mexicana]]></journal-title>
<abbrev-journal-title><![CDATA[Acta ortop. mex]]></abbrev-journal-title>
<issn>2306-4102</issn>
<publisher>
<publisher-name><![CDATA[Colegio Mexicano de Ortopedia y Traumatología A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2306-41022022000300152</article-id>
<article-id pub-id-type="doi">10.35366/109690</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Neuromodulación percutánea utilizando radiofrecuencia pulsada versus crioablación en pacientes con síndrome facetario lumbar]]></article-title>
<article-title xml:lang="en"><![CDATA[Percutaneous neuromodulation with pulsating radiofrequency vs cryoablation for the treatment of patients with lumbar facet syndrome]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Ramos]]></surname>
<given-names><![CDATA[LF]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hermida-Ochoa]]></surname>
<given-names><![CDATA[EH]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Benavides-Rodríguez]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hermida-Ochoa]]></surname>
<given-names><![CDATA[JC]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad La Salle México Hospital de Ortopedia para Niños «Dr. Germán Díaz Lombardo» Facultad Mexicana de Medicina]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital de Ortopedia para Niños «Dr. Germán Díaz Lombardo»  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital de Ortopedia para Niños «Dr. Germán Díaz Lombardo»  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Hospital de Ortopedia para Niños «Dr. Germán Díaz Lombardo» Centro de Investigación y Laboratorio de Biomecánica (CILAB) ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2022</year>
</pub-date>
<volume>36</volume>
<numero>3</numero>
<fpage>152</fpage>
<lpage>158</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2306-41022022000300152&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2306-41022022000300152&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2306-41022022000300152&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Introducción:  El dolor en columna lumbar afecta a un alto porcentaje de la población y presenta un significativo impacto socioeconómico. El síndrome facetario lumbar tiene una prevalencia entre 15-31% con incidencia a lo largo de la vida de hasta 52% en algunas series. Debido al empleo de distintos tipos de tratamiento y diversos criterios de selección de los pacientes, la tasa de éxito varía en la literatura.  Objetivo:  Comparar resultados de tratamiento con rizólisis aplicando radiofrecuencia pulsada versus crioablación en pacientes con diagnóstico de síndrome facetario lumbar.  Material y métodos:  De Enero de 2019 a Noviembre de 2019, ocho pacientes fueron divididos aleatoriamente en dos grupos: el grupo A tratados con radiofrecuencia pulsada y el grupo B tratados con crioablación. Se evaluó el dolor con la escala visual análoga y el índice de discapacidad de dolor lumbar de Oswestry a las cuatro semanas, además de tres y seis meses.  Resultados:  El seguimiento fue de seis meses. De forma inmediata los ocho pacientes (100%) refirieron mejoría de los síntomas y del dolor. De los cuatro pacientes que se encontraban en limitación funcional intensa, uno pasó a estar sin limitación funcional, dos de ellos pasaron a limitación funcional mínima y uno a limitación funcional moderada al primer mes; se reportaron diferencias estadísticamente significativas.  Conclusiones:  Ambos tratamientos controlan el dolor en el corto plazo; también hay una mejoría de las capacidades físicas. La morbilidad que acompaña a la neurólisis, ya sea radiofrecuencia o crioablación, es muy baja.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Introduction:  Lumbar spine pain affects a high percentage of the population and has a significant socioeconomic impact. Lumbar facet syndrome has a prevalence between 15-31% with lifetime incidence of up to 52% in some series. Due to the use of different types of treatment and different patient selection criteria, the success rate varies in the literature.  Objective:  To compare results of treatment with rhizolysis applying pulsed radiofrequency versus cryoablation in patients diagnosed with lumbar facet syndrome.  Material and methods:  From January 2019 to November 2019, eight patients were randomly divided into two groups: group A treated with pulsed radiofrequency and group B treated with cryoablation. Pain was assessed with the visual analogue scale and the Oswestry low back pain disability index at four weeks, in addition to three and six months.  Results:  Follow-up was six months. Immediately the eight patients (100%) reported improvement in symptoms and pain. Of the four patients who were in intense functional limitation, one of them became without functional limitation, and two of them went to minimum functional limitation and one to moderate functional limitation at the first month, statistically significant differences were reported.  Conclusions:  Both treatments control pain in the short term; there is also an improvement in physical abilities. The morbidity accompanying neurolysis either radiofrequency or cryoablation is very low.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[rizólisis]]></kwd>
<kwd lng="es"><![CDATA[radiofrecuencia pulsada]]></kwd>
<kwd lng="es"><![CDATA[crioablación]]></kwd>
<kwd lng="es"><![CDATA[síndrome facetario]]></kwd>
<kwd lng="en"><![CDATA[rhizolysis]]></kwd>
<kwd lng="en"><![CDATA[pulsed radiofrequency]]></kwd>
<kwd lng="en"><![CDATA[cryoablation]]></kwd>
<kwd lng="en"><![CDATA[facet syndrome]]></kwd>
</kwd-group>
</article-meta>
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