<?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>S0864-215X2021000200004</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Factores de riesgo de luxación en una serie de 2732 prótesis totales de cadera]]></article-title>
<article-title xml:lang="en"><![CDATA[Risk Factors for Dislocation in a Series of 2732 Total Hip Replacements]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Rey]]></surname>
<given-names><![CDATA[Eduardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Cimbrelo]]></surname>
<given-names><![CDATA[Eduardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Madrid Hospital La Paz-IDIPaz ]]></institution>
<addr-line><![CDATA[ Madrid]]></addr-line>
<country>Spain</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<volume>35</volume>
<numero>2</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0864-215X2021000200004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0864-215X2021000200004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0864-215X2021000200004&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción: La luxación de la prótesis total de cadera puede afectar los resultados del implante, la calidad de vida del paciente, y el costo del proceso. Su etiología es multifactorial.  Objetivos:  Identificar posibles factores de riesgo relacionados con la aparición de luxación en prótesis total de cadera en una serie de casos.  Métodos:  En una serie de 2732 prótesis total de cadera, en la que hubo 92 luxaciones (3,4 %), se compararon factores relacionados con el paciente, el implante, y la técnica quirúrgica uilizada en el Hospital La Paz-IDIPaz de Madrid entre los años 2000 y 2016. Se utilizó el análisis de regresión para la significación de dichos factores.  Resultados:  De las 92 luxaciones, 62 fueron tratadas de manera conservadora (67,4 %) y 30 pacientes precisaron de cirugía de revisión (32,6 %). El estudio multivariado mostró significación estadística en los siguientes factores de riesgo: estado de la columna lumbar (p &lt; 0,001), y una pobre reconstrucción del centro de rotación de la cadera (p= 0,035), y cúpulas posicionadas fuera de las ventanas de Lewinnek (p &lt; 0,001) y del mecanismo abductor (p &lt; 0,001) en relación con la técnica quirúrgica. No hubo factores significativos en relación con el tipo de implante, diámetro de la cabeza femoral o par de fricción.  Conclusiones:  La patología lumbar aumenta el riesgo de luxación en la prótesis total de cadera. Una adecuada reconstrucción de la cadera, que incluya la posición de la cúpula y el centro de rotación de la cadera, así como del mecanismo abductor ayudaría a mejorar la tasa de inestabilidad.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  The dislocation of the total hip replacement can affect the results of the implant, the quality of life of the patient, and the cost of the process. Its etiology is multifactorial.  Objectives:  To identify possible risk factors related to the appearance of dislocation in total hip replacement in a series of cases.  Methods:  In a series of 2732 total hip prostheses, in which there were 92 dislocations (3.4%), factors related to the patient, the implant, and the surgical technique used at La Paz-IDIPaz Hospital in Madrid were compared, from 2000 to 2016. Regression analysis was used for the significance of these factors.  Results:  Out of 92 dislocations, 62 were treated conservatively (67.4%) and 30 patients required revision surgery (32.6%). The multivariate study showed statistical significance in the following risk factors: state of the lumbar spine (p &lt;0.001), and poor reconstruction of the center of rotation of the hip (p = 0.035), and domes positioned outside Lewinnek windows (p &lt;0.001) and the abductor mechanism (p &lt;0.001) in relation to the surgical technique. There were no significant factors in relation to the type of implant, diameter of the femoral head or friction torque.  Conclusions:  Lumbar pathology increases the risk of dislocation in total hip replacement. Proper hip reconstruction, including the position of the dome and the center of rotation of the hip, as well as the abductor mechanism, would help to improve the rate of instability.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[factores riesgo]]></kwd>
<kwd lng="es"><![CDATA[luxación]]></kwd>
<kwd lng="es"><![CDATA[prótesis total cadera]]></kwd>
<kwd lng="en"><![CDATA[risk factors]]></kwd>
<kwd lng="en"><![CDATA[luxation]]></kwd>
<kwd lng="en"><![CDATA[total hip replacement]]></kwd>
</kwd-group>
</article-meta>
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