<?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>1870-7203</journal-id>
<journal-title><![CDATA[Acta médica Grupo Ángeles]]></journal-title>
<abbrev-journal-title><![CDATA[Acta méd. Grupo Ángeles]]></abbrev-journal-title>
<issn>1870-7203</issn>
<publisher>
<publisher-name><![CDATA[Grupo Ángeles, Servicios de Salud]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-72032021000400539</article-id>
<article-id pub-id-type="doi">10.35366/102542</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Resección de la tibia proximal con reconstrucción endoprotésica y del mecanismo extensor de rodilla en paciente con osteosarcoma]]></article-title>
<article-title xml:lang="en"><![CDATA[Proximal resection of the tibia with endoprosthetic and extensor knee mechanism reconstruction in a patient with osteosarcoma]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tinoco Téllez]]></surname>
<given-names><![CDATA[Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Espinosa Castolo]]></surname>
<given-names><![CDATA[Martín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Marín y Santillán]]></surname>
<given-names><![CDATA[Ernesto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gálvez Valdovinos]]></surname>
<given-names><![CDATA[Ramiro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Funes Rodríguez]]></surname>
<given-names><![CDATA[Juan Francisco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Domínguez Carrillo]]></surname>
<given-names><![CDATA[Luis Gerardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Angeles León División de Cirugía ]]></institution>
<addr-line><![CDATA[León Guanajuato]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital Angeles León UMAE Bajío ]]></institution>
<addr-line><![CDATA[León Guanajuato]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital Angeles León División de Cirugía ]]></institution>
<addr-line><![CDATA[León Guanajuato]]></addr-line>
<country>México</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Hospital Angeles León  ]]></institution>
<addr-line><![CDATA[León Guanajuato]]></addr-line>
<country>México</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>19</volume>
<numero>4</numero>
<fpage>539</fpage>
<lpage>543</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-72032021000400539&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-72032021000400539&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-72032021000400539&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Introducción:  La resección de la tibia proximal con reconstrucción endoprotésica es un procedimiento complejo de conservación de la extremidad en presencia de tumores de la tibia proximal. Avances recientes en implantes y en las técnicas quirúrgicas han hecho que esta opción sea preferible a la amputación para muchos pacientes. La supervivencia a largo plazo y las tasas de recurrencia son similares entre el salvamento y la ablación de la extremidad.  Caso clínico:  Femenino de 55 años con dolor de seis meses de evolución en tercio superior de pierna izquierda a 2 cm por debajo de tuberosidad tibial y aumento de volumen en dicha zona, con estudios de imagen y biopsia se confirma osteosarcoma, sin metástasis; se realiza resección de la tibia proximal y reconstrucción endoprotésica.  Conclusiones:  La resección de la tibia proximal con reconstrucción protésica puede estar asociada con complicaciones significativas; sin embargo, éstas pueden minimizarse con planificación preoperatoria adecuada y una técnica meticulosa.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Introduction:  The proximal resection of the tibia with endoprosthetic reconstruction is a complex limb preservation procedure in the presence of tumors of the proximal tibia. Recent advances in implants and surgical techniques have made this option preferable to amputation for many patients. Long-term survival and recurrence rates are similar between limb salvage and limb ablation.  Case report:  A 55-year-old woman with the pain of six months of evolution in the upper third of the left leg to 2 cm below the tibial tuberosity and increased volume in this area, with imaging and biopsy studies, confirmed osteosarcoma, without metastasis; proximal tibial resection and endoprosthetic reconstruction were performed.  Conclusions:  The proximal resection of the tibia with prosthetic reconstruction may be associated with significant complications; however, these can be minimized with proper preoperative planning and meticulous technique.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Tumor óseo]]></kwd>
<kwd lng="es"><![CDATA[resección]]></kwd>
<kwd lng="es"><![CDATA[reconstrucción de la tibia proximal]]></kwd>
<kwd lng="es"><![CDATA[endoprótesis]]></kwd>
<kwd lng="en"><![CDATA[Bone tumor]]></kwd>
<kwd lng="en"><![CDATA[resection]]></kwd>
<kwd lng="en"><![CDATA[proximal tibial reconstruction]]></kwd>
<kwd lng="en"><![CDATA[endoprosthesis]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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