<?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>S2306-41022022000300146</article-id>
<article-id pub-id-type="doi">10.35366/109689</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Evaluación funcional y calidad de vida en megaprótesis implantadas por tumores musculoesqueléticos en miembro inferior]]></article-title>
<article-title xml:lang="en"><![CDATA[Functional evaluation and quality of life in megaprostheses implanted by musculoskeletal tumors in the lower limb]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gómez-Muñoz]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Navarro-Ruiz de Adana]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cebrián-Parra]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Maroto]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Marco]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Clínico Universitario de San Carlos Unidad de Traumatología Oncológica ]]></institution>
<addr-line><![CDATA[Madrid ]]></addr-line>
<country>España</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Complutense de Madrid Facultad de Medicina ]]></institution>
<addr-line><![CDATA[Madrid ]]></addr-line>
<country>Spain</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>146</fpage>
<lpage>151</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2306-41022022000300146&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2306-41022022000300146&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2306-41022022000300146&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Introducción:  La resección amplia es el tratamiento quirúrgico de elección en los tumores malignos musculoesqueléticos, que con frecuencia asientan en la pelvis y en los miembros inferiores. La reconstrucción mediante megaprótesis se ha impuesto en los últimos años como primera opción en la cirugía de preservación de la extremidad.  Material y métodos:  Estudio retrospectivo descriptivo serie de casos, incluye 30 pacientes intervenidos entre 2011 y 2019 de tumores musculoesqueléticos de pelvis y miembro inferior. En todos ellos valoramos la tasa de complicaciones y los resultados funcionales mediante el índice MSTS (Musculoskeletal Tumor Society).  Resultados:  Se realizó un seguimiento de 40.8 meses (12-101.7). En nueve pacientes (30%) se realizaron resecciones y reconstrucciones pélvicas, a 11 pacientes (36.7%) se les implantaron megaprótesis de cadera por afectación femoral, en tres de los pacientes (10%) se realizó resección del fémur completo y en siete pacientes (23.3%) reconstrucción protésica de la rodilla. El resultado funcional medio de la escala MSTS fue de 72.5% (rango: 40-95%) y la tasa de complicaciones de 56.7% (17 pacientes), siendo la recurrencia tumoral (29%) la principal complicación.  Conclusión:  La reconstrucción mediante megaprótesis ofrece buenos resultados funcionales a los pacientes dentro de la cirugía de resección radical, permitiendo realizar una vida relativamente normal.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Introduction:  Radical resection is the surgical treatment of choice in musculoskeletal malignancies, which often settle in the pelvis and lower limbs. Megaprothesis reconstruction has been imposed in recent years as the gold standard in limb preservation surgery.  Material and methods:  Descriptive retrospective study series of cases, including 30 patients operated between 2011 and 2019 of musculoskeletal pelvic and lower limb tumors at our institution that underwent limb-sparing reconstruction with the megaprosthesis. Functional results according to the MSTS (Musculoskeletal Tumor Society) index and complication rate were analyzed.  Results:  The average follow-up was 40.8 months (12-101.7). Nine patients (30%) underwent pelvic resections and reconstructions, 11 patients (36.7%) underwent hip reconstruction with megaprothesis due to femoral involvement, in three patients (10%) complete femur resection was performed, and seven patients (23.3%) underwent prosthetic reconstruction of the knee. The mean MSTS score was 72.5% (range: 40-95%), and the complication rate was 56.7% (17 patients), being de tumoral recurrence (29%) the main complication.  Conclusion:  Tumor megaprothesis give satisfying functional results, allowing the patients to realize a relatively normal life after a lower limb-sparing surgery.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[cirugía conservación extremidad]]></kwd>
<kwd lng="es"><![CDATA[prótesis tumoral]]></kwd>
<kwd lng="es"><![CDATA[resultados funcionales]]></kwd>
<kwd lng="es"><![CDATA[megaprótesis]]></kwd>
<kwd lng="es"><![CDATA[sarcoma]]></kwd>
<kwd lng="en"><![CDATA[limb salvage]]></kwd>
<kwd lng="en"><![CDATA[tumor endoprostheses]]></kwd>
<kwd lng="en"><![CDATA[functional outcomes]]></kwd>
<kwd lng="en"><![CDATA[megaprothesis]]></kwd>
<kwd lng="en"><![CDATA[sarcoma]]></kwd>
</kwd-group>
</article-meta>
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