<?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>S2306-41022022000400210</article-id>
<article-id pub-id-type="doi">10.35366/109805</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Evaluación del sangrado, dolor y tiempo quirúrgico del abordaje midvasto versus parapatelar medial en artroplastía total de rodilla primaria por osteoartrosis grado IV]]></article-title>
<article-title xml:lang="en"><![CDATA[Evaluation of bleeding, pain and operative time of the midvasto versus medial parapatellar approach in primary total knee arthroplasty for grade IV osteoarthrosis]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Escobar-Carrillo]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Maqueda-Quintanilla]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arias-Arceo]]></surname>
<given-names><![CDATA[AX]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Colín-Vázquez]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rivera-Villa]]></surname>
<given-names><![CDATA[AH]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital de Traumatología y Ortopedia «Dr. Victorio de la Fuente Narváez» (UMAE TOR DVFN) Unidad Médica de Alta Especialidad ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital de Traumatología y Ortopedia «Dr. Victorio de la Fuente Narváez» (UMAE TOR DVFN) Unidad Médica de Alta Especialidad ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital de Traumatología y Ortopedia «Dr. Victorio de la Fuente Narváez» (UMAE TOR DVFN) Unidad Médica de Alta Especialidad ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Hospital de Traumatología y Ortopedia «Dr. Victorio de la Fuente Narváez» (UMAE TOR DVFN) Unidad Médica de Alta Especialidad Servicio de Reemplazos Articulares]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Hospital de Traumatología y Ortopedia «Dr. Victorio de la Fuente Narváez» (UMAE TOR DVFN) Unidad Médica de Alta Especialidad Servicio de Reemplazos Articulares]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2022</year>
</pub-date>
<volume>36</volume>
<numero>4</numero>
<fpage>210</fpage>
<lpage>215</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2306-41022022000400210&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2306-41022022000400210&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2306-41022022000400210&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Introducción:  la artroplastía total de rodilla es un procedimiento común en la cirugía ortopédica de tratamiento para gonartrosis grado IV. Este procedimiento disminuye el dolor y mejora la funcionalidad. Sin embargo, los resultados según el abordaje son distintos, no existe evidencia sobre qué abordaje quirúrgico sea claramente superior. El objetivo de este estudio es evaluar el tiempo y sangrado transquirúrgico, así como el dolor postquirúrgico del abordaje midvasto versus parapatelar medial en artroplastía total de rodilla primaria en gonartrosis grado IV.  Material y métodos:  se realizó estudio observacional, comparativo, retrospectivo del 01 de Junio de 2020 al 31 de Diciembre de 2020 incluyendo derechohabientes del Instituto Mexicano del Seguro Social, mayores de 18 años con diagnóstico de gonartrosis grado IV, programados para artroplastía total de rodilla primaria en ausencia de otra patología inflamatoria, osteotomías previas o coagulopatías.  Resultados:  noventa y nueve pacientes que fueron sometidos a abordaje midvasto (grupo M) y 100 pacientes a abordaje parapatelar medial (grupo T) con hemoglobina preoperatoria 14.7 g/l grupo M y 15.2 g/l grupo T, la reducción fue de 5.0 g/l grupo M y 4.6 g/l grupo T. Dolor en ambos grupos sin diferencia significativa; de 6.7 a 3.2 grupo M y de 6.7 a 3.1 grupo T. Tiempo quirúrgico mayor con el abordaje parapatelar medial (98.7 versus 89.2 minutos).  Conclusiones:  ambos abordajes representan excelente vía de acceso para realizar artroplastía total primaria de rodilla; sin embargo, no se encontraron diferencias significativas en el volumen de sangrado ni en la reducción del dolor, el abordaje midvasto se asoció con menor tiempo quirúrgico y menor afectación de la flexión de la rodilla, por lo que se recomienda el abordaje midvasto en pacientes sometidos a artroplastía total de rodilla primaria.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Introduction:  total knee arthroplasty is a common procedure in orthopedic surgery for treating grade IV knee osteoarthritis. This procedure reduces pain and improves functionality. However, the results according to the approach are different, it is not clear which surgical approach is clearly superior. The objective of this study is to evaluate the time and post-surgical bleeding, as well as the postoperative pain of the midvasto versus medial parapatellar approach in primary total knee arthroplasty in grade IV gonarthrosis.  Material and methods:  an observational, comparative, retrospective study was carried out from June 1, 2020 to December 31, 2020, including beneficiaries of the Mexican Social Security Institute over 18 years of age with a diagnosis of grade IV knee osteoarthritis scheduled for primary total knee arthroplasty in the absence of other inflammatory pathology, previous osteotomies or coagulopathies.  Results:  of 99 patients who underwent the midvasto approach (group M) and 100 patients to the medial parapatellar approach (group T), there was preoperative hemoglobin 14.7 g/l group M and 15.2 g/l group T, reduction was 5.0 g/l group M and 4.6 g/l group T. Significant pain reduction in both groups without significant difference; from 6.7 to 3.2 group M and from 6.7 to 3.1 group T. The surgical time was significantly longer with the medial parapatellar approach (98.7 versus 89.2 minutes).  Conclusions:  both approaches represent an excellent access route to perform primary total knee arthroplasty; however, no significant differences were found in the volume of bleeding or in the reduction of pain, the midvaste approach was associated with shorter surgical time and less involvement of flexion of the knee. Therefore, the midvasto approach is recommended in patients undergoing primary total knee arthroplasty.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[artroplastía]]></kwd>
<kwd lng="es"><![CDATA[rodilla]]></kwd>
<kwd lng="es"><![CDATA[osteoartrosis]]></kwd>
<kwd lng="es"><![CDATA[abordaje midvasto]]></kwd>
<kwd lng="en"><![CDATA[arthroplasty]]></kwd>
<kwd lng="en"><![CDATA[knee]]></kwd>
<kwd lng="en"><![CDATA[osteoarthritis]]></kwd>
<kwd lng="en"><![CDATA[midvasto approach]]></kwd>
</kwd-group>
</article-meta>
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