<?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>S2306-41022025000400197</article-id>
<article-id pub-id-type="doi">10.35366/120451</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Utilidad de la artroplastía total de rodilla asistida por robot en pacientes con canal femoral ocupado]]></article-title>
<article-title xml:lang="en"><![CDATA[Utility of robotic-assisted total knee arthroplasty in patients with an occupied femoral canal]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ilizaliturri-Sánchez]]></surname>
<given-names><![CDATA[VM]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-Rodríguez]]></surname>
<given-names><![CDATA[IF]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Ramos]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Nacional de Rehabilitación «Luis Guillermo Ibarra Ibarra» División de Reconstrucción Articular de Cadera y Rodilla ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Nacional de Rehabilitación «Luis Guillermo Ibarra Ibarra»  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Nacional de Rehabilitación «Luis Guillermo Ibarra Ibarra»  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2025</year>
</pub-date>
<volume>39</volume>
<numero>4</numero>
<fpage>197</fpage>
<lpage>203</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2306-41022025000400197&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2306-41022025000400197&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2306-41022025000400197&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Introducción:  La presencia de implantes que ocupan el canal femoral es frecuente en pacientes que se someterán a una artroplastía total de rodilla (ATR). El uso de alineación electrónica o asistida por robot vuelve innecesario el uso de las guías intramedulares para la alineación del componente femoral en pacientes con canal femoral ocupado.  Material y métodos:  Presentamos una cohorte prospectiva de 25 pacientes en quienes se realizó artroplastía total de rodilla asistida por robot que presentaban cirugía femoral previa ipsilateral resultando en canal femoral ocupado.  Resultados:  Veintiún mujeres y cuatro hombres, con una media de edad de 62 años de edad fueron incluidos. Catorce rodillas izquierdas y 11 derechas; 22 pacientes tenían prótesis de cadera y tres osteosíntesis de fémur proximal. La alineación previa a la cirugía presentaba 16 rodillas con deformidad en valgo (promedio 11o, rango 3-22o) y nueve en varo (promedio 8.9o, rango 0.5-18.5o). La alineación de la artroplastía total de rodilla fue cinco en neutro (0o medidos), 11 en valgo de 1.3o (rango 0.5-3.5o) y nueve en varo de 1.5o (rango 0.5-2.5o). La media del valor de WOMAC prequirúrgico fue 43 puntos y postquirúrgico 14 puntos.  Conclusiones:  Presentamos una cohorte de pacientes con grado moderado a severo de deformidad en varo y valgo con canal femoral ocupado en los que se utilizó alineación electrónica con ATR asistida por robot (AR) sin el uso de guías intramedulares. Concluimos que la alineación electrónica de artroplastía total de rodilla puede ser obtenida satisfactoriamente en pacientes con canal femoral ocupado.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Introduction:  The presence of implants that occupy the femoral canal is frequent in patients undergoing ipsilateral total knee replacement (TKR). The use of electronic alignment and robotic assistance make intramedullary alignment unnecessary and could be adequate in situations with an occupied femoral canal (OFC).  Material and methods:  We present a prospective cohort of 25 patients who underwent robotic alignment TKR and had prior ipsilateral surgery in the femur that resulted in occupied femoral canal.  Results:  We had 21 female, four male patients, with an average age of 62 years. There were 14 left knees, and 11 right knees. Twenty-two patients had a hip arthroplasty and three had femur osteosynthesis. Alignment prior to surgery was 16 valgus knees (average 11o, 3-22o) and nine varus knees (average 9.5o, 0.5-18.5o). TKR alignment was five neutral (0o as measured with the robot), 11 valgus 1.3o (range 0.5-3.5o) and 8 varus 1.5o (range 0.5- 2.5o). The average preoperative WOMAC scores was 43 points, postoperative 14 points.  Conclusions:  We present a cohort of patients with moderate to severe varus and valgus knee deformities with an occupied femoral canal that were electronic alignment during robot-assisted (RA) TKR without the use of an intramedullary alignment (IMA) rod. We conclude electronic alignment of TKR can be performed successfully in patients with occupied femoral canal.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[reemplazo robótico]]></kwd>
<kwd lng="es"><![CDATA[rodilla]]></kwd>
<kwd lng="es"><![CDATA[deformidad]]></kwd>
<kwd lng="es"><![CDATA[varo]]></kwd>
<kwd lng="es"><![CDATA[valgo]]></kwd>
<kwd lng="en"><![CDATA[robotic replacement]]></kwd>
<kwd lng="en"><![CDATA[knee]]></kwd>
<kwd lng="en"><![CDATA[deformity]]></kwd>
<kwd lng="en"><![CDATA[varus]]></kwd>
<kwd lng="en"><![CDATA[valgus]]></kwd>
</kwd-group>
</article-meta>
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<article-title xml:lang=""><![CDATA[Comparable results in total knee arthroplasty using the ROSA knee system versus the conventional technique: A retrospective propensity-matched cohort study]]></article-title>
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