<?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>S2306-41022025000100047</article-id>
<article-id pub-id-type="doi">10.35366/118853</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Distal realignment and medial patellofemoral complex reconstruction for the correction of patellofemoral instability in a patient with transtibial amputation]]></article-title>
<article-title xml:lang="es"><![CDATA[Realineación distal y reconstrucción del complejo patelofemoral medial para la corrección de la inestabilidad patelofemoral en un paciente con amputación transtibial]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Masquijo]]></surname>
<given-names><![CDATA[JJ]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Yunes]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[de Angeli]]></surname>
<given-names><![CDATA[LRA]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Sanatorio Allende  ]]></institution>
<addr-line><![CDATA[Córdoba ]]></addr-line>
<country>Argentina</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,University of Sao Paulo Hospital Israelita Albert Einstein Department of Orthopedics and Traumatology]]></institution>
<addr-line><![CDATA[Sao Paulo ]]></addr-line>
<country>Brazil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>02</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>02</month>
<year>2025</year>
</pub-date>
<volume>39</volume>
<numero>1</numero>
<fpage>47</fpage>
<lpage>51</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2306-41022025000100047&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2306-41022025000100047&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2306-41022025000100047&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: Patellofemoral instability (PFI) is a multifactorial condition typically observed following initial traumatic patellar dislocation. PFI depends on various factors such as limb alignment, bony structure, and the integrity of static and dynamic stabilizers. Patients with below-knee amputation have a higher risk of experiencing PFI. This report describes a successful case involving a patient with patellofemoral instability and a transtibial amputation. The patient was effectively treated with distal realignment and patellar stabilization achieved by reconstructing the medial patellofemoral complex (MPFC).]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: La inestabilidad patelofemoral es una condición multifactorial que abarca un espectro de manifestaciones que van desde subluxaciones hasta luxaciones completas de la rótula. Desde el punto de vista etiológico, puede originarse a partir de diversas anomalías anatómicas, incluyendo la alineación de las extremidades, la morfología ósea de la articulación patelofemoral y la integridad de los estabilizadores estáticos y dinámicos. Los pacientes con amputación por debajo de la rodilla tienen un mayor riesgo de experimentar inestabilidad patelofemoral. Este informe describe un caso que involucra a un paciente con inestabilidad patelofemoral y una amputación transtibial, tratado de manera efectiva con realineación distal y estabilización patelar lograda mediante la reconstrucción del complejo patelofemoral medial (CPFM).]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[patellofemoral instability]]></kwd>
<kwd lng="en"><![CDATA[transtibial amputation]]></kwd>
<kwd lng="en"><![CDATA[adolescent]]></kwd>
<kwd lng="en"><![CDATA[medial patellofemoral complex]]></kwd>
<kwd lng="es"><![CDATA[inestabilidad patelofemoral]]></kwd>
<kwd lng="es"><![CDATA[amputación transtibial]]></kwd>
<kwd lng="es"><![CDATA[adolescente]]></kwd>
<kwd lng="es"><![CDATA[complejo patelofemoral medial]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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