<?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>S2306-41022021000100061</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Perfil clínico y bacteriológico en pacientes con artroplastía tumoral de rodilla e infección periprotésica temprana]]></article-title>
<article-title xml:lang="en"><![CDATA[Clinical and bacteriological profile in patients with knee tumor arthroplasty and early periprosthetic infection]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alcántara-Corona]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cario-Méndez]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Amaya-Zepeda]]></surname>
<given-names><![CDATA[RA]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Álvarez-Jiménez]]></surname>
<given-names><![CDATA[AV]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital de Ortopedia UMAE de Traumatología, Ortopedia y Rehabilitación «Dr. Victorio de la Fuente Narváez» Servicio de Cirugía de Tumores Óseos]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital de Ortopedia UMAE de Traumatología, Ortopedia y Rehabilitación «Dr. Victorio de la Fuente Narváez» Servicio de Cirugía de Tumores Óseos]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital de Ortopedia UMAE de Traumatología, Ortopedia y Rehabilitación «Dr. Victorio de la Fuente Narváez» Servicio de Cirugía de Tumores Óseos]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Nacional Autónoma de México  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>02</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>02</month>
<year>2021</year>
</pub-date>
<volume>35</volume>
<numero>1</numero>
<fpage>61</fpage>
<lpage>68</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2306-41022021000100061&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2306-41022021000100061&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2306-41022021000100061&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Introducción:  A nivel nacional e internacional son pocos los estudios sobre infección periprotésica tumoral temprana en rodilla. Presentamos una revisión de pacientes operados por artroplastía tumoral de rodilla, obteniendo información sobre el perfil clínico y bacteriológico de las infecciones periprotésicas tumorales tempranas.  Material y métodos:  Estudio observacional, retrospectivo y descriptivo. Revisión de expedientes de pacientes operados con artroplastía tumoral de rodilla del 01 de Enero de 2013 al 31 de Diciembre de 2017 y seguimiento mínimo de dos años.  Resultados:  35 pacientes con edad promedio de 32 años, rodilla izquierda 71.4%, 77.1% afección en fémur distal, 54.2% reportado osteosarcoma. Complicaciones en 82.8% de pacientes, retención protésica 62.8%; la infección periprotésica representa 34.2% de las complicaciones de forma temprana en 90% de casos. Osteosarcomas y TCG presentaron infección temprana en igual proporción (44%). La comorbilidad más común fue sobrepeso/obesidad en 66%, tabaquismo en 55%; 55% de pacientes infectados recibió quimioterapia (neoadyuvante o adyuvante), 58% de las bacterias aisladas fueron Staphylococcus sp. 83.3% de bacterias mostraba resistencia, 66% de pacientes infectados requirió manejo radical.  Conclusiones:  La infección periprotésica temprana representa una patología devastadora en nuestra institución. Se logra retención protésica en 66%. En nuestra unidad el perfil bacteriológico es resistente.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Introduction:  At the national and international levels, there are few studies on early knee tumor periprosthetic infection. We present a review of patients operated by knee tumor arthroplasty, obtaining information on the clinical and bacteriological profile of early tumor periprosthetic infections.  Material and methods:  Observational, retrospective and descriptive study, review of patient records with knee tumor replacement, from 1 January 2013, to 31 December 2017 and minimum follow-up of 2 years.  Results:  35 patients with average age 32. Left knee 71.4%, 77.1% distal femur, 54.2% was osteosarcoma. Complications in 82.8% of patients, prosthetic retention 62.8%; periprosthetic infection accounts for 34.2% of early complications in 90% of cases. Osteosarcomas and GCT had early infection in equal proportion (44%). The most common comorbidity was overweight/obesity at 66%, smoking by 55%. 55% of infected patients received chemotherapy. 58% of the isolated bacteria were Staphylococcus sp. 83.3% of bacteria showed antibiotic resistance. 66% of infected patients required radical management.  Conclusions:  Early periprosthetic infection represents a devastating pathology in our institution. Prosthetic retention is achieved at 66%. In our unit the bacteriological profile is resistant.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Tumor]]></kwd>
<kwd lng="es"><![CDATA[musculoesquelético]]></kwd>
<kwd lng="es"><![CDATA[infección]]></kwd>
<kwd lng="es"><![CDATA[artroplastía]]></kwd>
<kwd lng="es"><![CDATA[bacteriológico]]></kwd>
<kwd lng="en"><![CDATA[Tumor]]></kwd>
<kwd lng="en"><![CDATA[musculoskeletal]]></kwd>
<kwd lng="en"><![CDATA[infection]]></kwd>
<kwd lng="en"><![CDATA[arthroplasty]]></kwd>
<kwd lng="en"><![CDATA[bacteriological]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<collab>Secretaría de Salud</collab>
<article-title xml:lang=""><![CDATA[Diagnóstico oportuno de osteosarcoma en niños y adolescentes en primer y segundo nivel de atención médica]]></article-title>
<source><![CDATA[Guía Práctica Clínica]]></source>
<year>2013</year>
<page-range>1-52</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Greenspan]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Jundt]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Remagen]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
</person-group>
<source><![CDATA[Differential diagnosis in orthopaedic oncology]]></source>
<year>2007</year>
<edition>2</edition>
<publisher-loc><![CDATA[Philadelphia, Pa ]]></publisher-loc>
<publisher-name><![CDATA[Lippincott Williams &amp; Wilkins]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<collab>Secretaría de Salud</collab>
<article-title xml:lang=""><![CDATA[Tratamiento de los tumores benignos de tejidos blandos en adultos en el tercer nivel de atención]]></article-title>
<source><![CDATA[Guía Práctica Clínica]]></source>
<year>2012</year>
<volume>43</volume>
</nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Capanna]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Scoccianti]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Frenos]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Vilardi]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Beltrami]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Campanacci]]></surname>
<given-names><![CDATA[DA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[What Was the survival of megaprostheses in lower limb reconstructions after tumor resections?]]></article-title>
<source><![CDATA[Clin Orthop Relat Res]]></source>
<year>2015</year>
<volume>473</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>820-30</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Smolle]]></surname>
<given-names><![CDATA[MA]]></given-names>
</name>
<name>
<surname><![CDATA[Andreou]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Tunn]]></surname>
<given-names><![CDATA[PU]]></given-names>
</name>
<name>
<surname><![CDATA[Leithner]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Advances in tumour endoprostheses: a systematic review]]></article-title>
<source><![CDATA[EFORT Open Rev]]></source>
<year>2019</year>
<volume>4</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>445-59</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pala]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Trovarelli]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Calabro]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Angelini]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Abati]]></surname>
<given-names><![CDATA[CN]]></given-names>
</name>
<name>
<surname><![CDATA[Ruggieri]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Survival of modern knee tumor megaprostheses: failures, functional results, and a comparative statistical analysis]]></article-title>
<source><![CDATA[Clin Orthop Relat Res]]></source>
<year>2015</year>
<volume>473</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>891-9</page-range></nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Medellin]]></surname>
<given-names><![CDATA[MR]]></given-names>
</name>
<name>
<surname><![CDATA[Fujiwara]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Clark]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Stevenson]]></surname>
<given-names><![CDATA[JD]]></given-names>
</name>
<name>
<surname><![CDATA[Parry]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Jeys]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mechanisms of failure and survival of total femoral endoprosthetic replacements]]></article-title>
<source><![CDATA[Bone Joint J]]></source>
<year>2019</year>
<volume>101</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>522-8</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Henderson]]></surname>
<given-names><![CDATA[ER]]></given-names>
</name>
<name>
<surname><![CDATA[O&#8217;Connor]]></surname>
<given-names><![CDATA[MI]]></given-names>
</name>
<name>
<surname><![CDATA[Ruggieri]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Windhager]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Funovics]]></surname>
<given-names><![CDATA[PT]]></given-names>
</name>
<name>
<surname><![CDATA[Gibbons]]></surname>
<given-names><![CDATA[CL]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Classification of failure of limb salvage after reconstructive surgery for bone tumours: A modified system including biological and expandable reconstructions]]></article-title>
<source><![CDATA[Bone Joint J]]></source>
<year>2014</year>
<volume>96</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>1436-40</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Arano]]></surname>
<given-names><![CDATA[MM]]></given-names>
</name>
<name>
<surname><![CDATA[Huerta]]></surname>
<given-names><![CDATA[GG]]></given-names>
</name>
<name>
<surname><![CDATA[Tena]]></surname>
<given-names><![CDATA[SM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[VRJ. Diagnóstico y tratamiento de las infecciones asociadas a dispositivos ortopédicos prótesis y/o material de osteosíntesis]]></article-title>
<source><![CDATA[Guía Práctica Clínica gpc]]></source>
<year>2013</year>
<page-range>1-66</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gonzalez]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Hagerling]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Werb]]></surname>
<given-names><![CDATA[Z]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Roles of the immune system in cancer: from tumor initiation to metastatic progression]]></article-title>
<source><![CDATA[Genes Dev]]></source>
<year>2018</year>
<volume>32</volume>
<numero>19-20</numero>
<issue>19-20</issue>
<page-range>1267-84</page-range></nlm-citation>
</ref>
<ref id="B11">
<label>11</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zuidhof R-]]></surname>
<given-names><![CDATA[JWJ]]></given-names>
</name>
<name>
<surname><![CDATA[Lowik]]></surname>
<given-names><![CDATA[CAM]]></given-names>
</name>
<name>
<surname><![CDATA[Ploegmakers]]></surname>
<given-names><![CDATA[JJW]]></given-names>
</name>
<name>
<surname><![CDATA[Dijkstra]]></surname>
<given-names><![CDATA[SPD]]></given-names>
</name>
<name>
<surname><![CDATA[Wouthuyzen-Bakker]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Jutte]]></surname>
<given-names><![CDATA[PC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Periprosthetic joint infection in orthopaedic surgical oncology]]></article-title>
<source><![CDATA[Ann Joint]]></source>
<year>2019</year>
<volume>4</volume>
<page-range>26</page-range></nlm-citation>
</ref>
<ref id="B12">
<label>12</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Haddad]]></surname>
<given-names><![CDATA[FS]]></given-names>
</name>
<name>
<surname><![CDATA[Ngu]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Negus]]></surname>
<given-names><![CDATA[JJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Prosthetic joint infections and cost analysis?]]></article-title>
<source><![CDATA[Adv Exp Med Biol]]></source>
<year>2017</year>
<volume>971</volume>
<page-range>93-100</page-range></nlm-citation>
</ref>
<ref id="B13">
<label>13</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Janz]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Lochel]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Trampuz]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Schaser]]></surname>
<given-names><![CDATA[KD]]></given-names>
</name>
<name>
<surname><![CDATA[Hofer]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Wassilew]]></surname>
<given-names><![CDATA[GI]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Risk factors and management strategies for early and late infections following reconstruction with special tumour endoprostheses]]></article-title>
<source><![CDATA[Orthopade]]></source>
<year>2020</year>
<volume>49</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>142-8</page-range></nlm-citation>
</ref>
<ref id="B14">
<label>14</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Allison]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Huang]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Ahlmann]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Carney]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Wang PA-C]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Menendez]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Peri-prosthetic infection in the orthopedic tumor patient]]></article-title>
<source><![CDATA[Reconstr Rev]]></source>
<year>2014</year>
<volume>4</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>13-7</page-range></nlm-citation>
</ref>
<ref id="B15">
<label>15</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Parvizi]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Tan]]></surname>
<given-names><![CDATA[TL]]></given-names>
</name>
<name>
<surname><![CDATA[Goswami]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Higuera]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Della Valle]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[AF]]></given-names>
</name>
<name>
<surname><![CDATA[Shohat]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The 2018 definition of periprosthetic hip and knee infection: an evidence-based and validated criteria]]></article-title>
<source><![CDATA[J Arthroplasty]]></source>
<year>2018</year>
<volume>33</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>1309-14.e2</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
