<?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>S2306-41022023000500309</article-id>
<article-id pub-id-type="doi">10.35366/113966</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Osteosarcoma parostal de fémur y cirugía de salvamento con prótesis intercalar. Experiencia en una unidad de tercer nivel y técnica quirúrgica]]></article-title>
<article-title xml:lang="en"><![CDATA[Parosteal osteosarcoma of the femur and salvage surgery with intercalary prosthesis. Experience in a third level unit and surgical technique]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vilchis-Ramírez]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Álvarez-Martínez]]></surname>
<given-names><![CDATA[FA]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tena-Sanabria]]></surname>
<given-names><![CDATA[ME]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fuentes-Herrera]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital General Xoco  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Mexicano del Seguro Social Centro Médico Nacional Siglo XXI Unidad Médica de Alta Especialidad]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>10</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>10</month>
<year>2023</year>
</pub-date>
<volume>37</volume>
<numero>5</numero>
<fpage>309</fpage>
<lpage>313</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2306-41022023000500309&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2306-41022023000500309&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2306-41022023000500309&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Introducción:  el osteosarcoma parostal es un tumor óseo maligno extramedular en el cual las células tumorales producen osteoide. Representa menos de 5% de los osteosarcomas. Se presenta predominantemente en la mujer, entre la segunda y cuarta década de la vida. Su localización más frecuente es la región distal del fémur y proximal de la tibia. Clínicamente, se manifiesta con aumento de volumen y dolor en muslo o rodilla. Debido a su baja incidencia y características clínicas, se presenta un caso clínico de osteosarcoma parostal femoral con descripción de la técnica quirúrgica realizada.  Caso clínico:  femenino de 14 años edad con cuadro clínico caracterizado por aumento de volumen y dolor en muslo derecho de seis meses de evolución. Se realizaron radiografías de fémur derecho, encontrando lesión ósea con características compatibles de malignidad, por lo que es enviada a unidad de tercer nivel para iniciar protocolo oncológico; se realizan dos biopsias percutáneas con aguja de Jamshidi, ambas con reporte histológico negativo para células malignas. En tomografía pulmonar de alta resolución se observó presencia de metástasis y la gammagrafía ósea con Tc99 reportó actividad osteoblástica en fémur derecho. Se decide tratamiento con resección en bloque y colocación de prótesis intercalar más quimioterapia adyuvante.  Conclusión:  la prótesis intercalar resulta una opción terapéutica adecuada en la cirugía de salvamento de extremidad para pacientes con diagnóstico de osteosarcoma parostal femoral.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Introduction:  parosteal osteosarcoma is an extramedullary malignant bone tumor in which cells produce osteoid, represents less than 5% of all osteosarcomas, it occurs predominantly in women between the second and fourth decade of life. It is often located in the distal region of the femur and proximal tibia. Clinically it presents with increased volume and thigh or knee pain. Due to its low incidence and clinical features, a clinical case of femoral parosteal osteosarcoma is presented, with description of the surgical technique performed.  Case report:  a 14-year-old female presented with a 6-month history of increased volume and right thigh pain. Radiological studies revealed a bone lesion with malignant characteristics, for which she was sent to third-level hospital where oncology study protocol was set up; consisting in two percutaneous biopsies of the lesion with Jamshidi needle, which were histopathology reported as negative for malignant cells. The pulmonary high-resolution computed tomography showed metastasis and a Tc-99m MDP bone scintigraphy showed increased osteoblastic activity in the right femoral shaft. Given the results, is confirmed the need of en-bloc resection and intercalary prosthesis implantation with adjuvant chemotherapy.  Conclusion:  the intercalary prosthesis is a suitable therapeutic option in limb-salvage surgery for patients with femoral parosteal osteosarcoma.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[osteosarcoma]]></kwd>
<kwd lng="es"><![CDATA[tumor]]></kwd>
<kwd lng="es"><![CDATA[fémur]]></kwd>
<kwd lng="es"><![CDATA[cirugía]]></kwd>
<kwd lng="es"><![CDATA[tratamiento]]></kwd>
<kwd lng="es"><![CDATA[prótesis]]></kwd>
<kwd lng="en"><![CDATA[osteosarcoma]]></kwd>
<kwd lng="en"><![CDATA[tumor]]></kwd>
<kwd lng="en"><![CDATA[femur]]></kwd>
<kwd lng="en"><![CDATA[surgery]]></kwd>
<kwd lng="en"><![CDATA[treatment]]></kwd>
<kwd lng="en"><![CDATA[prosthesis]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kumar]]></surname>
<given-names><![CDATA[VS]]></given-names>
</name>
<name>
<surname><![CDATA[Barwar]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Khan]]></surname>
<given-names><![CDATA[SA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Surface osteosarcomas: diagnosis, treatment and outcome]]></article-title>
<source><![CDATA[Indian J Orthop]]></source>
<year>2014</year>
<volume>48</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>255-61</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nouri]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Ben Maitigue]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Abid]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Nouri]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Abdelkader]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Bouaziz]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Surface osteosarcoma: clinical features and therapeutic implications]]></article-title>
<source><![CDATA[J Bone Oncol]]></source>
<year>2015</year>
<volume>4</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>115-23</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sánchez-Torres]]></surname>
<given-names><![CDATA[LJ]]></given-names>
</name>
<name>
<surname><![CDATA[Santos-Hernández]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Osteosarcoma]]></article-title>
<source><![CDATA[Rev Mex Ortop Ped]]></source>
<year>2011</year>
<volume>13</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>10-9</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lin]]></surname>
<given-names><![CDATA[HY]]></given-names>
</name>
<name>
<surname><![CDATA[Hondar Wu]]></surname>
<given-names><![CDATA[HT]]></given-names>
</name>
<name>
<surname><![CDATA[Wu]]></surname>
<given-names><![CDATA[PK]]></given-names>
</name>
<name>
<surname><![CDATA[Wu]]></surname>
<given-names><![CDATA[CL]]></given-names>
</name>
<name>
<surname><![CDATA[Chih-Hsueh Chen]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[WM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Can imaging distinguish between low-grade and dedifferentiated parosteal osteosarcoma?]]></article-title>
<source><![CDATA[J Chin Med Assoc]]></source>
<year>2018</year>
<volume>81</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>912-9</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[Laitinen]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Parry]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Albergo]]></surname>
<given-names><![CDATA[JI]]></given-names>
</name>
<name>
<surname><![CDATA[Jeys]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Abudu]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Carter]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The prognostic and therapeutic factors which influence the oncological outcome of parosteal osteosarcoma]]></article-title>
<source><![CDATA[Bone Joint J]]></source>
<year>2015</year>
<volume>97</volume>
<numero>12</numero>
<issue>12</issue>
<page-range>1698-703</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[Clara-Altamirano]]></surname>
<given-names><![CDATA[MA]]></given-names>
</name>
<name>
<surname><![CDATA[García-Ortega]]></surname>
<given-names><![CDATA[DY]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez-Tlahuel]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez-Said]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Caro-Sánchez]]></surname>
<given-names><![CDATA[CHS]]></given-names>
</name>
<name>
<surname><![CDATA[García-Ruíz]]></surname>
<given-names><![CDATA[GC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Osteosarcoma con presentación atípica en tercio medio de diáfisis de fémur. Reporte de un caso clínico y revisión de la literatura]]></article-title>
<source><![CDATA[Acta Ortop Mex]]></source>
<year>2016</year>
<volume>30</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>28-32</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[Yoshida]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Osteosarcoma: Old and new challenges]]></article-title>
<source><![CDATA[Surg Pathol Clin]]></source>
<year>2021</year>
<volume>14</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>567-83</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[Mei]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Zhu]]></surname>
<given-names><![CDATA[XZ]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[ZY]]></given-names>
</name>
<name>
<surname><![CDATA[Cai]]></surname>
<given-names><![CDATA[XS]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Functional outcomes and quality of life in patients with osteosarcoma treated with amputation versus limb-salvage surgery: a systematic review and meta-analysis]]></article-title>
<source><![CDATA[Arch Orthop Trauma Surg]]></source>
<year>2014</year>
<volume>134</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>1507-16</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[Ahlmann]]></surname>
<given-names><![CDATA[ER]]></given-names>
</name>
<name>
<surname><![CDATA[Menendez]]></surname>
<given-names><![CDATA[LR]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Intercalary endoprosthetic reconstruction for diaphyseal bone tumours]]></article-title>
<source><![CDATA[J Bone Joint Surg Br]]></source>
<year>2006</year>
<volume>88</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>1487-91</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[Chen]]></surname>
<given-names><![CDATA[TH]]></given-names>
</name>
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[WM]]></given-names>
</name>
<name>
<surname><![CDATA[Huang]]></surname>
<given-names><![CDATA[CK]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Reconstruction after intercalary resection of malignant bone tumours: comparison between segmental allograft and extracorporeally-irradiated autograft]]></article-title>
<source><![CDATA[J Bone Joint Surg Br]]></source>
<year>2005</year>
<volume>87</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>704-9</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[Delgadillo-Alcaráz]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Cuevas-De Alba]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Flores-Navarro]]></surname>
<given-names><![CDATA[HH]]></given-names>
</name>
<name>
<surname><![CDATA[Arana-Hernández]]></surname>
<given-names><![CDATA[EI]]></given-names>
</name>
<name>
<surname><![CDATA[Gutiérrez-Ureña]]></surname>
<given-names><![CDATA[JA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Preservación de extremidad con aloinjerto óseo en un paciente pediátrico con osteosarcoma]]></article-title>
<source><![CDATA[Rev Med MD]]></source>
<year>2018</year>
<volume>9</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>275-8</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
