<?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>S2306-41022018000500274</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Medición radiográfica del ángulo acetabular para el diagnóstico temprano de la displasia del desarrollo de la cadera]]></article-title>
<article-title xml:lang="en"><![CDATA[Radiographic measurement of the acetabular angle for early diagnosis of hip development dysplasia]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Osorio-García]]></surname>
<given-names><![CDATA[JJ]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mendieta-Alcántara]]></surname>
<given-names><![CDATA[GG]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto de Salud del Estado de México Hospital Materno Perinatal «Mónica Pretelini Sáenz» Servicio de Cirugía Ortopédica]]></institution>
<addr-line><![CDATA[Toluca ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto de Salud del Estado de México Hospital Materno Perinatal «Mónica Pretelini Sáenz» Servicio de Cardiología Pediátrica]]></institution>
<addr-line><![CDATA[Toluca ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>10</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>10</month>
<year>2018</year>
</pub-date>
<volume>32</volume>
<numero>5</numero>
<fpage>274</fpage>
<lpage>278</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2306-41022018000500274&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2306-41022018000500274&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2306-41022018000500274&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Antecedentes:  Para evitar secuelas en la displasia del desarrollo de la cadera el tratamiento debe ser temprano; el ángulo acetabular corresponde a la inclinación del techo del acetábulo. Stanisavljevic indica que para medir adecuadamente el ángulo acetabular se deben colocar las caderas en abducción. Pregunta: ¿cuál es la magnitud de la diferencia de la medición radiográfica del ángulo acetabular entre las proyecciones anteroposterior de pelvis en posición neutra y con abducción de caderas?  Métodos:  Se tomaron 916 mediciones radiográficas comparando las de posición neutra contra las de abducción de caderas, de pacientes atendidos en consulta externa entre el 1 de Abril de 2010 y el 31 de Marzo de 2013.  Resultados:  Se realizaron pruebas t para medias de dos muestras emparejadas y se obtuvo una diferencia hipotética de las medias de 0.0000 y el coeficiente de correlación de Pearson para cadera derecha fue 0.74427531 y para la izquierda 0.73779866. Usando una Tabla propuesta de normalidad del ángulo acetabular según edad, se obtuvo el área bajo la curva en una distribución tgl457 = 0.650 con p = 0.516. El índice acetabular en posición neutra y con abducción de caderas es similar con alta significancia estadística, según el análisis de correlación de Pearson. Con base en la curva ROC, el índice acetabular en posición de rana tiene una alta sensibilidad y especificidad. Por tanto, la medición del índice acetabular en posición con abducción de caderas, tiene alta confiabilidad de lograr un diagnóstico correcto.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Background:  In order to avoid sequelae in the development dysplasia of the hip the treatment should be early; The acetabular angle corresponds to the inclination of the roof of the acetabulum. Stanisvljevic indicates that to properly measure the acetabular angle, the hips should be placed in abduction. Question: What is the magnitude of the difference in radiographic measurement of the acetabular angle between the anteroposterior projections of pelvis in neutral position and with abduction of hips?  Methods:  916 radiographic measurements were taken by contrasting the neutral position against those of hip abduction, of patients in our clinic attended between April 1, 2010 and March 31, 2013.  Results:  T tests were performed for means of two matched samples and a hypothetical difference of the mean of 0.0000 was obtained and the Pearson correlation coefficient for right hip was 0.74427531 and for the left 0.73779866. Using a proposed Table of normality of the Acetabular angle according to age, the area was obtained under the curve in a distribution Tgl457 = 0.650 with P = 0.516. The index acetabular in neutral position and with abduction of hips is similar with high statistical significance, according to the analysis of correlation of Pearson. Based on the ROC curve, the acetabular index in frog position has a high sensitivity and specificity.  Discussion:  Therefore, the measurement of the acetabular index in position with hip abduction, has high reliability to achieve a correct diagnosis.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Displasia]]></kwd>
<kwd lng="es"><![CDATA[cadera]]></kwd>
<kwd lng="es"><![CDATA[ángulo acetabular]]></kwd>
<kwd lng="es"><![CDATA[radiografía]]></kwd>
<kwd lng="es"><![CDATA[diagnóstico]]></kwd>
<kwd lng="en"><![CDATA[Dysplasia]]></kwd>
<kwd lng="en"><![CDATA[hip]]></kwd>
<kwd lng="en"><![CDATA[acetabular angle]]></kwd>
<kwd lng="en"><![CDATA[x-ray]]></kwd>
<kwd lng="en"><![CDATA[diagnosis]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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