<?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>S2306-41022017000300108</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Valor diagnóstico de un modelo de predicción clínico-radiográfico para rupturas completas del manguito de los rotadores por pinzamiento subacromial]]></article-title>
<article-title xml:lang="en"><![CDATA[Diagnostic value of a predictive model for complete ruptures of the rotator cuff associated to subacromial impingement]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Águila-Ledesma]]></surname>
<given-names><![CDATA[IR]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Córdova-Fonseca]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Medina-Pontaza]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Núñez-Gómez]]></surname>
<given-names><![CDATA[DA]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Calvache-García]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez-Atanasio]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Torres-González]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,IMSS Hospital de Ortopedia, UMAE «Dr. Victorio de la Fuente Narváez» ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,IMSS Hospital de Ortopedia, UMAE «Dr. Victorio de la Fuente Narváez» Servicio de Artroscopía]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,IMSS División de Investigación en Salud Hospital de Ortopedia, UMAE «Dr. Victorio de la Fuente Narváez»]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2017</year>
</pub-date>
<volume>31</volume>
<numero>3</numero>
<fpage>108</fpage>
<lpage>112</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2306-41022017000300108&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2306-41022017000300108&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2306-41022017000300108&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: La patología relacionada al manguito de los rotadores permanece entre las enfermedades musculoesqueléticas más prevalentes. Hay una creciente necesidad de estudios de imagen (RMN, US, artroscopía) para probar el rendimiento diagnóstico de la historia clínica y el examen físico.  Objetivo:  Demostrar el valor diagnóstico de un modelo predictor clínico-radiográfico para rupturas completas del manguito de los rotadores.  Material y métodos:  Estudio descriptivo, observacional, prospectivo, transversal, analítico. Se evaluaron 55 pacientes con dolor de hombro en forma preoperatoria con 13 variables de predicción: edad &gt; 50 años, dolor nocturno, debilidad muscular, signos clínicos de Neer, Hawkins, Jobe, caída de la rotación externa, Napoleón, abrazo del oso, Gerber; medición radiológica del espacio subacromial, índice acromial y ángulo crítico del hombro. En cada variable se midió sensibilidad-especificidad, valor predictivo positivo y negativo. Se compararon los resultados de cada variable para diagnosticar rupturas del manguito de los rotadores contra los hallazgos postoperatorios.  Resultados:  De los 55 pacientes evaluados, 42 presentaron ruptura completa del mango rotador en el postoperatorio. Se seleccionaron las ocho variables con mayor valor diagnóstico y se realizó una curva ROC, proporcionando un área bajo la curva de 0.88.  Conclusiones:  Este modelo de predicción emplea ocho variables (edad &gt; 50 años, dolor nocturno, debilidad muscular, caída de la rotación externa, Jobe, Hawkins, espacio subacromial &#8804; 6 mm y ángulo crítico del hombro &gt; 35o) que en conjunto suman el valor predictivo de 0.88 (AUC) para diagnosticar rupturas completas del tendón supraespinoso.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: Pathology related to the rotator cuff remains among the most prevalent musculoskeletal diseases. There is an increasing need for imaging studies (MRI, US, arthroscopy) to test the diagnostic performance of the medical history and physical examination.  Objective:  To prove the diagnostic value of a clinical-radiographic predictive model to find complete ruptures of the rotator cuff.  Material and methods:  Descriptive, observational, prospective, transversal and analytical study. Fifty-five patients with preoperative shoulder pain were evaluated with 13 predictive variables: age &gt; 50 years, nocturnal pain, muscle weakness, clinical signs of Neer, Hawkins, Jobe, external rotation lag (ERLS), belly-press, bear hug, and lift-off, radiographic measurement of subacromial space, acromial index and critical shoulder angle. Sensitivity, specificity, and positive and negative predictive values were measured in each variable, comparing the results of each one against the postoperative findings.  Results:  Of the 55 patients evaluated, 42 had a complete rupture of the rotator cuff in the postoperative period. The eight variables with a higher diagnostic value were selected and a ROC curve was performed, providing an area under the curve of 0.88.  Conclusions:  This predictive model uses eight variables (age &gt; 50 years, nocturnal pain, muscle weakness, Jobe, Hawkins, ERLS, subacromial space &#8804; 6 mm, and critical shoulder angle &#707; 35o), which together add the predictive value of 0.88 (AUC) to diagnose complete ruptures of the supraspinatus tendon.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Valor diagnóstico]]></kwd>
<kwd lng="es"><![CDATA[modelo predictivo]]></kwd>
<kwd lng="es"><![CDATA[dolor de hombro]]></kwd>
<kwd lng="es"><![CDATA[manguito de los rotadores]]></kwd>
<kwd lng="es"><![CDATA[ruptura completa]]></kwd>
<kwd lng="en"><![CDATA[Diagnostic value]]></kwd>
<kwd lng="en"><![CDATA[prediction model]]></kwd>
<kwd lng="en"><![CDATA[shoulder pain]]></kwd>
<kwd lng="en"><![CDATA[rotator cuff]]></kwd>
<kwd lng="en"><![CDATA[complete tear]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[The diagnostic value of the combination of patient characteristics, history, and clinical shoulder tests for the diagnosis of rotator cuff tear]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Van Kampen]]></surname>
<given-names><![CDATA[DA]]></given-names>
</name>
<name>
<surname><![CDATA[van den Berg]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[van der Woude]]></surname>
<given-names><![CDATA[HJ]]></given-names>
</name>
<name>
<surname><![CDATA[Castelein]]></surname>
<given-names><![CDATA[RM]]></given-names>
</name>
<name>
<surname><![CDATA[Scholtes]]></surname>
<given-names><![CDATA[VA]]></given-names>
</name>
<name>
<surname><![CDATA[Terwee]]></surname>
<given-names><![CDATA[CB]]></given-names>
</name>
</person-group>
<source><![CDATA[J Orthop Surg Res]]></source>
<year>2014</year>
<volume>9</volume>
<page-range>70</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[The societal and economic value of rotator cuff repair]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mather]]></surname>
<given-names><![CDATA[RC]]></given-names>
</name>
<name>
<surname><![CDATA[Koenig]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Acevedo]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Dall]]></surname>
<given-names><![CDATA[TM]]></given-names>
</name>
<name>
<surname><![CDATA[Gallo]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Romeo]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<source><![CDATA[J Bone Joint Surg Am]]></source>
<year>2013</year>
<volume>95</volume>
<numero>22</numero>
<issue>22</issue>
<page-range>1993-2000</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[The demographic and morphological features of rotator cuff disease A comparison of asymptomatic and symptomatic shoulders]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yamaguchi]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Ditsios]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Middleton]]></surname>
<given-names><![CDATA[WD]]></given-names>
</name>
<name>
<surname><![CDATA[Hildebolt]]></surname>
<given-names><![CDATA[CF]]></given-names>
</name>
<name>
<surname><![CDATA[Galatz]]></surname>
<given-names><![CDATA[LM]]></given-names>
</name>
<name>
<surname><![CDATA[Teefey]]></surname>
<given-names><![CDATA[SA]]></given-names>
</name>
</person-group>
<source><![CDATA[J Bone Joint Surg Am]]></source>
<year>2006</year>
<volume>88</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>1699-704</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Prevalence and risk factors of a rotator cuff tear in the general population]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yamamoto]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Takagishi]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Osawa]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Yanagawa]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Nakajima]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Shitara]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<source><![CDATA[J Shoulder Elbow Surg]]></source>
<year>2010</year>
<volume>19</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>116-20</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Impingement lesions]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Neer]]></surname>
<given-names><![CDATA[CS]]></given-names>
</name>
</person-group>
<source><![CDATA[Clin Orthop Relat Res]]></source>
<year>1983</year>
<volume>70-7</volume>
<numero>173</numero>
<issue>173</issue>
</nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Repetition strain injury a review of current understanding]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[McDermott]]></surname>
<given-names><![CDATA[FT]]></given-names>
</name>
</person-group>
<source><![CDATA[Med J Aust]]></source>
<year>1986</year>
<volume>144</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>196-200</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Degeneration at the insertion weakens the tensile strength of the supraspinatus tendon a comparative mechanical and histologic study of the bone-tendon complex]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sano]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Ishii]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Yeadon]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Backman]]></surname>
<given-names><![CDATA[DS]]></given-names>
</name>
<name>
<surname><![CDATA[Brunet]]></surname>
<given-names><![CDATA[JA]]></given-names>
</name>
<name>
<surname><![CDATA[Uhthoff]]></surname>
<given-names><![CDATA[HK]]></given-names>
</name>
</person-group>
<source><![CDATA[J Orthop Res]]></source>
<year>1997</year>
<volume>15</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>719-26</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Diagnostic accuracy of clinical tests for the different degrees of subacromial impingement syndrome]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Park]]></surname>
<given-names><![CDATA[HB]]></given-names>
</name>
<name>
<surname><![CDATA[Yokota]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Gill]]></surname>
<given-names><![CDATA[HS]]></given-names>
</name>
<name>
<surname><![CDATA[El Rassi]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[McFarland]]></surname>
<given-names><![CDATA[EG]]></given-names>
</name>
</person-group>
<source><![CDATA[J Bone Joint Surg Am]]></source>
<year>2005</year>
<volume>87</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>1446-55</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Age, trauma and the critical shoulder angle accurately predict supraspinatus tendon tears]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Moor]]></surname>
<given-names><![CDATA[BK]]></given-names>
</name>
<name>
<surname><![CDATA[Röthlisberger]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Müller]]></surname>
<given-names><![CDATA[DA]]></given-names>
</name>
<name>
<surname><![CDATA[Zumstein]]></surname>
<given-names><![CDATA[MA]]></given-names>
</name>
<name>
<surname><![CDATA[Bouaicha]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Ehlinger]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<source><![CDATA[Orthop Traumatol Surg Res]]></source>
<year>2014</year>
<volume>100</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>489-94</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Symptoms of pain do not correlate with rotator cuff tear severity a cross-sectional study of 393 patients with a symptomatic atraumatic full-thickness rotator cuff tear]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dunn]]></surname>
<given-names><![CDATA[WR]]></given-names>
</name>
<name>
<surname><![CDATA[Kuhn]]></surname>
<given-names><![CDATA[JE]]></given-names>
</name>
<name>
<surname><![CDATA[Sanders]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[An]]></surname>
<given-names><![CDATA[Q]]></given-names>
</name>
<name>
<surname><![CDATA[Baumgarten]]></surname>
<given-names><![CDATA[KM]]></given-names>
</name>
<name>
<surname><![CDATA[Bishop]]></surname>
<given-names><![CDATA[JY]]></given-names>
</name>
</person-group>
<source><![CDATA[J Bone Joint Surg Am]]></source>
<year>2014</year>
<volume>96</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>793-800</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<collab>MOON Shoulder Group</collab>
<article-title xml:lang=""><![CDATA[The duration of symptoms does not correlate with rotator cuff tear severity or other patient-related features: a cross-sectional study of patients with atraumatic, full-thickness rotator cuff tears]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Unruh]]></surname>
<given-names><![CDATA[KP]]></given-names>
</name>
<name>
<surname><![CDATA[Kuhn]]></surname>
<given-names><![CDATA[JE]]></given-names>
</name>
<name>
<surname><![CDATA[Sanders]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[An]]></surname>
<given-names><![CDATA[Q]]></given-names>
</name>
<name>
<surname><![CDATA[Baumgarten]]></surname>
<given-names><![CDATA[KM]]></given-names>
</name>
</person-group>
<source><![CDATA[J Shoulder Elbow Surg]]></source>
<year>2014</year>
<volume>23</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>1052-8</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Which physical examination tests provide clinicians with the most value when examining the shoulder Update of a systematic review with meta-analysis of individual tests]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hegedus]]></surname>
<given-names><![CDATA[EJ]]></given-names>
</name>
<name>
<surname><![CDATA[Goode]]></surname>
<given-names><![CDATA[AP]]></given-names>
</name>
<name>
<surname><![CDATA[Cook]]></surname>
<given-names><![CDATA[CE]]></given-names>
</name>
<name>
<surname><![CDATA[Michener]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Myer]]></surname>
<given-names><![CDATA[CA]]></given-names>
</name>
<name>
<surname><![CDATA[Myer]]></surname>
<given-names><![CDATA[DM]]></given-names>
</name>
</person-group>
<source><![CDATA[Br J Sports Med]]></source>
<year>2012</year>
<volume>46</volume>
<numero>14</numero>
<issue>14</issue>
<page-range>964-78</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Rotator cuff tear physical examination and conservative treatment]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Itoi]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<source><![CDATA[J Orthop Sci]]></source>
<year>2013</year>
<volume>18</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>197-204</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[External rotation lag sign revisited accuracy for diagnosis of full thickness supraspinatus tear]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Castoldi]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Blonna]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Hertel]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<source><![CDATA[J Shoulder Elbow Surg]]></source>
<year>2009</year>
<volume>18</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>529-34</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[The critical shoulder angle is associated with rotator cuff tears and shoulder osteoarthritis and is better assessed with radiographs over MRI]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Spiegl]]></surname>
<given-names><![CDATA[UJ]]></given-names>
</name>
<name>
<surname><![CDATA[Horan]]></surname>
<given-names><![CDATA[MP]]></given-names>
</name>
<name>
<surname><![CDATA[Smith]]></surname>
<given-names><![CDATA[SW]]></given-names>
</name>
<name>
<surname><![CDATA[Ho]]></surname>
<given-names><![CDATA[CP]]></given-names>
</name>
<name>
<surname><![CDATA[Millett]]></surname>
<given-names><![CDATA[PJ]]></given-names>
</name>
</person-group>
<source><![CDATA[Knee Surg Sports Traumatol Arthrosc]]></source>
<year>2016</year>
<volume>24</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>2244-51</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Is there an association between the individual anatomy of the scapula and the development of rotator cuff tears or osteoarthritis of the glenohumeral joint?: A radiological study of the critical shoulder angle]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Moor]]></surname>
<given-names><![CDATA[BK]]></given-names>
</name>
<name>
<surname><![CDATA[Bouaicha]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Rothenfluh]]></surname>
<given-names><![CDATA[DA]]></given-names>
</name>
<name>
<surname><![CDATA[Sukthankar]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Gerber]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<source><![CDATA[Bone Joint J]]></source>
<year>2013</year>
<volume>95</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>935-41</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[A study to develop clinical decision rules for the use of radiography in acute ankle injuries]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Stiell]]></surname>
<given-names><![CDATA[IG]]></given-names>
</name>
<name>
<surname><![CDATA[Greenberg]]></surname>
<given-names><![CDATA[GH]]></given-names>
</name>
<name>
<surname><![CDATA[McKnight]]></surname>
<given-names><![CDATA[RD]]></given-names>
</name>
<name>
<surname><![CDATA[Nair]]></surname>
<given-names><![CDATA[RC]]></given-names>
</name>
<name>
<surname><![CDATA[McDowell]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
<name>
<surname><![CDATA[Worthington]]></surname>
<given-names><![CDATA[JR]]></given-names>
</name>
</person-group>
<source><![CDATA[Ann Emerg Med]]></source>
<year>1992</year>
<volume>21</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>384-90</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hulley]]></surname>
<given-names><![CDATA[SB]]></given-names>
</name>
</person-group>
<source><![CDATA[Designing clinical research an epidemiologic approach]]></source>
<year>2001</year>
<edition>2</edition>
<page-range>91</page-range><publisher-loc><![CDATA[Philadelphia ]]></publisher-loc>
<publisher-name><![CDATA[Lippincott Williams and Wilkins]]></publisher-name>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
