<?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>1134-8046</journal-id>
<journal-title><![CDATA[Revista de la Sociedad Española del Dolor]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Soc. Esp. Dolor]]></abbrev-journal-title>
<issn>1134-8046</issn>
<publisher>
<publisher-name><![CDATA[Inspira Network Group, S.L ]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1134-80462014000300002</article-id>
<article-id pub-id-type="doi">10.4321/S1134-80462014000300002</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Escala de diagnóstico (SI5) de disfunción de la articulación sacroiliaca: estudio piloto]]></article-title>
<article-title xml:lang="en"><![CDATA[Scale of diagnostics (SI5) for the sacroiliac joint dysfunction: pilot study]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Acevedo González]]></surname>
<given-names><![CDATA[J. C.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Quintero]]></surname>
<given-names><![CDATA[S. T.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
<xref ref-type="aff" rid="A02"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Hospital Universitario San Ignacio Unidad de Neurocirugía ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="A02">
<institution><![CDATA[,Pontificia Universidad Javeriana Facultad de Medicina ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2014</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2014</year>
</pub-date>
<volume>21</volume>
<numero>3</numero>
<fpage>123</fpage>
<lpage>130</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_arttext&amp;pid=S1134-80462014000300002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_abstract&amp;pid=S1134-80462014000300002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_pdf&amp;pid=S1134-80462014000300002&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Objetivo: El dolor lumbar es uno de los síntomas más frecuentes en la población general. La disfunción biomecánica de la articulación sacroiliaca (ASI) es una de las etiologías que debe considerarse en el estudio de esta patología. En este contexto consideramos que el análisis clínico de la ASI debe permitir desarrollar una escala para confirmar el diagnóstico de su disfunción, sin que sea necesaria la realización de procedimientos invasivos. El presente trabajo es un estudio piloto de la aplicación de la escala diagnóstica para la disfunción de la ASI (SI5). Métodos: Se desarrolló una búsqueda bibliográfica de los signos clínicos y paraclínicos comúnmente utilizados para sospechar disfunción de la ASI. Una vez se discutieron y se definieron los aspectos más importantes, se desarrolló la escala de diagnóstico de la disfunción de la ASI (SI5). Se aplicó la escala SI5 a 68 pacientes que ingresaron con dolor lumbar crónico mediante un cuestionario estandarizado. Se establecieron cuatro grupos de pacientes: grupo 1 - pacientes con enfermedad facetaria lumbar; grupo 2 - pacientes con dolor neuropático de origen radicular; grupo 3 - pacientes con diagnóstico de disfunción de la ASI; y grupo 4 - pacientes con otras causas de dolor lumbar (en este grupo se incluyeron aquellos con dolor lumbar discogénico y dolor osteomuscular). Resultados: Al aplicar la Escala de Disfunción de la ASI (SI5) en los cuatro grupos descritos encontramos que todos los pacientes con diagnóstico de disfunción de la ASI (grupo 3) tienen cuatro puntos o más en la escala. Por el contrario en los demás grupos la mayoría de los pacientes tuvieron menos de cuatro puntos en la escala SI5. Los cinco aspectos evaluados fueron más frecuentemente positivos en los pacientes con diagnóstico de disfunción de la ASI comparados con los demás grupos. Discusión y conclusiones: La disfunción de la articulación sacroiliaca es una patología importante como causa de dolor lumbar, sin embargo su diagnóstico clínico es muy difícil, por lo cual se hace necesario definir una combinación de test clínicos y de estudios paraclínicos para lograr diagnósticos más precisos. Sin embargo consideramos que se requiere un proceso estadístico completo de validación de la Escala SI5. Nuestros resultados son un estudio piloto inicial que nos va a permitir estructurar y redefinir una Escala de Disfunción de la ASI para concluir con mayor certeza.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Objective: Low back pain is one of the most frequent symptoms in the general population. The sacroiliac joint dysfunction is a known cause of low back pain. Some studies have found that the clinical characteristic and physical examination findings are consistently capable of identifying dysfunctional sacroiliac joint as pain generators. However many factors can impact on the sensitivity and specificity of diagnostic. In this context, we think that a test score (SI5) may be performed to assess diagnostic utility of clinical signs and radionuclide bone scanning of sacroiliac joint dysfunction. The primary aim of the present study was to conduct conducting the pilot study of our new test score SI5. Methods: After reviewing the literature about of clinical characteristic, diagnostic test and imaging of the sacroiliac joint; we evaluated diagnostic utility of these aspects and developed the SI5 test score. The SI5 test score was performed in 68 patients with low back pain including completion of a standard questionnaire, history, physical examination performed by a physician, and evaluation of the results. Patients included in this study were assigned to one of four groups: A group of pain from facet joints, the second group with radicular pain, others patients were designed in the sacroiliac pain group and last group with other causes of low back pain. Results: All patients with diagnostic of sacroiliac joint dysfunction had a SI5 test score SI5 of 4 to 5; instead the patients in the other groups had less than 4 point in the test score. The frequency of all criteria of the SI5 test score was higher in the patients of sacroiliac pain group than in the other groups. Discussion and conclusions: Sacroiliac joints have been shown to be capable of producing pain in the low back; however, the diagnostic value of examination tests for sacroiliac joint pain has been questioned previously by other authors. More research is needed to guide clinicians on the choice of examination procedures and interventions for patients with pain which may be arising from the sacroiliac joint. The pilot study of SI5 test score provides an opportunity to gather both quantitative and qualitative data about the test. This study required statistical procedures that yield appropriate results.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Articulación sacroiliaca]]></kwd>
<kwd lng="es"><![CDATA[Dolor lumbar]]></kwd>
<kwd lng="es"><![CDATA[Estudio piloto]]></kwd>
<kwd lng="en"><![CDATA[Sacroiliac joint]]></kwd>
<kwd lng="en"><![CDATA[Low back pain]]></kwd>
<kwd lng="en"><![CDATA[Pilot study]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p><a name="top"></a><font face="Verdana" size="2"><b>ORIGINAL</b></font></p>     <p>&nbsp;</p>     <p><font face="Verdana" size="4"><b>Escala de diagn&oacute;stico (SI5) de disfunci&oacute;n de la articulaci&oacute;n sacroiliaca: estudio piloto</b></font></p>     <p><font face="Verdana" size="4"><b>Scale of diagnostics (SI5) for the sacroiliac joint dysfunction: Pilot study</b></font></p>     <p>&nbsp;</p>     <p>&nbsp;</p>     <p><font face="Verdana" size="2"><b>J. C. Acevedo Gonz&aacute;lez<sup>1</sup> y S. T. Quintero<sup>2</sup></b></font></p>     <p><font face="Verdana" size="2"><sup>1</sup>Unidad de Neurocirug&iacute;a. Hospital Universitario San Ignacio. Facultad de Medicina Pontificia Universidad Javeriana. Bogot&aacute;, Colombia.    <br><sup>2</sup>Unidad de Neurocirug&iacute;a. Facultad de Medicina Pontificia Universidad Javeriana. Hospital Universitario San Ignacio. Bogot&aacute;, Colombia</font></p>     <p><font face="Verdana" size="2">Financiaci&oacute;n: Hospital Universitario San Ignacio. Pontificia Universidad Javeriana. Bogot&aacute;, Colombia.</font></p>     ]]></body>
<body><![CDATA[<p><font face="Verdana" size="2"><a href="#bajo">Dirección para correspondencia</a></font></p>     <p>&nbsp;</p>     <p>&nbsp;</p> <hr size="1">    <p><font face="Verdana" size="2"><b>RESUMEN</b></font></p>     <p><font face="Verdana" size="2"><b>Objetivo:</b> El dolor lumbar es uno de los s&iacute;ntomas m&aacute;s frecuentes en la poblaci&oacute;n general. La disfunci&oacute;n biomec&aacute;nica de la articulaci&oacute;n sacroiliaca (ASI) es una de las etiolog&iacute;as que debe considerarse en el estudio de esta patolog&iacute;a. En este contexto consideramos que el an&aacute;lisis cl&iacute;nico de la ASI debe permitir desarrollar una escala para confirmar el diagn&oacute;stico de su disfunci&oacute;n, sin que sea necesaria la realizaci&oacute;n de procedimientos invasivos. El presente trabajo es un estudio piloto de la aplicaci&oacute;n de la escala diagn&oacute;stica para la disfunci&oacute;n de la ASI (SI5).    <br><b>M&eacute;todos:</b> Se desarroll&oacute; una b&uacute;squeda bibliogr&aacute;fica de los signos cl&iacute;nicos y paracl&iacute;nicos com&uacute;nmente utilizados para sospechar disfunci&oacute;n de la ASI. Una vez se discutieron y se definieron los aspectos m&aacute;s importantes, se desarroll&oacute; la escala de diagn&oacute;stico de la disfunci&oacute;n de la ASI (SI5). Se aplic&oacute; la escala SI5 a 68 pacientes que ingresaron con dolor lumbar cr&oacute;nico mediante un cuestionario estandarizado. Se establecieron cuatro grupos de pacientes: grupo 1 - pacientes con enfermedad facetaria lumbar; grupo 2 - pacientes con dolor neurop&aacute;tico de origen radicular; grupo 3 - pacientes con diagn&oacute;stico de disfunci&oacute;n de la ASI; y grupo 4 - pacientes con otras causas de dolor lumbar (en este grupo se incluyeron aquellos con dolor lumbar discog&eacute;nico y dolor osteomuscular).    <br><b>Resultados:</b> Al aplicar la Escala de Disfunci&oacute;n de la ASI (SI5) en los cuatro grupos descritos encontramos que todos los pacientes con diagn&oacute;stico de disfunci&oacute;n de la ASI (grupo 3) tienen cuatro puntos o m&aacute;s en la escala. Por el contrario en los dem&aacute;s grupos la mayor&iacute;a de los pacientes tuvieron menos de cuatro puntos en la escala SI5. Los cinco aspectos evaluados fueron m&aacute;s frecuentemente positivos en los pacientes con diagn&oacute;stico de disfunci&oacute;n de la ASI comparados con los dem&aacute;s grupos.    <br><b>Discusi&oacute;n y conclusiones:</b> La disfunci&oacute;n de la articulaci&oacute;n sacroiliaca es una patolog&iacute;a importante como causa de dolor lumbar, sin embargo su diagn&oacute;stico cl&iacute;nico es muy dif&iacute;cil, por lo cual se hace necesario definir una combinaci&oacute;n de test cl&iacute;nicos y de estudios paracl&iacute;nicos para lograr diagn&oacute;sticos m&aacute;s precisos. Sin embargo consideramos que se requiere un proceso estad&iacute;stico completo de validaci&oacute;n de la Escala SI5. Nuestros resultados son un estudio piloto inicial que nos va a permitir estructurar y redefinir una Escala de Disfunci&oacute;n de la ASI para concluir con mayor certeza.</font></p>     <p><font face="Verdana" size="2"><b>Palabras clave:</b> Articulaci&oacute;n sacroiliaca. Dolor lumbar. Estudio piloto.</font></p> <hr size="1">    <p><font face="Verdana" size="2"><b>ABSTRACT</b></font></p>     ]]></body>
<body><![CDATA[<p><font face="Verdana" size="2"><b>Objective:</b> Low back pain is one of the most frequent symptoms in the general population. The sacroiliac joint dysfunction is a known cause of low back pain. Some studies have found that the clinical characteristic and physical examination findings are consistently capable of identifying dysfunctional sacroiliac joint as pain generators. However many factors can impact on the sensitivity and specificity of diagnostic. In this context, we think that a test score (SI5) may be performed to assess diagnostic utility of clinical signs and radionuclide bone scanning of sacroiliac joint dysfunction. The primary aim of the present study was to conduct conducting the pilot study of our new test score SI5.    <br><b>Methods:</b> After reviewing the literature about of clinical characteristic, diagnostic test and imaging of the sacroiliac joint; we evaluated diagnostic utility of these aspects and developed the SI5 test score. The SI5 test score was performed in 68 patients with low back pain including completion of a standard questionnaire, history, physical examination performed by a physician, and evaluation of the results. Patients included in this study were assigned to one of four groups: A group of pain from facet joints, the second group with radicular pain, others patients were designed in the sacroiliac pain group and last group with other causes of low back pain.    <br><b>Results:</b> All patients with diagnostic of sacroiliac joint dysfunction had a SI5 test score SI5 of 4 to 5; instead the patients in the other groups had less than 4 point in the test score. The frequency of all criteria of the SI5 test score was higher in the patients of sacroiliac pain group than in the other groups.    <br><b>Discussion and conclusions:</b> Sacroiliac joints have been shown to be capable of producing pain in the low back; however, the diagnostic value of examination tests for sacroiliac joint pain has been questioned previously by other authors. More research is needed to guide clinicians on the choice of examination procedures and interventions for patients with pain which may be arising from the sacroiliac joint. The pilot study of SI5 test score provides an opportunity to gather both quantitative and qualitative data about the test. This study required statistical procedures that yield appropriate results.</font></p>     <p><font face="Verdana" size="2"><b>Key words:</b> Sacroiliac joint. Low back pain. Pilot study.</font></p> <hr size="1">     <p>&nbsp;</p>     <p><font face="Verdana" size="2"><b>Introducción</b></font></p>     <p><font face="Verdana" size="2">El dolor lumbar es uno de los s&iacute;ntomas m&aacute;s frecuentes en la poblaci&oacute;n general. Algunos autores refieren que hasta el 50 % de los adultos ha presentado un episodio de dolor lumbar en alg&uacute;n momento de su vida. Seg&uacute;n las Gu&iacute;as Europeas para el manejo del dolor lumbar cr&oacute;nico no espec&iacute;fico la prevalencia de vida de dolor lumbar es de 84 % (1). Este dolor puede ocasionar un impacto adverso sobre la calidad de vida de los pacientes y un alto ausentismo laboral, lo cual ocasiona una problem&aacute;tica socioecon&oacute;mica importante. Esto conlleva a que las sociedades modernas tengan la necesidad de realizar diagn&oacute;sticos precisos y tratamientos efectivos para este tipo de patolog&iacute;as (1,2).</font></p>     <p><font face="Verdana" size="2">La mayor dificultad para determinar la etiolog&iacute;a del dolor lumbar radica en que la columna vertebral y la pelvis funcionan como una estructura din&aacute;mica integrada. Cualquier modificaci&oacute;n de una estructura lumbosacrococc&iacute;gea repercute directamente en los discos y las articulaciones de los niveles vertebrales, por lo cual hay diversas estructuras anat&oacute;micas que podr&iacute;an estar implicadas en el origen de este tipo de dolor (3-5). Por todo lo anterior los m&eacute;dicos que tratamos este tipo de patolog&iacute;as reconocemos que los diagn&oacute;sticos diferenciales al considerar el dolor lumbar son numerosos y de dif&iacute;cil identificaci&oacute;n espec&iacute;fica.</font></p>     <p><font face="Verdana" size="2">La disfunci&oacute;n biomec&aacute;nica de la articulaci&oacute;n sacroiliaca (ASI) es una de las patolog&iacute;as que debe considerarse en el estudio de pacientes con dolor lumbar (3,6-29).</font></p>     ]]></body>
<body><![CDATA[<p><font face="Verdana" size="2">En varios estudios se ha reportado una prevalencia de la disfunci&oacute;n de la articulaci&oacute;n sacroiliaca en 10-30 % en paciente con dolor lumbar (12,30-34). Esto conduce al desarrollo de m&uacute;ltiples elementos cl&iacute;nicos y paracl&iacute;nicos para diagnosticar el dolor que se origina en la ASI, sin embargo actualmente no contamos con unos criterios claros y pr&aacute;cticos para aplicar en la consulta. Muchos signos cl&iacute;nicos se han descrito pero se desconoce cu&aacute;les son los m&aacute;s eficaces y los que permiten una mayor especificidad y sensibilidad diagn&oacute;stica (5,6,35,36). La Asociaci&oacute;n Internacional para el Estudio del Dolor (IASP) desarroll&oacute; criterios diagn&oacute;sticos en donde de manera inespec&iacute;fica considera que cualquier signo positivo de provocaci&oacute;n dolorosa puede ser suficiente para considerar el diagn&oacute;stico de disfunci&oacute;n de la articulaci&oacute;n sacroiliaca. De la misma forma se incluye entre los criterios la realizaci&oacute;n de un bloqueo selectivo de la articulaci&oacute;n con mejor&iacute;a cl&iacute;nica definitiva o transitoria (30-33). Esto implica que debe realizarse un procedimiento invasivo para hacer el diagn&oacute;stico.</font></p>     <p><font face="Verdana" size="2">A partir de la importancia del diagn&oacute;stico de la disfunci&oacute;n de la articulaci&oacute;n sacroiliaca, muchos autores han tratado de establecer la especificidad y sensibilidad de los diversos aspectos del dolor lumbar para diagnosticar esta patolog&iacute;a. Adicionalmente se han combinado diversos signos y s&iacute;ntomas para aumentar la probabilidad de un diagn&oacute;stico correcto (32,37). En paralelo la estad&iacute;stica durante su desarrollo ha resaltado la necesidad de medir las variables que implican un importante grado de subjetividad para establecer datos m&aacute;s objetivos, entre estos el dolor lumbar y sus caracter&iacute;sticas asociadas.</font></p>     <p><font face="Verdana" size="2">Las caracter&iacute;sticas del dolor lumbar tienen m&uacute;ltiples aspectos dif&iacute;ciles de cuantificar, el estudio de esta, y de muchas otras patolog&iacute;as, ha generado mucho inter&eacute;s en investigaci&oacute;n cl&iacute;nica y a partir de esto se han desarrollado m&eacute;todos que solucionan estas dificultades de evaluaci&oacute;n. La complejidad en la medici&oacute;n de este tipo de variables radica en la dificultad para estandarizar el proceso de evaluaci&oacute;n y de repetibilidad, por lo cual se han establecido estrategias especiales como la adaptaci&oacute;n y validaci&oacute;n de escalas con el objetivo de medir dichas variables.</font></p>     <p><font face="Verdana" size="2">En este contexto consideramos que el an&aacute;lisis cl&iacute;nico de la articulaci&oacute;n debe permitir desarrollar una escala para confirmar el diagn&oacute;stico de dolor en la ASI sin que sea necesaria la realizaci&oacute;n de procedimientos invasivos. El presente trabajo es un estudio piloto de la aplicaci&oacute;n de la escala diagn&oacute;stica para la disfunci&oacute;n de la ASI (SI5).</font></p>     <p>&nbsp;</p>     <p><font face="Verdana" size="2"><b>Materiales y métodos</b></font></p>     <p><font face="Verdana" size="2">- <i>B&uacute;squeda de informaci&oacute;n</i>: se realiz&oacute; una b&uacute;squeda de art&iacute;culos en ingl&eacute;s, franc&eacute;s y espa&ntilde;ol de todos los signos cl&iacute;nicos y paracl&iacute;nicos com&uacute;nmente utilizados para sospechar disfunci&oacute;n de la ASI en Medline, PubMed, Science Direct, Ovid y Hinari. Se encontraron 62 art&iacute;culos enfocados en el diagn&oacute;stico de dolor lumbar y su correlaci&oacute;n con la disfunci&oacute;n de la ASI. De estos art&iacute;culos se obtuvieron las caracter&iacute;sticas cl&iacute;nicas de <i>disfunci&oacute;n en la articulaci&oacute;n sacroiliaca</i>. Se identificaron 40 signos cl&iacute;nicos que sugieren disfunci&oacute;n de esta articulaci&oacute;n. Se estableci&oacute; adem&aacute;s la utilidad de las im&aacute;genes diagn&oacute;sticas en la patolog&iacute;a de la ASI; la gammagraf&iacute;a &oacute;sea fue considerada en el estudio con mayor utilidad para diagn&oacute;stico de esta patolog&iacute;a.</font></p>     <p><font face="Verdana" size="2">- <i>Evaluaci&oacute;n de la importancia de los aspectos evaluados</i>: se realiz&oacute; un listado de todos los signos y s&iacute;ntomas encontrados, al igual que ex&aacute;menes paracl&iacute;nicos para diagn&oacute;stico de disfunci&oacute;n de la ASI. Se evaluaron seg&uacute;n la sensibilidad y la especificidad encontrada en los diferentes estudios, se consideraron m&aacute;s importantes aquellos signos que fueron evaluados por varios estudios con resultados similares.</font></p>     <p><font face="Verdana" size="2">- <i>Definici&oacute;n de la escala propuesta</i>: una vez se discutieron y se definieron los aspectos cl&iacute;nicos y paracl&iacute;nicos m&aacute;s importantes para lograr el diagn&oacute;stico de disfunci&oacute;n de la ASI, se desarroll&oacute; la escala de diagn&oacute;stico de la disfunci&oacute;n de la ASI (SI5) que eval&uacute;a cinco aspectos (<a href="#t1">Tabla I</a>).</font></p>     <p>&nbsp;</p>     ]]></body>
<body><![CDATA[<p align="center"><font face="Verdana" size="2"><a name="t1"><img src="/img/revistas/dolor/v21n3/02_original1_tabla1.jpg"></a></font></p>     <p>&nbsp;</p>     <p><font face="Verdana" size="2">- <i>Dise&ntilde;o del instrumento</i>: se dise&ntilde;&oacute; un cuestionario estandarizado para evaluar los cinco aspectos de la escala (<a href="#t2">Tabla II</a>). La primera parte del cuestionario eval&uacute;a aspectos cl&iacute;nicos caracter&iacute;sticos del dolor lumbar secundario a la disfunci&oacute;n de la ASI. Se evalu&oacute; por medio de preguntas autoadministradas por el paciente o sus familiares. Deb&iacute;an establecer si presentaban o no las cuatro caracter&iacute;sticas del dolor lumbar asociadas a disfunci&oacute;n de la ASI. La segunda parte fue desarrollada por el m&eacute;dico tratante, se asign&oacute; un punto por cada signo positivo. En la &uacute;ltima parte del cuestionario se registr&oacute; si la gammagraf&iacute;a &oacute;sea reportaba &iacute;ndice sacroiliaco elevado. Se dio un punto adicional si el &iacute;ndice sacroiliaco fue mayor 1,5 (<a href="#t2">Tabla II</a>).</font></p>     <p>&nbsp;</p>     <p align="center"><font face="Verdana" size="2"><a name="t2"><img src="/img/revistas/dolor/v21n3/02_original1_tabla2.jpg"></a></font></p>     <p>&nbsp;</p>     <p><font face="Verdana" size="2">- <i>Aplicaci&oacute;n del instrumento</i>: se aplic&oacute; este cuestionario a todos los pacientes que ingresaron a tratamiento percut&aacute;neo para manejo de dolor. Fue diligenciado previo a la realizaci&oacute;n del procedimiento indicado.</font></p>     <p><font face="Verdana" size="2">- <i>Tratamiento percut&aacute;neo</i>: a todos los pacientes a quienes se les aplic&oacute; el cuestionario se les realiz&oacute; el bloqueo percut&aacute;neo que se indic&oacute; por su neurocirujano tratante. Dos semanas despu&eacute;s del procedimiento se realiz&oacute; una consulta de control donde se evalu&oacute; la respuesta al tratamiento.</font></p>     <p><font face="Verdana" size="2">- <i>Evaluaci&oacute;n de resultados</i>: se aplic&oacute; el cuestionario a 68 pacientes que ingresaron con dolor lumbar cr&oacute;nico con indicaci&oacute;n por m&eacute;dicos tratantes de tratamiento percut&aacute;neo para manejo del dolor. Fueron 62 % (42) del g&eacute;nero femenino y s&oacute;lo 38 % (26) hombres. La edad promedio fue 57 a&ntilde;os con un intervalo entre 18-84 a&ntilde;os.</font></p>     <p><font face="Verdana" size="2">Seg&uacute;n las caracter&iacute;sticas cl&iacute;nicas, examen f&iacute;sico y estudios imageneol&oacute;gicos, se establecieron cuatro grupos de pacientes: grupo 1 - pacientes con enfermedad facetaria lumbar; grupo 2 - pacientes con dolor neurop&aacute;tico de origen radicular; grupo 3 - pacientes con diagn&oacute;stico de disfunci&oacute;n de la ASI; y grupo 4 - pacientes con otras causas de dolor lumbar (en este grupo se incluyeron aquellos con dolor lumbar discog&eacute;nico y dolor osteomuscular) (<a href="#t3">Tabla III</a>). En cada grupo aplicamos la escala SI5 mediante el cuestionario estandarizado (<a href="#t2">Tabla II</a>). El puntaje m&iacute;nimo fue cero y el m&aacute;ximo 5 puntos. Todos los datos fueron registrados en una base de datos Excel 2010 para posterior an&aacute;lisis. Se evaluaron de manera descriptiva los resultados en los cuatro grupos de pacientes (<a href="#f1">Fig. 1</a>).</font></p>     ]]></body>
<body><![CDATA[<p>&nbsp;</p>     <p align="center"><font face="Verdana" size="2"><a name="t3"><img src="/img/revistas/dolor/v21n3/02_original1_tabla3.jpg"></a></font></p>     <p>&nbsp;</p>     <p align="center"><font face="Verdana" size="2"><a name="f1"><img src="/img/revistas/dolor/v21n3/02_original1_fig1.jpg"></a></font></p>     <p>&nbsp;</p>     <p><font face="Verdana" size="2"><b>Resultados</b></font></p>     <p><font face="Verdana" size="2">Al evaluar los resultados de la aplicaci&oacute;n de la Escala de Disfunci&oacute;n de la ASI (SI5) en los cuatro grupos descritos encontramos que todos los pacientes con diagn&oacute;stico de disfunci&oacute;n de la ASI (grupo 3) tienen cuatro puntos o m&aacute;s en la escala. Por el contrario en los dem&aacute;s grupos la mayor&iacute;a de los pacientes tuvieron menos de cuatro puntos en la escala SI5 (<a href="#f2">Fig. 2</a>).</font></p>     <p>&nbsp;</p>     <p align="center"><font face="Verdana" size="2"><a name="f2"><img src="/img/revistas/dolor/v21n3/02_original1_fig2.jpg"></a></font></p>     <p>&nbsp;</p>     ]]></body>
<body><![CDATA[<p><font face="Verdana" size="2">El dolor lumbar caracter&iacute;stico (definido como tres de cuatro caracter&iacute;sticas) fue positivo en la gran mayor&iacute;a de pacientes en casi todos los grupos (&gt; 80 % en el grupo de enfermedad facetaria, radiculopat&iacute;a y disfunci&oacute;n de la ASI).</font></p>     <p><font face="Verdana" size="2">Todos los pacientes con diagn&oacute;stico de disfunci&oacute;n de la ASI tuvieron test de Gaenslen positivo. En los dem&aacute;s grupos este test fue positivo en menos del 50 % de los pacientes. El test de Yeomans y Patrick tambi&eacute;n fueron positivos en todos los pacientes del grupo de disfunci&oacute;n de la articulaci&oacute;n sacroiliaca, en los dem&aacute;s grupos fue positiva en menos del 70 % de los pacientes en cada grupo.</font></p>     <p><font face="Verdana" size="2">Solo ocho pacientes tuvieron &iacute;ndice sacroiliaco elevado (&gt; 1,5), tres de estos tuvieron diagn&oacute;stico de disfunci&oacute;n de la ASI, los otros cinco pacientes tuvieron diagn&oacute;stico de enfermedad facetaria (3 pacientes) y radiculopat&iacute;a (2 pacientes).</font></p>     <p>&nbsp;</p>     <p><font face="Verdana" size="2"><b>Discusión</b></font></p>     <p><font face="Verdana" size="2">La regi&oacute;n lumbosacra (RL) corresponde al &aacute;rea comprendida entre la &uacute;ltima costilla en la parte superior, los gl&uacute;teos en la parte inferior y hasta la porci&oacute;n m&aacute;s lateral de la espalda. Esta regi&oacute;n incluye m&uacute;ltiples estructuras &oacute;seas, articulares, cartilaginosas, musculares, ligamentarias y nerviosas, que permiten el funcionamiento adecuado de esta regi&oacute;n del cuerpo que se somete a diario al mayor esfuerzo biomec&aacute;nico. La interacci&oacute;n adecuada de cada una de estas estructuras as&iacute; como su integridad anat&oacute;mica permiten en el individuo un desempe&ntilde;o diario normal para una actividad f&iacute;sica y psicol&oacute;gica adaptada a su edad y a sus caracter&iacute;sticas morfom&eacute;tricas.</font></p>     <p><font face="Verdana" size="2">La enfermedad facetaria ha sido reportada como la causa m&aacute;s frecuente de dolor lumbar por muchos autores (38-45). Sin embargo la ASI es una de las estructuras de mayor importancia en esta regi&oacute;n.</font></p>     <p><font face="Verdana" size="2">M&uacute;ltiples estudios cl&iacute;nicos han tratado de demostrar que la historia cl&iacute;nica y los hallazgos al examen f&iacute;sico son capaces de identificar la disfunci&oacute;n de la ASI como generadora de dolor. Dentro de la valoraci&oacute;n cl&iacute;nica se han establecido m&uacute;ltiples aspectos del dolor originado en esta articulaci&oacute;n, sin embargo no hay un consenso de las caracter&iacute;sticas comunes (17,19,30,46,47). En nuestro estudio la mayor&iacute;a de pacientes con dolor lumbar presenta las caracter&iacute;sticas de dolor de disfunci&oacute;n de la articulaci&oacute;n sacroiliaca en todos los grupos de pacientes (&gt; 80 %).</font></p>     <p><font face="Verdana" size="2">Para el diagn&oacute;stico de la disfunci&oacute;n de la ASI encontramos en la literatura 40 signos cl&iacute;nicos. Dentro de los diversos estudios los test de provocaci&oacute;n de dolor se han considerado m&aacute;s confiables que otros tipos de test (nivel de evidencia B) (1,30,32,33,37,48-55). Se ha determinado que hasta un 20 % de los adultos asintom&aacute;ticos tienen hallazgos cl&iacute;nicos positivos al desarrollar los test de provocaci&oacute;n sacroiliaca y mientras algunos estudios han encontrado adecuada concordancia interevaluadores otros estudios no lo demuestran.</font></p>     <p><font face="Verdana" size="2">Despu&eacute;s de la b&uacute;squeda en la literatura consideramos que de los m&aacute;s comunes test cl&iacute;nicos para diagn&oacute;stico de disfunci&oacute;n de la articulaci&oacute;n sacroiliaca son el test de Patrick (sensibilidad 63-100 % y especificidad 73-77 %), el test de Gaenslen (sensibilidad 71 % y especificidad 26 %) y el test de Yeomans por lo cual fueron incluidos en nuestro estudio (1,30,32,56). En nuestro estudio todos los pacientes con diagn&oacute;stico de disfunci&oacute;n de la ASI tienen los test positivos.</font></p>     ]]></body>
<body><![CDATA[<p><font face="Verdana" size="2">El patr&oacute;n caracter&iacute;stico de dolor ha sido otro objetivo de m&uacute;ltiples estudios, diversos investigadores han logrado reproducir el dolor en sujetos normales y han encontrado caracter&iacute;sticamente un dolor en regi&oacute;n medial del muslo inferior a la espina iliaca posterosuperior, algunos sujetos pueden referir irradiaci&oacute;n a regi&oacute;n alta del muslo (30). Nuestro estudio evalu&oacute; caracter&iacute;sticas del dolor m&aacute;s que la regi&oacute;n dolorosa, la localizaci&oacute;n del dolor seg&uacute;n diversos estudios pueden aumentar la posibilidad de un diagn&oacute;stico correcto.</font></p>     <p><font face="Verdana" size="2">Los estudios imageneol&oacute;gicos de la articulaci&oacute;n sacroiliaca han sido objeto de estudio para m&uacute;ltiples autores, la tomograf&iacute;a y la resonancia magn&eacute;tica de la articulaci&oacute;n son m&eacute;todos excelentes para detectar una lesi&oacute;n en la ASI, sin embargo muestra limitada utilidad para identificar cambios degenerativos, ya que en sujetos asintom&aacute;ticos puede mostrar cambios hasta en el 100 % de pacientes despu&eacute;s de los 50 a&ntilde;os. Por esta raz&oacute;n no lo consideramos un aspecto a evaluar en nuestro estudio (6,14,57). La gammagraf&iacute;a &oacute;sea contrario a lo anterior ha sido considerada un estudio &uacute;til en el diagn&oacute;stico de la disfunci&oacute;n de la ASI, con baja sensibilidad 13-46 % pero alta especificidad 89,5-100 % (30,58); esta &uacute;ltima caracter&iacute;stica es un aspecto importante para establecer el diagn&oacute;stico de esta patolog&iacute;a, por lo cual fue incluida en nuestra escala diagn&oacute;stica. En nuestro estudio encontramos la gammagraf&iacute;a con hipercaptaci&oacute;n sacroiliaca en el 50 % de los pacientes con diagn&oacute;stico de disfunci&oacute;n de la articulaci&oacute;n.</font></p>     <p><font face="Verdana" size="2">En la literatura revisada se recomienda el bloqueo sacroiliaco como manejo inicial del paciente con hallazgos por historia cl&iacute;nica y al examen f&iacute;sico que sugieran disfunci&oacute;n de la articulaci&oacute;n sacroiliaca. En caso de no lograr mejor&iacute;a, se indicar&iacute;a un bloqueo de las articulaciones facetarias, que por muchos autores representan la causa m&aacute;s frecuente de dolor lumbar espec&iacute;fico y el diagn&oacute;stico diferencial m&aacute;s cercano (31). La denervaci&oacute;n por radiofrecuencia de la articulaci&oacute;n sacroiliaca ha mostrado utilidad para manejo del dolor de forma m&aacute;s prolongada, sin embargo la mayor&iacute;a de autores la realizan posterior a establecer diagn&oacute;stico con un bloqueo intraarticular inicial (12,35,59-62).</font></p>     <p>&nbsp;</p>     <p><font face="Verdana" size="2"><b>Conclusión</b></font></p>     <p><font face="Verdana" size="2">La historia cl&iacute;nica y el examen f&iacute;sico de un paciente con dolor lumbar son el abordaje inicial para establecer el diagn&oacute;stico de la etiolog&iacute;a. La disfunci&oacute;n de la articulaci&oacute;n sacroiliaca es una patolog&iacute;a importante como causa de dolor lumbar, sin embargo su diagn&oacute;stico cl&iacute;nico es muy dif&iacute;cil, por lo cual se hace necesario definir una combinaci&oacute;n de test cl&iacute;nicos y de estudios paracl&iacute;nicos para lograr diagn&oacute;sticos m&aacute;s precisos. Sin embargo consideramos que se requiere un proceso estad&iacute;stico completo de validaci&oacute;n de la Escala SI5. Nuestros resultados son un estudio piloto inicial que nos va a permitir estructurar y redefinir una Escala de Disfunci&oacute;n de la ASI para concluir con mayor certeza.</font></p>     <p>&nbsp;</p>     <p><font face="Verdana" size="2"><b>Bibliografía</b></font></p>     <!-- ref --><p><font face="Verdana" size="2">1. Airaksinen O, Brox JI, Cedraschi C, Hildebrandt J, Klaber-Moffett J, Kovacs F, et al. Chapter 4. European guidelines for the management of chronic nonspecific low back pain. Eur Spine J 2006;15(Supl. 2):S192-300.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4938214&pid=S1134-8046201400030000200001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>    ]]></body>
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<body><![CDATA[<!-- ref --><p><font face="Verdana" size="2">62. Acevedo JC. Dolor lumbar discogenico. Tratamiento intradiscal con radiofrecuencia. Colombia Dolor 2007;2(1692-9985):69-82.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4938336&pid=S1134-8046201400030000200062&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     <p>&nbsp;</p>     <p>&nbsp;</p>     <p><font face="Verdana" size="2"><a href="#top"><img border="0" src="/img/revistas/dolor/v21n3/seta.gif" width="15" height="17"></a><a name="bajo"></a><b>Dirección para correspondencia:</b>    <br>Silvia Tatiana Quintero    <br>Unidad de Neurocirug&iacute;a     <br>Facultad de Medicina    <br>Pontificia Universidad Javeriana    <br>Hospital Universitario San Ignacio    ]]></body>
<body><![CDATA[<br>Bogot&aacute;, Colombia    <br>e-mail: <a href="mailto:silviatatianaquintero@gmail.com">silviatatianaquintero@gmail.com</a></font></p>     <p><font face="Verdana" size="2">Recibido: 01-09-13.    <br>Aceptado: 07-12-13.</font></p>      ]]></body><back>
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