<?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>S2306-41022018000400203</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Comparative study between Plate-Graff, Plate-Cage and PEEK cage in cervical spine fusion]]></article-title>
<article-title xml:lang="es"><![CDATA[Estudio comparativo entre Plate-Graff, Plate-Cage y Peek cage en la fusión de la columna cervical]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reyes-Sánchez]]></surname>
<given-names><![CDATA[AA]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Estrada-Gómez]]></surname>
<given-names><![CDATA[JA]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zarate-Kalfopulus]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alpizar-Aguirre]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rosales-Olivares]]></surname>
<given-names><![CDATA[LM]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Nacional de Rehabilitación Head of Special Surgery Division ]]></institution>
<addr-line><![CDATA[Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Nacional de Rehabilitación Spine Surgery Service ]]></institution>
<addr-line><![CDATA[Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Nacional de Rehabilitación Head of Spine Surgery Service ]]></institution>
<addr-line><![CDATA[Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2018</year>
</pub-date>
<volume>32</volume>
<numero>4</numero>
<fpage>203</fpage>
<lpage>208</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2306-41022018000400203&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2306-41022018000400203&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2306-41022018000400203&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Objective:  To compare results of Plate-Graff, Plate-Cage and PEEK cage in patients with cervical stenosis.  Material and methods:  Prospective, with before and after intervention and comparative study. From January 2005 to October 2011 we included 37 patients (male: 48.6%, female: 51.4%) post-surgery by anterior approach; 3 groups via: Group I, arthrodesis with Plate-Graff n = 12 (M 41.7%, F 58.3%) with 22 levels, group II, Plate-Cage n = 11 (M 63.6% 36.4% F) 19 levels, group III, PEEK cage, n = 14 (M 0% F 50%) with 25 levels. Functional assessment pre- and postoperative with neck disability index (NDI) and visual analogue scale for pain (VAS). The radiological assessment with X-rays only. Descriptive statistics were obtained. Wilcoxon method use according to data distribution, non parametric tests of ranges with sign of Kruskal-Wallis for comparison between more than two groups, and significance level with p &lt; 0.05. We used the statistical package SPSS version 15.  Results:  The majority of patients was found between the sixth and eighth decade of life. At one year of follow up the NDI and pain with VAS shown improvement with statistical difference in three groups (p = 0.001). However, the radiographic measurements per year of follow-up showed a significant improvement of segmental lordosis (p = 0.02) only in patients with Plate-Graff.  Conclusions:  Using the graft offers best clinical and radiographic results compared with the Plate Cage and box peek to one year of follow-up.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Objetivo:  Comparar resultados de placa-injerto, caja-placa y caja-PEEK, en pacientes con conducto cervical estrecho.  Material y métodos:  Estudio prospectivo, en panel antes y después, de intervención y comparativo. De Enero de 2005 a Octubre de 2011, muestra de 37 pacientes (masculino: 48.6%, femenino: 51.4%) postoperados por vía anterior; formando tres grupos: grupo I, artrodesis con placa-injerto n = 12 (M 41.7%, F 58.3%) con 22 niveles; grupo II, caja-placa n = 11 (M 63.6%, F 36.4%) con 19 niveles; grupo III, caja-PEEK, n = 14 (M 50%, F 50%) con 25 niveles. La evaluación funcional pre- y postoperatoria mediante la escala de discapacidad cervical y escala visual análoga de dolor. La evaluación radiológica con radiografías de columna cervical. Se obtuvo estadística descriptiva. De acuerdo con la distribución de los datos se usaron pruebas no paramétricas de rangos con signo de Wilcoxon, y Kruskal-Wallis para comparación entre más de dos grupos. Con nivel de significancia de p&lt;0.05. Se utilizó el paquete estadístico SPSS versión 15.  Resultados:  La mayoría de los pacientes se encontró entre la sexta y octava década de la vida. Al año de postoperados el índice de discapacidad cervical y mejoría del dolor con EVA mostraron mejoría con diferencia estadística en los tres grupos (p = 0.001). Sin embargo, las mediciones radiográficas al año de seguimiento mostraron una mejoría significativa de la lordosis segmentaria (p = 0.02) sólo en pacientes operados con placa-injerto.  Conclusiones:  El uso de la placa-injerto ofrece mejores resultados clínicos y radiográficos en comparación con la caja-placa y caja-PEEK, al año de seguimiento.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Cervical arthrodesis]]></kwd>
<kwd lng="en"><![CDATA[cervical osteosynthesis]]></kwd>
<kwd lng="en"><![CDATA[spinal surgery]]></kwd>
<kwd lng="es"><![CDATA[Artrodesis cervical]]></kwd>
<kwd lng="es"><![CDATA[osteosíntesis cervical]]></kwd>
<kwd lng="es"><![CDATA[cirugía de columna]]></kwd>
</kwd-group>
</article-meta>
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