Conus Medullaris Position in an Adult Population: Analysis of Magnetic Resonance Imaging/Posicion del Cono Medular en una Poblacion Adulta: Analisis con Imagenes de Resonancia Magnetica
The objective of this study was to evaluate the variation in position of the conus medullaris (CM) in male and female patients without spinal deformity, to correlate the termination level in magnetic resonance (MR) images of the lumbar spine. 921 patients consisted of 607 men and 314 women were eval...
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Published in: | International journal of morphology Vol. 34; no. 4; p. 1352 |
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Main Authors: | , , , , , , |
Format: | Journal Article |
Language: | Spanish |
Published: |
Universidad de La Frontera, Facultad de Medicina
01-12-2016
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Subjects: | |
Online Access: | Get full text |
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Summary: | The objective of this study was to evaluate the variation in position of the conus medullaris (CM) in male and female patients without spinal deformity, to correlate the termination level in magnetic resonance (MR) images of the lumbar spine. 921 patients consisted of 607 men and 314 women were evaluated by MRI. The strength of T1 weighted MRI device was 1.5 Tesla. The patients were in supine position when measured. The termination level of the conus medullaris was recorded in relation to the upper, middle or lower third of the adjacent vertebra and the adjacent intervertebral disc. The patients in our study group were examined for low back pain. The members with spinal deformity were excluded. The distribution of conus medullaris localization was measured to range from T12 to L2- L3. There was a statistically significant difference in the mean conus medullaris position related to gender also a significant difference between increasing age and conus position in female patients. These findings suggest that the distribution of CM location in a large adult population was shown to range from the upper third of T12 to the lower third of L2-L3 disc space both in women and men. KEY WORDS: Conus medullaris; MRI. El objetivo de este estudio consistio en evaluar la variacion en la posicion del cono medular (CM) en pacientes masculinos y femeninos sin deformidad espinal, para correlacionar el nivel de terminacion en imagenes de resonancia magnetica (RM) de la columna lumbar. Fueron evaluados por RM un total de 921 pacientes, 607 hombres y 314 mujeres. La fuerza ponderada del dispositivo de RM en T1 fue 1,5 Tesla. Los pacientes se ubicaron en posicion supina al momento de la medicion. El nivel de terminacion del cono medular se registro en relacion con el tercio superior, medio o inferior de la vertebra adyacente y el disco intervertebral adyacente. Los pacientes de nuestro grupo de estudio fueron examinados por dolor lumbar. Se excluyeron los individuos con deformidad espinal. La distribucion de la localizacion del cono medular se midio, con variaciones entre T12 a L2-L3. Hubo una diferencia estadisticamente significativa en la posicion media del cono medular relacionada con el sexo y tambien una diferencia significativa entre el aumento de la edad y la posicion del cono medular en las mujeres. Estos hallazgos sugieren que la distribucion de la ubicacion del CM en una poblacion adulta se encontro en un rango que se extendio desde el tercio superior de T12 al tercio inferior del espacio discal L2- L3, tanto en mujeres como en hombres. PALABRAS CLAVE: Cono medular; RMN. |
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ISSN: | 0717-9367 |