quarta-feira, 10 de abril de 2013

AS HÉRNIAS DE DISCO LOMBARES E CERVICAIS ESTÃO PRESENTES NA MAIOR PARTE DA POPULAÇÃO ASSINTOMÁTICA

Como pode ser lido nos resumos abaixo, as hérnias de disco estão presentes na maior parte dos pacientes assintomáticos, ou seja, nem toda hérnia causa dor. O causador da dor, de fato, é uma reação química e imune no entorno dos nervos da coluna, e é isto que deve ser tratado!
 
 
J Korean Neurosurg Soc. 2013 Jan;53(1):31-8.
Prevalence of disc degeneration in asymptomatic korean subjects. Part 1 : lumbar spine.
Kim SJ, Lee TH, Lim SM.

Source: Department of Neurosurgery, Ewha Womans University School of Medicine, Mokdong Hospital, Seoul, Korea.

Abstract

OBJECTIVE: Asymptomatic patients show high degeneration prevalence at lumbar disc in previous literatures. Unfortunately, there are few Korean data, so the authors attempted to analyze the prevalence of disc degeneration in highly selective asymptomatic Korean subjects using MRI.
METHODS: We performed 3 T MRI sagittal scans from T12 to S1 on 102 asymptomatic subjects (50 men and 52 women) who visited our hospital between the ages of 14 and 82 years (mean age 46.3 years). All images were read independently by three observers (two neurosurgeons and one neuroradiologist) who were not given any information about the subjects. We classified grading for lumbar disc herniation (HN), annular fissure (AF), and nucleus degeneration (ND), using disc degeneration classification.
RESULTS: The prevalence of HN, AF, and ND were 81.4%, 76.1%, and 75.8% respectively. Almost all levels showed an age-related proportional tendency with some exceptions.
CONCLUSION: In asymptomatic Korean subjects, the abnormal findings showed high prevalence of AF, ND, and extrusion. Especially in young ages, the authors found that bulging, protrusion, and AF showed high prevalence at L4/5 and L5/S1. And ND showed high prevalence at L5/S1. So, all lumbar disc degenerations are not pathologic, especially in children and adolescents.


J Korean Neurosurg Soc. 2013 Feb;53(2):89-95. 
Prevalence of disc degeneration in asymptomatic korean subjects. Part 2 : cervical spine.
Lee TH, Kim SJ, Lim SM.


Source: Department of Neurosurgery, 21st Century Hospital, Seoul, Korea.

Abstract

OBJECTIVE:Similar to back pain, neck pain has recently shown to have increasing prevalence. Magnetic resonance imaging (MRI) is useful in identifying the causes of neck pain. However, MRI shows not only pathological lesions but also physiological changes at the same time, and there are few Korean data. The authors have attempted to analyze the prevalence of disc degeneration in highly selective asymptomatic Korean subjects using MRI.
METHODS: We performed 3 T MRI sagittal scans from C2 to T1 on 102 asymptomatic subjects (50 men and 52 women) who visited our hospital between the ages of 14 and 82 years (mean age 46.3 years). All images were read independently by three observers (two neurosurgeons and one neuroradiologist) who were not given any information about the subjects. We classified grading for cervical disc herniation (HN), annular fissure (AF), and nucleus degeneration (ND), using disc degeneration classification.
RESULTS: The prevalence of HN, AF, and ND were 81.0%, 85.9%, and 95.4%, respectively. High prevalence of HN, AF, and ND was shown compared to previous literature.
CONCLUSION: In asymptomatic Korean subjects, the abnormal findings of 3 T MRI showed a high prevalence in HN, AF, and ND. Several factors might play important roles in these results, such as population-specific characters, MRI field strength, and disc degeneration grading system.

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