Estenose degenerativa do canal lombar: correlação entre o índice de Oswestry e imagem de ressonância magnética

Abstract

OBJETIVOS: Verificar a relação entre o grau de estenose do canal lombar (ECL) com a ressonância nuclear magnética (RM) e a gravidade da disfunção, de acordo com o Índice de Oswestry em pacientes com ECL e em controles. MÉTODOS: Vinte e três pacientes com diagnóstico de ECL foram comparados com grupo controle de 17 voluntários. Todos foram submetidos a RM e responderam ao questionário de Oswestry. A análise estatística utilizou o teste exato de Fisher, de Mann-Whitney e de Spearman. RESULTADOS: Dor lombar foi a queixa mais frequente em ambos os grupos. O índice de Oswestry mostrou disfunção, em média, em 45,69% no grupo ECL e 11,60% no controle. A RM revelou que a área longitudinal do saco dural, o diâmetro do canal e os recessos laterais e forames estavam igualmente alterados em ambos os grupos. CONCLUSÕES: Não houve correlação entre o grau de estenose e o índice de Oswestry nos dois grupos.

Correlation Between Lumbar Spinal Stenosis Based on Morphology of the Dural Sac and the Quality of Life

“…It has already been shown in the literature that the ODI did not have a significant relationship with the area of the cross-section of the dural sac, or with the narrowing observed in radiological studies either in patients with and without spondylolisthesis. 12,26,27 The relationship was inversely proportional in the SSF-36. 17 However, there was no statistically significant correlation in this study, taking the PCS and MCS into account.…”

“…Additionally, four other studies did not observe any relationship between the preoperative symptoms and the MRI findings. 8,12,[26][27][28] We believe that on the positive side of the classification is its assessment of the disposition of the nerve roots within the narrow canal, while on the negative side, we note the subjective measurement of the area of the central canal, in addition to the fact that it does not consider the possibility of foraminal stenosis, which, in many cases, may be the cause of the main clinical complaint of the patient. Therefore, it is not sufficient to define the severity level of the case.…”

Comparing Preoperative Quality of Life Questionnaire in Lumbar Stenosis

“…1 It is increasingly frequent due to the greater life expectancy of the world population. 2 It has been defined as a condition in which there is a decrease in the space available for neural and vascular elements, secondary to degenerative changes in bone structures and soft tissues, with the consequent invasion of the spinal canal. 3,4 Neurogenic claudication is a classic alteration related to pain and gait difficulty.…”