Is the lasègue sign a predictor of outcome in lumbar disc herniation surgery?

Abstract

Objective: Evaluate the predictive value of the Lasègue sign on self-reported quality of life measures (HRQoL) in patients who undergo microdiscectomy. Methods: 95 patients with clinical and radiological diagnosis of LDH who underwent microdiscectomy were included. The patients were assessed by a neurological examination and answered validated instruments to assess pain, disability, quality of life, and mood disorder in the preoperative period, and 1, 6 and 12 months after surgery. Results: Preoperative Lasègue sign was identified in 56.8% (n=54/95) of the cases. There was no difference between the groups in the preoperative period regarding HRQoL. At one year follow-up no statistically significant difference in HRQoL was observed in the Lasègue group. The discrimination capacity of the preoperative Lasègue sign to determinate variations in HRQoL outcomes one year postoperatively was low. Conclusion: Lasègue sign is not a good predictor of outcome after microdiscectomy for LDH.Keywords: Intervertebral disc displacement; Quality of life; Prognosis; Spine/surgery. RESUMO Objetivo: Avaliar o valor preditivo do Sinal de Lasègue em medidas de qualidade de vida (HRQoL) em pacientes submetidos a microdiscectomia. Métodos: 95 pacientes com diagnóstico clínico e radiológico de HDL submetidos à microdiscectomia foram incluídos. Os pacientes foram avaliados por exame neurológico e responderam instrumentos validados para medir dor, incapacidade, qualidade de vida e transtornos do humor no período pré-operatório e 1, 6 e 12 meses após a cirurgia. Resultados: O sinal de Lasègue no pré-operatório foi identificado em 56,8% (n = 54/95) dos casos. Não houve diferença entre os grupos no pré-operatório em relação à HRQoL. Em um ano de pós-operatório não foi observada diferença estatística com relação à HRQoL no grupo com Lasègue. A capacidade de discriminação do Sinal de Lasègue pré-operatório para determinar variações na

Can Numerical Pain Rating Scale and Pain Catastrophic Scale Predict Lumbar Radiculopathy?

“…In our study, the Lasegue sign was found to be positive in 182 of 345 cases who presented with the complaint of low back pain, and in 162 (89%) of these cases, herniation findings were confirmed by radiology, similar to the rates in the studies mentioned. In addition to these studies, one study reported that only 56.8% (n=54/95) of the patients who underwent microdiscectomy had a positive pre-operative Lasegue sign [17] .…”