نبذة مختصرة : Letter; International audience; Dear editor, Lumbar spinal stenosis (LSS) is the narrowing of the lumbar canal caused by degenerative processes [1]. LSS results in back and lower-limb pain when standing and walking, and symptoms regress in sitting position [1]. These symptoms are named neurogenic claudication and result from mechanical irritation and from exercise-induced ischemia of the cauda equina [2]. The inability to stand or walk alters functioning and health-related quality of life (HRQoL)
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