Introduction
LSS, chronic spinal disease, pain
LUMBAR SPINAL STENOSIS
Lumbar spinal stenosis (LSS) is a common chronic spinal disease, more experienced by people aged over 50 yearsPostoperative pain is one of the most common postoperative features of patients with lumbar spinal stenosisLidocaine is one of the most widely used local anesthetics in clinics. Previous studies have shown that patients received a bolus of 1.5–2 mg/kg lidocaine completed within 10 min before the induction of anesthesia followed by continuous infusions of 2 mg/kg/hour lidocaine intravenously during anesthesia could improve QoR-40 scores in patients with abdomen surgery