Background
arthrodesis, postoperative pain, ESPB
Erector spinae plane block (ESPB) is a recent locoregional anaesthetic technique [Despite the increasing interest in ESPB for spinal procedures, early publications were limited to case series or small trials [In Europe, the incidence of spinal arthrodesis is reported to be 20–33 per 100,000 person-years [The hypothesis of this study is that ESPB might become a fundamental technique for reducing postoperative pain, perioperative opioid consumption, and the patients’ wellbeing after posterior lower-thoracic or lumbar spinal fusions, which are among the most painful surgeries to date [