Efficacy of the Erector Spinae Plane Block for Lumbar Spinal Surgery: A Retrospective Study

STUDY DESIGN: A retrospective study. PURPOSE: The first research on the erector spinae plane (ESP) block was published in 2016. To our knowledge, no cohort studies or randomized controlled trials of the ESP block were performed in 2016 and 2017. OVERVIEW OF LITERATURE: This study retrospectively investigated the efficacy of the ESP block in pain management after lumbar spinal surgery. METHODS: Patients who underwent lumbar spinal surgery in 2017 were enrolled in the study. Those who underwent secondary surgery with local anesthesia other than the ESP block were excluded. The primary outcome was the Numerical Rating Scale (NRS) pain score at various time points until the morning of postoperative day 2. The secondary outcomes were the amount of intravenous fentanyl administered during the first 24 hours following the surgery and the number of patients with complaints of complications such as nausea and vomiting until the morning of postoperative day 2. RESULTS: The data of 41 patients undergoing lumbar spinal surgery were retrospectively analyzed. Of these, 23 received only general anesthesia (G group), whereas the other 18 patients received the ESP block in addition to general anesthesia (E group). The NRS pain scores and the amount of fentanyl administered were lower in the G group than in the E group at all measured time points (all data were less than p<0.05). There was no significant difference in the incidence of complications between the two groups (p=0.11). CONCLUSIONS: The ESP block provides effective postoperative analgesic effect for 24 hours in patients undergoing lumbar spinal surgery.

Efficacy of the Thoracolumbar Interfascial Plane Block for Lumbar Laminoplasty: A Retrospective Study

STUDY DESIGN: This paper was a single center-based retrospective study with prospective data collection. PURPOSE: Compared with other surgeries, limited options are available for perioperative pain management in spinal surgery. Therefore, we aimed to identify new pain management in this study. OVERVIEW OF LITERATURE: The thoracolumbar interfascial plane (TLIP) block has been reported to provide effective regional analgesia in the lumbar region. This study investigated the efficacy of the TLIP block for pain management in lumbar laminoplasty. METHODS: We investigated patients who underwent lumbar laminoplasty for the treatment of lumbar spinal canal stenosis from April to October 2015. Patients with secondary surgery or surgery involving more than four intervertebral spaces were excluded. The primary outcome measure was the pain scale score within 48 hours after the surgery. The secondary outcomes were the number of additional analgesic drugs used and the number of patients complaining of complications, such as nausea and vomiting, within 24 hours after the surgery. RESULTS: We retrospectively assessed the data of 44 patients who underwent lumbar laminoplasty. Of these, 25 patients received only general anesthesia (G group), whereas 19 patients received the TLIP block along with general anesthesia (T group). Compared with the G group, the T group reported lower pain scores for pain at 1, 2, 4, and 24 hours postoperatively. Moreover, the number of patients who received the additional analgesic pentazocine was lower in the T group than in the G group. The two groups showed no significant differences in the incidence of complications. CONCLUSIONS: The TLIP block provides effective analgesia for 24 hours postoperatively in patients undergoing lumbar laminoplasty.