Ultrasound-Guided Erector Spinae Plane Block versus Modified-Thoracolumbar Interfascial Plane Block for Lumbar Discectomy Surgery: A Randomized, Controlled Study

Postoperative Analgesic Efficacy of Erector Spinae Plane Block in Patients Undergoing Lumbar Spinal Surgery: A Systematic Review and Meta-Analysis

“…Six studies were further excluded for the following reasons: studies were reviews and case reports (n = 2) [11,12], retrospective study (n = 1) [13], compared ESPB with other types of regional blocks (n = 2) [14,15], and an ongoing trial (n = 1) [16]. Finally, six studies [8,[17][18][19][20][21] satisfied the inclusion criteria and were used for the meta-analysis. The literature screening process is illustrated in Fig.…”

“…ESPB was performed between T10 and L3. Four studies [8,[19][20][21] used bupivacaine as a local anesthetic, while two studies used ropivacaine. The concentration of the local anesthetics ranged from 0.025 to 0.5%.…”

“…The concentration of the local anesthetics ranged from 0.025 to 0.5%. PCIA was used to relieve postoperative pain in five trials [8,17,18,20,21]. Detailed information regarding studies included in the meta-analysis is presented in Table 1.…”

“…Four studies [8,17,19,21] explicitly reported the method of random sequence generation, and three studies [17,18,20] described allocation concealment. None of the studies described the blinding of participants and personnel.…”

“…All the assessors were blinded, there was no selective reporting and the other bias, the ''risk of bias'' was graded as ''not serious''; I 2 [ 30%, which indicated ''inconsistency'', was graded as ''serious''. Three trials [17,19,21] reported opioid consumption and pain scores as median (interquartile range) or median (min-max), which indicated ''indirectness'' was classified as ''serious''. The overall results of GRADE are presented in Table 2.…”