Five randomized controlled trials including 808 patients undergoing total hip arthroplasty were included in this systematic review and meta-analysis comparing PENG block versus placebo. Pooled outcomes of interest included pain score in the post-anesthesia care unit (PACU), pain scores at 6, 24, and 48 hours postoperatively, time to first opioid use, total opioid consumption at 24 and 48 hours, an...