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Abstract
Please confirm that an ethics committee approval has been applied for or granted: Not relevant
Background and Aims Hip arthroscopy is associated with significant postoperative pain. The pericapsular nerve group (PENG) block is a relatively novel ultrasound-guided regional technique that may provide analgesia to patients undergoing hip arthroscopy. The evidence from studies conducted so far has been inconclusive. We performed this review to investigate the efficacy of PENG block in reducing postoperative pain in patients undergoing hip arthroscopy.
Methods Studies from electronic databases such as MEDLINE, Embase, PubMed, CINAHL, Cochrane Database of Systematic Reviews, Cochrane Central Register of Controlled Trials databases and clinicaltrials.gov were included in our study. We investigated immediate postoperative pain scores, pain scores at 24 hours after the procedure and amount of opioid analgesia required.
Results Following our search 5 studies were found and included in our review. These included 3 RCTs and 2 retrospective studies. Data from 280 patients were analysed. It seems that while PENG block can reduce pain at 24 hours after the procedure, pain scores in post-anaesthesia care unit (PACU) are not improved. Similarly, a smaller amount of opioids is required at 24 hours, but not immediately after the surgical procedure.
Ultrasound-guided PENG block
Conclusions PENG block for hip arthroscopy offers better postoperative analgesia with less opioid consumption at 24 hours postoperatively, but not in the immediate postoperative period.