Investigating the Effect of Pericapsular Nerve Group Block on Postoperative Analgesia in Hip Surgery

Purpose: With increasing numbers of patients undergoing hip surgery, postoperative analgesia planning for patients also becomes more important. Post-hip surgery pain is categorized as acute and severe, and its effective treatment is paramount. Our study investigates the effectiveness of Pericapsular Nerve Group (PENG) block in postoperative analgesia, the amount of opioid used, and the presence of postoperative nausea and vomiting in hip surgeries in a multimodal analgesia context. Materials and Method: This is a prospective study that includes 102 patients in total, undergoing elective hip surgery. The patients were randomly divided into two groups, and the first group (Group P, n=51) received a PENG block, while the second group (Group C, n=51) received no block. Intraoperative hemodynamic data, discharge-hospitalization time, presence of complications, visual pain scores (VAS) (rest and dynamic) were recorded. Total tramadol dose consumed, additional analgesic requirement, and time of first analgesic were evaluated. Results: 102 patients completed the study. Rest and dynamic VAS scores were significantly lower in the blocked PENG group at all times postoperatively (p<0.001). Total tramadol dosage and additional analgesic rates were significantly lower in the blocked PENG group (p<0.001). Also, the rate of requiring additional analgesics and receiving rescue analgesia at an earlier time was significantly higher in the non-block group compared to the blocked PENG group (p<0.001, p=0.023). Conclusion: We believe that application of a PENG block in hip surgeries will reduce patient pain scores, allowing for experiencing less pain with fewer opioids, and protection from side effects of opioids.