Abstract:Objective To verify the analgesic efficacy of sacral erector spinae plane block combined with sacral plexus block in elderly patients undergoing hip arthroplasty, and to analyze its differential impacts on intraoperative vital signs and short-term postoperative recovery compared with conventional general anesthesia.Methods Eighty elderly patients who received the combined sacral erector spinae plane and sacral plexus blocks along with general anesthesia for hip arthroplasty between September 2024 and February 2025 were assigned to the combination group. Another 80 elderly patients who underwent the same surgery under conventional general anesthesia between January 2022 and June 2022 were retrospectively analyzed as the control group. Analgesic outcomes and anesthesia recovery profiles were compared between the two groups.Results Comparisons of mean arterial pressure (MAP), heart rate (HR), bispectral index (BIS), and blood glucose at time points T0 to T6 yielded the following results: (1) Significant differences were observed in MAP, HR, BIS, and blood glucose across different time points (P < 0.05). (2) No significant intergroup differences were found in MAP and BIS (P > 0.05), whereas significant differences existed in HR and blood glucose (P < 0.05). (3) The trends of change in MAP, HR, and blood glucose differed significantly between the two groups (P < 0.05), with the control group exhibiting more pronounced fluctuations in these parameters over time. No significant difference was found in the trend of BIS change (P > 0.05). The combination group showed lower Numeric Rating Scale (NRS) scores upon leaving the post-anesthesia care unit (PACU) and lower total remifentanil consumption than the control group (P < 0.05). No significant difference was observed in operative time between the two groups (P > 0.05). The combination group had shorter time to emergence, time to liberation from respiratory support, and time to satisfactory recovery of consciousness than the control group (P < 0.05). The total incidence of complications during recovery was lower in the combination group (P < 0.05).Conclusion For elderly patients undergoing hip arthroplasty, the application of sacral erector spinae plane block combined with sacral plexus block and general anesthesia provides effective analgesia, maintains stable intraoperative circulatory function, attenuates stress response, shortens anesthesia recovery time, reduces the incidence of complications, and thereby facilitates rapid.