In Yuan et al study,[29 (link)] patients received standardized general anesthesia and basic analgesic protocol. Intraoperatively, all patients received general anesthesia which was induced by sufentanil 0.5 μg/kg, midazolam 0.04 mg/kg, propofol 1 to 2 mg/kg, and Cisatracurium 2 μg/kg intravenously, followed by continuous intravenous infusion of remifentanil 0.1 to 0.3 μg/(kg·min), propofol 2 to 5 mg/(kg·hr) and inhalation of sevoflurane to maintain anesthesia. Since postoperative day 1, the protocol of oral celecoxib restarted till postoperative 3 weeks when the patients came back to the hospital for taking out the stitches. In Yadeau et al 2016 study,[6 (link)] patients received a standardized anesthetic and multimodal analgesic protocol. In Yadeau et al 2022 study,[28 (link)] patients received a standard intraoperative and postoperative multimodal anesthetic protocol: a spinal-epidural (subarachnoid mepivacaine, 45–60 mg); adductor canal block (ultrasound-guided; 15 cc bupivacaine, 0.25%, with 2 mg preservative-free dexamethasone). For postoperative pain management, patients were scheduled to receive the study medication once daily for 14 days; 4 doses of 1000 mg IV acetaminophen every 6 hours followed by 1000 mg oral acetaminophen every 8 hours; 4 doses of 15 mg IV ketorolac followed by 15 mg meloxicam every 24 hours; and 5 to 10 mg oral oxycodone was given as needed for pain. Patients could have pain medications adjusted as indicated. In Koh et al study,[12 (link)] all patients had a postoperative intravenous patient-controlled anesthesia (PCA) pump that administered 1 mL of a 100-mL mixture containing 2000 mg of fentanyl on demand. In Kim et al study,[27 ] all patients received intravenous PCA encompassing delivery of 1 mL of a 100 mL solution containing 2000 µg of fentanyl postoperatively. In Ho et al study,[26 (link)] patients were routinely offered a single shot spinal anesthesia consisting of an intrathecal dose of bupivacaine 10 to 12.5 mg with fentanyl 10 mg. After surgery, pain treatment consisted of PCA with intravenous injection of morphine. The settings were 1 mg bolus, 5 minutes lockout time, and a maximum hourly limit of 8 mg. All patients were also given acetaminophen 1 g 6 hourly.