Postoperative
Postoperative pain, pain
After surgery, all patients were transferred to the post-anesthesia care unit (PACU), where they remained until meeting the discharge criteria. Postoperative pain was assessed every 15 min. Patients with VAS scores of 40/100 or higher were managed with 2–4 mg of IV morphine every 10 min as needed. If the patient continued experiencing severe pain at the anterior aspect of the knee after the administration of 0.2 mg/kg of morphine within the first 6 h post-surgery, the PNB would be considered to have failed and a rescue FNB would be performed.Once out of the PACU, for the first 48 postoperative hours, the analgesic regimen consisted of 50 mg of IV dexketoprofen every 8 h and 1 g of IV paracetamol every 8 h. If the patient requested more analgesics and VAS score was 40/100 or higher, 1 mg/kg of IV tramadol was administered and repeated every 8 h if needed. IV morphine (2 mg/h) was used as second line rescue agent.