Recovery after Hip Arthroplasty with Quadro-Iliac Plane Block: A Randomised Trial

To evaluate the effectiveness of the quadro-iliac plane block (QIPB) in enhancing postoperative recovery after total hip arthroplasty (THA), using the quality of recovery-15 (QoR-15) score. Randomised, controlled, multicentre study. Place and Duration of the Study: Konya City Hospital and Harran University, Faculty of Medicine, Turkiye, between March and April 2025. Patients were randomised to receive either the QIPB (Group Q) or multimodal analgesia alone (Group C), with a total of 64 participants enrolled. The primary measure was the QoR-15 score, evaluated 24 hours postoperatively. The total QoR-15 scores were normally distributed and compared between the groups using an independent samples t-test. Secondary measures comprised postoperative pain intensity, the quantity of rescue analgesics administered, time to initial analgesic intervention, overall patient satisfaction, and the incidence of nausea, vomiting, and antiemetic administration. Group Q demonstrated significantly higher QoR-15 scores compared to Group C (Group Q: 127 ± 4; Group C: 89 ± 7; p <0.001). Furthermore, Group Q achieved superior scores across all subdomains, including postoperative pain, physical comfort, physical independence, psychological support, and emotional state (p <0.001). The QIPB is a novel and effective regional analgesic technique that offers significant postoperative pain relief, enhances patient comfort and satisfaction, and contributes positively to the quality of recovery after THA. Postoperative pain management, Regional anaesthesia, Quadro-iliac plane block, Quality of recovery-15, Total hip arthroplasty.