The Quadro-Iliac Plane (QIP) Block in Hip Arthroplasty

The goal of this observational study is to learn about the effectiveness of different locoregional anesthesia techniques, particularly the Quadro-Iliac Plane (QIP) block, in patients undergoing total hip arthroplasty. The main question it aims to answer is:

Does the QIP block improve postoperative recovery and pain control compared to other routinely used locoregional anesthesia techniques in patients undergoing hip replacement surgery?

Participants undergoing hip arthroplasty as part of their standard clinical care will receive one of the locoregional anesthesia techniques already in use at the hospital (including QIP block, fascia iliaca block, PENG block, or others, according to anesthesiologist choice). Postoperative outcomes will be collected prospectively, including quality of recovery (QoR-15 at 24 hours), pain scores at rest and during movement at predefined time points up to 48 hours, analgesic consumption, time to first analgesic request, time to mobilization, and occurrence of complications.