This randomized controlled trial evaluates the effect of ultrasound-guided iPACK block with Adductor Canal Block (ACB) on the Systemic Immune-Inflammation Index (SII) in elderly patients undergoing total hip arthroplasty under spinal anesthesia. SII, calculated as platelet × neutrophil / lymphocyte count, is used as a composite marker of perioperative inflammatory and immune response. The study investigates whether iPACK block with ACB attenuates the systemic inflammatory reaction to surgical trauma compared to sham block.
Patients with ASA classification I-III
Aged 65-100 years
Who will be scheduled for hip arthroplasty under spinal anesthesia
Patients who have a history of bleeding diathesis
Take anticoagulant therapy
History of chronic pain before surgery
Multiple trauma