QIPB in Inguinal Hernia

Patients in Group Q will be placed in the lateral position. A low-frequency convex transducer and a 100-mm block needle will be used. Following sterilization, the transducer will be placed parasagittally at the distal attachment of the quadratus lumborum muscle to the iliac crest. The iliac crest and quadratus lumborum muscle will be visualized, with the erector spinae muscle above and the psoas major muscle below. Using an in-plane technique, the needle will be directed toward the iliac crest. After confirmation with 5 mL of isotonic sodium chloride, 40 mL of 0.25% bupivacaine will be injected incrementally with intermittent aspiration.

All patients will receive IV paracetamol (1 g, 3×1) and IV tenoxicam (20 mg, 2×1).