Ultrasonography-guided articular branch of femoral nerve and anterior obturator nerve block for perioperative pain in hip surgery

30 patients undergoing hip surgeries (hemiarthroplasty, percutaneous femoral nailing, and dynamic hip screwing) under subarachnoid block

Ultrasonography-guided block to the articular branch of the femoral nerve (ABFN) and anterior obturator (AO) nerve with ropivacaine (0.2%) 35 mL (20 + 15 mL) and 8 mg dexamethasone just before spinal anesthesia

Pain scores using Numeric Pain Rating Scale at pre-procedure, followed by 0, 4, 8, and 12 h after the blockpatient reported