PENG block versus femoral block postoperative analgesia of hip surgeries.

Abstract

Introduction: PENG pericapsular nerve group block guided by ultrasonography is a safe and novel technique that has emerged as an alternative to the femoral block and is based on the block of the sensory branches that innervate the hip joint, causing a significant analgesic block. at the level of said joint. Objective: To evaluate the effectiveness of the PENG block versus the femoral block in postoperative analgesia of patients undergoing hip surgery. Methodology: Randomized, double-blind clinical trial in adult patients undergoing hip surgery. Two groups were formed at random, one group received spinal anesthesia and PENG block, while the other received spinal anesthesia with femoral block. Postoperative pain was evaluated with the Visual Analog Scale and muscle strength with the Oxford Scale. Results: The average of the EVN values at 24 hours was 1.73 in the PENG group and 2.8 in the Femoral group (p= 0.001). The average Oxford scale score at 24 hours was 3.18 in the PENG group and 1.91 in the Femoral group (p= 0.001). Two patients with femoral block required the use of opioids to relieve pain at 12 hours.

Conclusions: Patients who received the PENG block had a lower average score on the pain scale and greater muscle strength, with significant differences being found at 24 hours.