• Mohammad Ali Abduallah, Sameh Abdelkhalik Ahmed, and Mohamed Shebl Abdelghany.
• Department of Anaesthesia and Surgical Intensive Care, Faculty of Medicine, Tanta University, Tanta, Al Gharbia Governate, Egypt.
• Indian J Anaesth. 2020 Oct 1; 64 (10): 887-893.

Background And AimThe best analgesic technique after hip surgeries is a matter of debate. This clinical trial aimed to assess the effect of transmuscular ultrasound-guided quadratus lumborum (QL) block on post-operative analgesic consumption after hip arthroplasty in elderly patients.MethodsThis prospective randomised double-blind study was carried out on 60 patients aged 60-80 years presented for total hip replacement under unilateral spinal anaesthesia. Patients were randomly allocated to one of two groups: A control group, receiving sham transmuscular QL block (QLB) (1 ml of normal saline), and a QL group, receiving real transmuscular QLB (30 ml of plain bupivacaine 0.25%). Post-operative morphine consumption (primary outcome), post-operative pain score (secondary outcome), time to the first request of rescue analgesia, patient's satisfaction and the occurrence of post-operative complications were measured.ResultsCompared to the control group, the use of QLB in the second group significantly decreased intravenous morphine consumption postoperatively from 8.50 ± 3.06 mg to 5.60 ± 3.22 mg (P = 0.0007) with a significant prolongation of the time to the first call for analgesia (P < 0.0001). It also decreased the post-operative visual analogue score 4 h, 6 h and 8 h postoperatively (P < 0.05). However, there was no difference between both the groups regarding patient's satisfaction and the occurrence of complications (P > 0.05).ConclusionThe use of transmuscular QLB in patients undergoing total hip replacement decreased post-operative analgesic consumption and post-operative pain score and prolonged post-operative analgesia. It did not affect patients' satisfaction and occurrence of post-operative complications.Copyright: © 2020 Indian Journal of Anaesthesia.

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