A randomised controlled trial comparing adductor canal block and femoral nerve block for knee arthroplasty

Singapore Medical Journal
Yean Chin LimShumei Tan

Abstract

Adductor canal block (ACB) is hypothesised to provide superior analgesia to femoral nerve block (FNB) for total knee arthroplasty (TKA) while preserving quadriceps strength. 30 patients undergoing TKA were randomised to receive either ACB or FNB. Baseline tests of quadriceps strength were performed. Ultrasound-guided blocks with 30 mL of 0.5% ropivacaine were administered before induction of general anaesthesia. Patient-controlled analgesia (morphine) was prescribed for postoperative analgesia. The primary outcome of this prospective, double-blinded, randomised controlled trial was morphine consumption (mean ± standard deviation) in the first 24 hours. Secondary outcomes were pain scores using a numeric rating scale (median and interquartile range [IQR]), quadriceps strength (% of baseline) and functional outcomes at 24 hours and 48 hours postoperatively. There was no statistically significant difference in morphine consumption at 24 hours between the ACB and FNB groups (21 ± 11 mg vs. 20 ± 12 mg; p = 0.85). No statistically significant differences were observed between the ACB and FNB groups in pain scores at 24 hours (at rest: 0 [IQR 0-2] vs. 0 [IQR 0-2]; on movement: 5 [IQR 4-8] vs. 5 [IQR 3-8]) and quadriceps strength (24 h...Continue Reading

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Citations

Nov 27, 2019·The Journal of Bone and Joint Surgery. American Volume·Michael J Taunton
Apr 19, 2019·Singapore Medical Journal·Tong Khee Tan
Feb 20, 2021·Pain Research & Management : the Journal of the Canadian Pain Society = Journal De La Société Canadienne Pour Le Traitement De La Douleur·Seung Cheol LeeSang Yoong Park
Mar 15, 2020·Heart & Lung : the Journal of Critical Care·Francisco Martín-RodríguezMiguel A Castro-Villamor
Apr 7, 2021·Journal of Clinical Anesthesia·Lu QinShishun Zhao

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