PMID- 38450292 OWN - NLM STAT- MEDLINE DCOM- 20240308 LR - 20240308 IS - 1742-1241 (Electronic) IS - 1368-5031 (Print) IS - 1368-5031 (Linking) VI - 2024 DP - 2024 TI - Cocktail of Ropivacaine, Morphine, and Diprospan Reduces Pain and Prolongs Analgesic Effects after Total Knee Arthroplasty: A Prospective Randomized Controlled Trial. PG - 3697846 LID - 10.1155/2024/3697846 [doi] LID - 3697846 AB - BACKGROUND: Local infiltration analgesia (LIA) provides postoperative analgesia for total knee arthroplasty (TKA). The purpose of this study was to evaluate the analgesic effect of a cocktail of ropivacaine, morphine, and Diprospan for TKA. METHODS: A total of 100 patients from September 2018 to February 2019 were randomized into 2 groups. Group A (control group, 50 patients) received LIA of ropivacaine alone (80 ml, 0.25% ropivacaine). Group B (LIA group, 50 patients) received an LIA cocktail of ropivacaine, morphine, and Diprospan (80 ml, 0.25% ropivacaine, 0.125 mg/ml morphine, and 62.5 mug/ml compound betamethasone). The primary outcomes were the levels of inflammatory markers C-reactive protein (CRP) and interleukin-6 (IL-6), pain visual analog scale (VAS) scores, opioid consumption, range of motion (ROM), functional tests, and sleeping quality. The secondary outcomes were adverse events, satisfaction rates, HSS scores, and SF-12 scores. The longest follow-up was 2 years. RESULTS: The two groups showed no differences in terms of characteristics (P > 0.05). Group B had lower resting VAS pain scores (1.54 +/- 0.60, 95% CI = 1.37 to 1.70 vs. 2.00 +/- 0.63, 95% CI = 2.05 to 2.34) and active VAS pain scores (2.64 +/- 0.62, 95% CI = 2.46 to 2.81 vs. 3.16 +/- 0.75, 95% CI = 2.95 to 3.36) within 48 h postoperatively than Group A (P < 0.001), while none of the pain differences exceeded the minimal clinically important difference (MCID). Group B had significantly lower CRP levels (59.49 +/- 13.01, 95% CI = 55.88 to 63.09 vs. 65.95 +/- 14.41, 95% CI = 61.95 to 69.94) and IL-6 levels (44.11 +/- 13.67, 95% CI = 40.32 to 47.89 vs. 60.72 +/- 15.49, 95% CI = 56.42 to 65.01), lower opioid consumption (7.60 +/- 11.10, 95% CI = 4.52 to 10.67 vs. 13.80 +/- 14.68, 95% CI = 9.73 to 17.86), better ROM (110.20 +/- 10.46, 95% CI = 107.30 to 113.09 vs. 105.30 +/- 10.02, 95% CI = 102.52 to 108.07), better sleep quality (3.40 +/- 1.03, 95% CI = 3.11 to 3.68 vs. 4.20 +/- 1.06, 95% CI = 3.90 to 4.49), and higher satisfaction rates than Group A within 48 h postoperatively (P < 0.05). Adverse events, HSS scores, and SF-12 scores were not significantly different within 2 years postoperatively. CONCLUSIONS: A cocktail of ropivacaine, morphine, and Diprospan prolongs the analgesic effect up to 48 h postoperatively. Although the small statistical benefit may not result in MCID, the LIA cocktail still reduces opioid consumption, results in better sleeping quality and faster rehabilitation, and does not increase adverse events. Therefore, cocktails of ropivacaine, morphine, and Diprospan have good application value for pain control in TKA. This trial is registered with ChiCTR1800018372. CI - Copyright (c) 2024 Zhenyu Luo et al. FAU - Luo, Zhenyu AU - Luo Z AUID- ORCID: 0000-0001-6425-1544 AD - Department of Orthopedics, Institute of Orthopedic Research, West China Hospital, West China School of Medicine, Sichuan University, Chengdu 610041, China. FAU - Zeng, Weinan AU - Zeng W AUID- ORCID: 0000-0002-3952-1968 AD - Department of Orthopedics, Institute of Orthopedic Research, West China Hospital, West China School of Medicine, Sichuan University, Chengdu 610041, China. FAU - Chen, Xi AU - Chen X AUID- ORCID: 0000-0002-5166-0872 AD - Department of Operative Dentistry and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China. FAU - Xiao, Qiang AU - Xiao Q AUID- ORCID: 0000-0002-3018-1784 AD - Department of Orthopedics, Institute of Orthopedic Research, West China Hospital, West China School of Medicine, Sichuan University, Chengdu 610041, China. FAU - Chen, Anjing AU - Chen A AUID- ORCID: 0000-0003-3139-4009 AD - Department of Orthopedics, Institute of Orthopedic Research, West China Hospital, West China School of Medicine, Sichuan University, Chengdu 610041, China. FAU - Chen, Jiali AU - Chen J AUID- ORCID: 0000-0002-1227-4952 AD - Department of Orthopedics, Institute of Orthopedic Research, West China Hospital, West China School of Medicine, Sichuan University, Chengdu 610041, China. AD - Department of Orthopedics, West China Hospital, West China School of Nursing, Sichuan University, Chengdu 610041, China. FAU - Wang, Haoyang AU - Wang H AUID- ORCID: 0000-0003-3801-1226 AD - Department of Orthopedics, Institute of Orthopedic Research, West China Hospital, West China School of Medicine, Sichuan University, Chengdu 610041, China. FAU - Zhou, Zongke AU - Zhou Z AUID- ORCID: 0000-0002-9037-4756 AD - Department of Orthopedics, Institute of Orthopedic Research, West China Hospital, West China School of Medicine, Sichuan University, Chengdu 610041, China. LA - eng PT - Journal Article PT - Randomized Controlled Trial DEP - 20240228 PL - India TA - Int J Clin Pract JT - International journal of clinical practice JID - 9712381 RN - 7IO5LYA57N (Ropivacaine) RN - 76I7G6D29C (Morphine) RN - 0 (betamethasone dipropionate, betamethasone sodium phosphate drug combination) RN - 0 (Analgesics, Opioid) RN - 0 (Interleukin-6) RN - 9842X06Q6M (Betamethasone) RN - 0 (Drug Combinations) SB - IM MH - Humans MH - Ropivacaine/therapeutic use MH - *Arthroplasty, Replacement, Knee/adverse effects MH - Morphine/therapeutic use MH - Analgesics, Opioid/therapeutic use MH - Interleukin-6 MH - Prospective Studies MH - Pain MH - Betamethasone/*analogs & derivatives MH - Drug Combinations PMC - PMC10917473 COIS- The authors declare that they have no conflicts of interest. EDAT- 2024/03/07 06:43 MHDA- 2024/03/08 06:42 PMCR- 2024/02/28 CRDT- 2024/03/07 04:18 PHST- 2022/10/29 00:00 [received] PHST- 2023/11/26 00:00 [revised] PHST- 2024/01/17 00:00 [accepted] PHST- 2024/03/08 06:42 [medline] PHST- 2024/03/07 06:43 [pubmed] PHST- 2024/03/07 04:18 [entrez] PHST- 2024/02/28 00:00 [pmc-release] AID - 10.1155/2024/3697846 [doi] PST - epublish SO - Int J Clin Pract. 2024 Feb 28;2024:3697846. doi: 10.1155/2024/3697846. eCollection 2024.