Administration with corticosteroid relieving pain following total knee arthroplasty: A meta-analysis.

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Background:This meta-analysis compares the effectiveness of corticosteroid in relieving pain and inflammation in total knee arthroplasty (TKA) patients.Method:Randomized controlled trials in PubMed (1996 to March 2020), Embase (1996 to March 2020), and the Cochrane Library (CENTRAL, March 2020) compared corticosteroid and placebo in pain in TKA patients were identified by a software and manual searching. The risk of bias and clinical relevance of the included studies were assessed. Sensitivity analysis was performed by omitting each study in turn. The major outcomes of the studies were analyzed by the Stata 12.0.Results:13 randomized controlled trials that involved 193 patients were included in the present meta-analysis. The results of the study revealed a significantly lower visual analog scale (VAS) score of pain at rest in the corticosteroid group (12 hours: weighted mean difference (WMD)=−1.35, P = .005; 24 hours: WMD=−1.11, P = .000; 48 hours: WMD=−0.31, P = .000; 72 hours: WMD = −0.30, P = .000). And Postoperative VAS scores during mobilization at 12 hours and 24 hours were significantly lower at corticosteroid group when compared with control group (12 hours: WMD = −0.81, P = 0.000; 24 hours: WMD = −1.66, P = .018). Meta-analyses show that administration of corticosteroid can reduce the length of hospital stay, incidence nausea and the C-reactive protein level. While no significant difference was observed in the VAS scores during mobilization at 48 hours and 72 hours and total morphine consumption (P > .05).Conclusions:Compared to the control group, intraoperative corticosteroid was benefit to the pain management in TKA. However, more high-quality studies are still warranted to further validate our findings, considering there are several limitations in this meta-analysis.