• Yi-Ting Lei, Bin Xu, Xiao-Wei Xie, Jin-Wei Xie, Qiang Huang, and Fu-Xing Pei.
• Department of Orthopaedics, West China Hospital, Sichuan University, 37# WainanGuoxue Road, Chengdu, 610041, People's Republic of China.
• Int Orthop. 2018 Mar 1; 42 (3): 499-505.

PurposeTo evalute the efficacy and safety of two low-dose peri-operative dexamethasone on pain and recovery following total hip arthroplasty (THA).MethodsOne hundred ten patients received two-dose of 10 mg IV-dexamethasone (group dexa) or IV-isotonic saline (group placebo). The level of C-reactive protein (CRP) and interleukin-6 (IL-6), pain at rest and during mobilization, incidence of post-operative nausea and vomiting (PONV), intensity of nausea, post-operative fatigue, consumption of analgesic and antiemetic rescue, range of motion (ROM), post-operative length of stay (post-operative LOS), wound problems and complications were recorded and compared.ResultsThe level of inflammation markers (CRP, IL-6) in group dexa was lower than group placebo at 24, 48, 72 hours post-operatively. Dynamic pain VAS score at 24 hours was lower in group dexa (P = 0.002), however, there was no significant effect on pain at rest. In group dexa, patients had a lower incidence of PONV (P = 0.003), as well as a lower VAS score of nausea (P = 0.044). The post-operative fatigue (P < 0.001) was relieved and the consumption of analgesic and antiemetic rescues were reduced. Furthermore, patients had better maximum hip flexion (P < 0.001) and abduction (P = 0.017), with shorter post-operative LOS (P = 0.006). There is no difference between groups in wound problems. No surgical site infection or gastrointestinal haemorrhage was detected in both groups.ConclusionsThe administration of two low-dose peri-operative dexamethasone can effectively reduce the post-operative level of CRP and IL-6, provide additional pain and nausea control, ameliorate post-operative fatigue, enhance mobility, and shorten post-operative LOS following THA, without increasing the risk of infection and gastrointestinal hemorrhage.Level Of EvidenceI.

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