RESUMO
BACKGROUND: Intraoperative dexamethasone can reduce postoperative pain and nausea following total knee (TKA) and total hip arthroplasty (THA). To the best of our knowledge, no study to date has been adequately powered to detect the risk of periprosthetic joint infection (PJI) from early dexamethasone exposure. This study aimed to assess PJI rates and complications in patients undergoing primary elective TKA and THA who received intraoperative dexamethasone. METHODS: A national database was used to identify adults undergoing primary elective TKA and THA between 2015 and 2020. Patients who received intraoperative dexamethasone and those who did not were identified. The primary endpoint was 90-day risk of infectious complications. Secondary end points included thromboembolic, pulmonary, renal, and wound complications. Multivariate analyses were performed to assess the risk of all endpoints between cohorts. Between 2015 and 2020, 1,322,025 patients underwent primary elective TJA, of which 857,496 (64.1%) underwent TKA and 474,707 (35.9%) underwent TKA. RESULTS: In patients who underwent TKA, dexamethasone was associated with lower risk of PJI (adjusted odds ratio: 0.87, 95% CI: 0.82-0.93, P < .001) as well as other secondary endpoints such as pulmonary embolism, deep vein thrombosis, and acute kidney injury. In patients who underwent THA, dexamethasone was associated with a lower risk of PJI (adjusted odds ratio: 0.80, 95% CI: 0.73-0.86, P < .001) as well as other secondary endpoints such as pulmonary embolism, deep vein thrombosis, acute kidney injury, and pneumonia. CONCLUSION: Intraoperative dexamethasone was not associated with increased risk of infectious complications. The data presented here provide evidence in support of intraoperative dexamethasone utilization during primary TKA or THA.