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. 2024 Aug;39(8):2100-2103.
doi: 10.1016/j.arth.2024.02.063. Epub 2024 Feb 27.

Role of Preoperative Intra-Articular Corticosteroid Injections on Periprosthetic Joint Infection in Total Hip Arthroplasty and Its Association With Preoperative Timing: A Single-Center Series of 5,909 Hips

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Role of Preoperative Intra-Articular Corticosteroid Injections on Periprosthetic Joint Infection in Total Hip Arthroplasty and Its Association With Preoperative Timing: A Single-Center Series of 5,909 Hips

Ante Prkić et al. J Arthroplasty. 2024 Aug.

Abstract

Background: Preoperative intra-articular corticosteroid injections to the hip joint increase the risk of periprosthetic joint infection (PJI) during primary total hip arthroplasty (THA). This study aimed to determine the relationship between preoperative timing of intra-articular corticosteroid injections and PJI risk following THA using data from a single-center hospital.

Methods: This single-center, retrospective cohort study included patients who underwent a THA between 2014 and 2020. Medical records were checked for intra-articular corticosteroid injections and PJI within 1 year of surgery. Patients were categorized into groups based on whether they received "no injection" or "injection 0 to 3 months," "3 to 6 months," and "> 6 months prior to THA." Hazard ratios (HRs) for these groups were calculated using multivariate Cox regression analysis, correcting for potential confounders, and presented with 95% confidence intervals [95% CIs].

Results: In total, 4,507 patients (5,909 THAs) were identified. A total of 1,581 patients (27%) received an injection prior to THA. Without considering the timing factor, no increased risk for PJI following an intra-articular injection was noted (P = .19). Comparing the specified groups using multivariate analysis, corticosteroid injection within 3 months of THA showed an increased risk of PJI (HR 2.63, 95% CI 1.18 to 5.87, P = .018), but this effect was not observed for the "injection 3 to 6 months" group (HR 1.51, 95% CI 0.74 to 3.08, P = .264).

Conclusions: Corticosteroid injections administered up to 3 months prior to THA increased the risk of PJI within 1 year after THA, with an HR of 2.63; however, injections between 3 and 6 months before surgery did not have a significantly higher infection rate.

Keywords: hip arthroplasty; infection; intra-articular corticosteroid injection; risk; timing.

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