Journal
ANTIBIOTICS-BASEL
Volume 10, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/antibiotics10030330
Keywords
knee; total knee arthroplasty; infection; intra-articular injection
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There is no significant difference in the incidence of PJI between patients who received prior intra-articular injections and others, with male gender being the only significant risk factor for PJI. The use of intra-articular injections remains a valid therapeutic option in managing knee osteoarthritis, and the possibility of TKA can still be considered.
Periprosthetic joint infections (PJI) occur in 0.5 to 2.8% of total knee arthroplasties (TKA) and expose them to an increase of morbidity and mortality. TKA are mainly performed after failure of non-surgical management of knee osteoarthritis, which frequently includes intra-articular injections of corticosteroids or hyaluronic acid. Concerning the potential impact of intra-articular injections on TKA infection, literature provides a low level of evidence because of the retrospective design of the studies and their contradictory results. In this prospective cohort study, we included patients after a total knee arthroplasty, at the time of their admission in a rehabilitation center, and we excluded patients with any prior knee surgery. 304 patients were included. Mean follow-up was 24.9 months, and incidence proportion of PJI was 2.6%. After multivariate logistic regression, male was the only significant risk factor of PJI (OR = 19.6; p = 0.006). The incidence of PJI did not differ between patients who received prior intra-articular injections and others, especially regarding injections in the last 6 months before surgery. The use of intra-articular injection remains a valid therapeutic option in the management of knee osteoarthritis, and a TKA could still be discussed.
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