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Incidence, Secular Trends, and Outcomes of Prosthetic Joint Infection: A Population-Based Study, Olmsted County, Minnesota, 1969–2007

  • Geoffrey Tsaras (a1), Douglas R. Osmon (a1), Tad Mabry (a2), Brian Lahr (a3), Jennifer St. Sauveur (a4) (a5), Barbara Yawn (a5) (a6), Robert Kurland (a7) and Elie F. Berbari (a1)...
Abstract
Context.

The epidemiology of prosthetic joint infection (PJI) in a population-based cohort has not been studied in the United States.

Objectives.

To provide an accurate assessment of the true incidence, secular trends, clinical manifestations, microbiology, and treatment outcomes of PJI in a population-based cohort.

Design.

Historical cohort study.

Setting.

Olmsted County, Minnesota.

Participants.

Residents who underwent total knee arthroplasty (TKA) or total hip arthroplasty (THA) between January 1, 1969, and December 31, 2007.

Methods.

Incidence rates and trends in PJI were assessed using the Kaplan-Meier method and log-rank test, as were treatment outcomes among PJI case patients.

Results.

A total of 7,375 THAs or TKAs were implanted in residents of Olmsted County during the study period. Seventy-five discrete joints in 70 individuals developed PJI, during a mean ± SD follow-up of 6.8 ± 6.1 years. The cumulative incidence of PJI was 0.5%, 0.8%, and 1.4% after 1, 5, and 10 years after arthroplasty, respectively. Overall, the rate of survival free of clinical failure after treatment of PJI was 76.8% (95% confidence interval [CI], 64.3–85.2) and 65.2% (95% CI, 33.1–76.2) at 3 and 5 years, respectively. The incidence and treatment outcomes did not significantly differ by decade of implantation, patient age at implantation, gender, or joint location.

Conclusions.

The incidence of PJI is relatively low in a population-based cohort and is a function of age of the prosthesis. Incidence trends and outcomes have not significantly changed over the past 40 years.

Copyright
Corresponding author
Department of Medicine, University of Illinois College of Medicine, 129 Phelps Avenue #508, Rockford, IL 61108 (gtsaras@uic.edu)
References
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Infection Control & Hospital Epidemiology
  • ISSN: 0899-823X
  • EISSN: 1559-6834
  • URL: /core/journals/infection-control-and-hospital-epidemiology
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