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April 19, 2026Hong Kong Medical Journal0 citationsOpen Access

Has the bacteriology of periprosthetic joint infection after total knee arthroplasty changed over time? A retrospective cohort study of 2171 patients

JKJR KhooQueen Mary HospitalPCPK ChanUniversity of Hong KongJLJ LEUNGUniversity of Hong Kong

Key Points

  • This research investigates changes in the bacteriology of periprosthetic joint infection (PJI) over time in patients undergoing total knee arthroplasty.
  • Retrospective cohort study design
  • Analysis of 2171 patients undergoing total knee arthroplasty
  • Comparison of infection rates across two study periods
  • Assessment of microbiological patterns of PJI
  • PJI incidence decreased from 1.34% to 0.64% across study periods
  • Minimal differences in microbiological patterns of PJI were noted between cohorts

Abstract

The incidence of PJI decreased significantly from 1.34% to 0.64% between the two study periods, suggesting the effectiveness of infection-reduction measures implemented at our institution. Minimal differences were observed in the microbiological patterns of PJI between the cohorts.

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Cite This Study

Khoo et al. (2026) studied this question.

synapsesocial.com/papers/69e470e9010ef96374d8dabbhttps://doi.org/10.12809/hkmj2310702
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