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Late summer is a risk factor for periprosthetic joint infection after total joint arthroplasty: A retrospective

Ze Yang1, Weifeng Ji2, Yongliang Xia2

  • 1The First Clinical College of Zhejiang Traditional Chinese Medical University, Hangzhou, China.

Medicine
|March 10, 2023
PubMed

Insights

Summer, particularly late summer, is a significant risk factor for periprosthetic joint infection (PJI) following total joint arthroplasty (TJA). Enhanced preoperative disinfection is recommended during this period to mitigate infection risk.

Area of Science:

  • Orthopedic Surgery
  • Infectious Disease Epidemiology
  • Traditional Chinese Medicine

Background:

  • Periprosthetic joint infection (PJI) is a serious complication after total joint arthroplasty (TJA).
  • Seasonal variations may influence the incidence of PJI, but this requires further investigation.
  • Traditional Chinese Medicine offers theoretical frameworks for understanding environmental influences on health.

Purpose of the Study:

  • To determine if season is a risk factor for PJI after TJA.
  • To explore potential explanations for seasonal PJI risk using traditional Chinese medicine principles.

Main Methods:

  • Retrospective cohort study including patients with PJI within one month of TJA.
  • Statistical analysis including Chi-squared and t-tests to compare baseline characteristics.
  • Logistic regression to assess the association between season and PJI occurrence.

Main Results:

  • PJI incidence was significantly higher in summer compared to winter for both total knee and total hip arthroplasty.
  • Summer was identified as an independent risk factor for PJI (OR = 4.373).
  • Late summer showed a disproportionately high concentration of PJI cases (80.49%), establishing it as an independent risk factor.

Conclusions:

  • The incidence of PJI after TJA is significantly higher during late summer.
  • Season, specifically late summer, is an independent risk factor for PJI.
  • Increased preoperative disinfection protocols are advised during late summer to reduce PJI rates.

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