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Reimplantation after Periprosthetic Joint Infection: The Role of Microbiology

Virginia Suardi1, Nicola Logoluso1, Filippo Maria Anghilieri2

  • 1Department of Reconstructive Surgery of Osteo-Articular Infections, IRCCS Istituto Ortopedico Galeazzi, 20100 Milan, Italy.

Antibiotics (Basel, Switzerland)
|October 27, 2022
PubMed

Insights

In periprosthetic joint infections (PJI), positive cultures during reimplantation surgery did not correlate with treatment failure. However, multiple positive cultures may indicate a higher risk of subsequent implant failure.

Area of Science:

  • Orthopedics
  • Infectious Diseases
  • Microbiology

Background:

  • Periprosthetic joint infection (PJI) is a serious complication following joint replacement surgery.
  • Determining infection resolution before reimplantation is critical for successful treatment outcomes.

Purpose of the Study:

  • To investigate the correlation between intraoperative culture results at reimplantation and treatment failure rates in patients with hip and knee PJI.
  • To clarify the clinical significance of positive cultures obtained during two-stage exchange arthroplasty for PJI.

Main Methods:

  • Retrospective review of 84 patients undergoing two-stage exchange arthroplasty for hip or knee PJI.
  • Quantitative and qualitative analysis of intraoperative culture results at the time of reimplantation.

Main Results:

  • No statistically significant correlation was found between a single positive intraoperative culture and increased risk of treatment failure.
  • A trend towards higher treatment failure rates was observed in patients with two or more positive cultures, though not statistically significant.

Conclusions:

  • Intraoperative cultures at reimplantation for PJI may not definitively predict treatment success.
  • Positive cultures, especially multiple positive results, might suggest an elevated risk for future implant failure, warranting further investigation.
Keywords:
cultural testmicrobiologyperiprosthetic joint infection (PJI)reimplantationtwo-stage revision

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