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Meta-analysis of sonication prosthetic fluid PCR for diagnosing periprosthetic joint infection

Kan Liu1,2, Jun Fu1, Baozhan Yu1

  • 1Department of Orthopedics, General Hospital of Chinese People's Liberation Army, Beijing, China.

Plos One
|April 28, 2018
PubMed

Insights

Polymerase chain reaction (PCR) of sonication fluid is a reliable diagnostic tool for periprosthetic joint infection (PJI). This method offers high accuracy, aiding in the effective diagnosis of this serious complication after joint replacement surgery.

Area of Science:

  • Orthopedics
  • Infectious Diseases
  • Molecular Diagnostics

Background:

  • Periprosthetic joint infection (PJI) is a severe complication following total joint arthroplasty.
  • Current diagnostic methods for PJI face technical limitations and challenges.
  • The diagnostic value of polymerase chain reaction (PCR) on sonication fluid for PJI remains under investigation.

Purpose of the Study:

  • To evaluate the diagnostic accuracy of PCR assays performed on sonication fluid for periprosthetic joint infection (PJI).
  • To determine the pooled sensitivity, specificity, and other diagnostic performance metrics of sonication fluid PCR in PJI diagnosis.

Main Methods:

  • A meta-analysis was conducted, synthesizing data from 9 studies that assessed PCR assays of sonication fluid for PJI diagnosis.
  • Key performance indicators including pooled sensitivity, specificity, positive and negative likelihood ratios, and diagnostic odds ratio were calculated.
  • Summary receiver operating characteristic (SROC) curve analysis was used to assess overall diagnostic performance.

Main Results:

  • The pooled sensitivity for sonication fluid PCR in PJI diagnosis was 0.75 (95% CI, 0.71 to 0.81) and pooled specificity was 0.96 (95% CI, 0.94 to 0.97).
  • The diagnostic odds ratio (DOR) was 86.97 (CI, 37.08 to 203.97), with an AUC of 0.9244, indicating high diagnostic accuracy.
  • Subgroup analyses suggested that multiplex PCR assays may further enhance sensitivity and specificity.

Conclusions:

  • PCR analysis of sonication fluid is a reliable and valuable method for diagnosing periprosthetic joint infection (PJI).
  • The findings support the integration of sonication fluid PCR into the diagnostic workup for PJI.
  • Multiplex PCR may offer improved diagnostic performance for PJI.

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