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The application of sonication in diagnosis of periprosthetic joint infection
1Department of Orthopaedic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, 510515, China.
Abstract:
Periprosthetic joint infection (PJI) is a catastrophic complication after total joint arthroplasty. It has always been difficult to diagnose PJI, which is characterised by existence of biofilm around the implants. The application of sonication has proven advantageous for pathogen detection. This meta-analysis of clinical trials was performed to evaluate the diagnostic value of sonication and to compare it with traditional bacterial culture. We assessed 16 studies that evaluated sonication fluid cultures (SFC) for the diagnosis of PJI. It was shown that sonication may be of great value in PJI diagnosis, with a pooled sensitivity of 0.79 (95 % confidence interval [CI] = 0.76-0.81), specificity of 0.95 (CI = 0.94-0.96), DOR of 71.20 (CI = 31.08-163.10), PLR of 15.25 (CI = 6.44-36.15), and NLR of 0.23 (CI = 0.18-0.30). The AUC value of the SROC was 0.90. The results of this meta-analysis showed that culture of fluid after sonication was of great value for PJI diagnosis. Sonication was more sensitive than traditional tissue culture with lower specificity, especially for patients previously taking antibiotics.
Insights
Sonication fluid cultures (SFC) significantly improve diagnosing periprosthetic joint infection (PJI) by detecting pathogens in biofilms. This method offers higher sensitivity than traditional cultures, aiding in PJI diagnosis, especially after antibiotic use.
Area of Science:
- Orthopedics
- Infectious Diseases
- Diagnostic Microbiology
Background:
- Periprosthetic joint infection (PJI) is a severe complication following total joint arthroplasty.
- Diagnosing PJI is challenging due to the presence of bacterial biofilms on implants.
- Traditional diagnostic methods often struggle with sensitivity, particularly in patients with prior antibiotic exposure.
Purpose of the Study:
- To evaluate the diagnostic accuracy of sonication fluid cultures (SFC) for PJI.
- To compare the performance of SFC against traditional bacterial culture methods.
- To assess the utility of sonication in pathogen detection within biofilms.
Main Methods:
- A meta-analysis was conducted, including 16 clinical trials.
- Studies evaluated the use of sonication fluid cultures (SFC) for PJI diagnosis.
- Diagnostic performance metrics including sensitivity, specificity, DOR, PLR, NLR, and SROC AUC were analyzed.
Main Results:
- Sonication fluid cultures demonstrated high diagnostic value for PJI.
- Pooled sensitivity was 0.79 (95% CI: 0.76-0.81) and pooled specificity was 0.95 (95% CI: 0.94-0.96).
- The SROC AUC was 0.90, indicating excellent overall diagnostic performance.
Conclusions:
- Sonication fluid culture is a valuable tool for diagnosing periprosthetic joint infection.
- SFC exhibits superior sensitivity compared to traditional tissue cultures, with slightly lower specificity.
- This method is particularly beneficial for identifying PJI in patients who have received prior antibiotic treatment.
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