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Table 4 Comparison of synovial fluid PCR with synovial fluid biomarkers using the MSIS definition based meta-analysis results

From: Meta-analysis of synovial fluid polymerase chain reaction for diagnosing periprosthetic hip and knee infection

References

Test

Location

Number of studies

Sensitivity (95% CI)

Specificity (95% CI)

DOR (95% CI)

AUC

[26]

Synovial fluid alpha-defensin

Hip, knee, shoulder

16

0.87 (0.83–0.90)

0.97 (0.96–0.98)

158.18 (74.26–336.91)

0.9685

[26]

Synovial fluid LE

Hip, knee, shoulder

12

0.87 (0.84–0.90)

0.96 (0.95–0.97)

170.09 (97.63–296.32)

0.9818

[27]

Synovial fluid IL-6

Hip, knee, shoulder

8

0.91 (0.82–0.96)

0.90 (0.84–0.95)

101 (28–358)

0.96

[28]

Synovial fluid CRP

Hip, knee

6

0.92 (0.86–0.96)

0.90 (0.87–0.93)

101.40 (48.07–213.93)

0.9663

[29]

Synovial fluid WBC count

Hip, knee

11

0.900 (0.872–0.922)

0.898 (0.814–0.947)

84.4 (40.3–157)

0.910

[29]

Synovial fluid PMN

Hip, knee

11

0.906 (0.870–0.933)

0.861 (0.808–0.901)

62.8 (32.7–109)

0.940

[30]

Synovial fluid culture

Hip, knee

34

0.72 (0.65–0.78)

0.95 (0.93–0.97)

52 (31–86)

0.94

Current study

Synovial fluid PCR

Hip, knee

11

0.70 (0.66–0.74)

0.92 (0.90–0.93)

37.4 (17.77–78.74)

0.9252

  1. CI, confidence interval; AUC, Area under the curve; DOR, Diagnostic odds ratio; CRP, C-reactive protein; IL-6, Interleukin-6; LE, Leukocyte esterase; PCR, Polymerase chain reaction; PMN, Polymorphonuclear leukocytes; WBC, White blood cell