TY - JOUR
T1 - Diagnostic accuracy of interleukin-6 and procalcitonin in patients with periprosthetic joint infection
T2 - a systematic review and meta-analysis
AU - Yoon, Jung Ro
AU - Yang, Se Hyun
AU - Shin, Young Soo
N1 - Publisher Copyright:
© 2018, SICOT aisbl.
PY - 2018/6/1
Y1 - 2018/6/1
N2 - Purpose: Many studies have found associations between laboratory biomarkers and periprosthetic joint infection (PJI), but it remains unclear whether these biomarkers are clinically useful in ruling out PJI. This meta-analysis compared the performance of interleukin-6 (IL-6) versus procalcitonin (PCT) for the diagnosis of PJI. Methods: In this meta-analysis, we reviewed studies that evaluated IL-6 or/and PCT as a diagnostic biomarker for PJI and provided sufficient data to permit sensitivity and specificity analyses for each test. The major databases MEDLINE, EMBASE, the Cochrane Library, Web of Science, and SCOPUS were searched for appropriate studies from the earliest available date of indexing through February 28, 2017. No restrictions were placed on language of publication. Results: We identified 18 studies encompassing a total of 1,835 subjects; 16 studies reported on IL-6 and 6 studies reported on PCT. The area under the curve (AUC) was 0.93 (95% CI, 0.91–0.95) for IL-6 and 0.83 (95% CI, 0.79–0.86) for PCT. The pooled sensitivity was 0.83 (95% CI, 0.74–0.89) for IL-6 and 0.58 (95% CI, 0.31–0.81) for PCT. The pooled specificity was 0.91 (95% CI, 0.84–0.95) for IL-6 and 0.95 (95% CI, 0.63–1.00) for PCT. Both the IL-6 and PCT tests had a high positive likelihood ratio (LR); 9.3 (95% CI, 5.3–16.2) and 12.4 (95% CI, 1.7–89.8), respectively, making them excellent rule-in tests for the diagnosis of PJI. The pooled negative LR for IL-6 was 0.19 (95% CI, 0.12–0.29), making it suitable as a rule-out test, whereas the pooled negative LR for PCT was 0.44 (95% CI, 0.25–0.78), making it unsuitable as a rule-out diagnostic tool. Conclusions: Based on the results of the present meta-analysis, IL-6 has higher diagnostic value than PCT for the diagnosis of PJI. Moreover, the specificity of the IL-6 test is higher than its sensitivity. Conversely, PCT is not recommended for use as a rule-out diagnostic tool.
AB - Purpose: Many studies have found associations between laboratory biomarkers and periprosthetic joint infection (PJI), but it remains unclear whether these biomarkers are clinically useful in ruling out PJI. This meta-analysis compared the performance of interleukin-6 (IL-6) versus procalcitonin (PCT) for the diagnosis of PJI. Methods: In this meta-analysis, we reviewed studies that evaluated IL-6 or/and PCT as a diagnostic biomarker for PJI and provided sufficient data to permit sensitivity and specificity analyses for each test. The major databases MEDLINE, EMBASE, the Cochrane Library, Web of Science, and SCOPUS were searched for appropriate studies from the earliest available date of indexing through February 28, 2017. No restrictions were placed on language of publication. Results: We identified 18 studies encompassing a total of 1,835 subjects; 16 studies reported on IL-6 and 6 studies reported on PCT. The area under the curve (AUC) was 0.93 (95% CI, 0.91–0.95) for IL-6 and 0.83 (95% CI, 0.79–0.86) for PCT. The pooled sensitivity was 0.83 (95% CI, 0.74–0.89) for IL-6 and 0.58 (95% CI, 0.31–0.81) for PCT. The pooled specificity was 0.91 (95% CI, 0.84–0.95) for IL-6 and 0.95 (95% CI, 0.63–1.00) for PCT. Both the IL-6 and PCT tests had a high positive likelihood ratio (LR); 9.3 (95% CI, 5.3–16.2) and 12.4 (95% CI, 1.7–89.8), respectively, making them excellent rule-in tests for the diagnosis of PJI. The pooled negative LR for IL-6 was 0.19 (95% CI, 0.12–0.29), making it suitable as a rule-out test, whereas the pooled negative LR for PCT was 0.44 (95% CI, 0.25–0.78), making it unsuitable as a rule-out diagnostic tool. Conclusions: Based on the results of the present meta-analysis, IL-6 has higher diagnostic value than PCT for the diagnosis of PJI. Moreover, the specificity of the IL-6 test is higher than its sensitivity. Conversely, PCT is not recommended for use as a rule-out diagnostic tool.
KW - Diagnosis
KW - Interleukin-6
KW - Meta-analysis
KW - Procalcitonin
UR - http://www.scopus.com/inward/record.url?scp=85039844520&partnerID=8YFLogxK
U2 - 10.1007/s00264-017-3744-3
DO - 10.1007/s00264-017-3744-3
M3 - Article
C2 - 29294147
AN - SCOPUS:85039844520
SN - 0341-2695
VL - 42
SP - 1213
EP - 1226
JO - International Orthopaedics
JF - International Orthopaedics
IS - 6
ER -