Diagnostic Accuracy of the Alpha-Defensin Test for Periprosthetic Joint Infection in Patients With Inflammatory Diseases

2019 ◽  
Vol 34 (8) ◽  
pp. 1767-1771 ◽  
Author(s):  
Yushi Miyamae ◽  
Jaiben George ◽  
Alison K. Klika ◽  
Wael K. Barsoum ◽  
Carlos A. Higuera
Keyword(s):  
Diagnostic Accuracy ◽  
Periprosthetic Joint Infection ◽  
Inflammatory Diseases ◽  
Joint Infection

scholarly journals Nuclear imaging does not have clear added value in patients with low a priori chance of periprosthetic joint infection. A retrospective single-center experience

2022 ◽  
Vol 7 (1) ◽  
pp. 1-9
Author(s):  
Karsten D. Ottink ◽  
Stefan J. Gelderman ◽  
Marjan Wouthuyzen-Bakker ◽  
Joris J. W. Ploegmakers ◽  
Andor W. J. M. Glaudemans ◽  
...  
Keyword(s):  
Diagnostic Accuracy ◽  
Revision Surgery ◽  
Periprosthetic Joint Infection ◽  
Joint Infection ◽  
A Priori ◽  
Nuclear Imaging ◽  
Added Value ◽  
Low Grade ◽  
Predictive Values ◽  
Sensitivity Specificity

Abstract. Background: A low-grade periprosthetic joint infection (PJI) may present without specific symptoms, and its diagnosis remains a challenge. Three-phase bone scintigraphy (TPBS) and white blood cell (WBC) scintigraphy are incorporated into recently introduced diagnostic criteria for PJI, but their exact value in diagnosing low-grade PJI in patients with nonspecific symptoms remains unclear. Methods: In this retrospective study, we evaluated patients with a prosthetic joint of the hip or knee who underwent TPBS and/or WBC scintigraphy between 2009 and 2016 because of nonspecific symptoms. We reviewed and calculated diagnostic accuracy of the TPBS and/or WBC scintigraphy to diagnose or exclude PJI. PJI was defined based on multiple cultures obtained during revision surgery. In patients who did not undergo revision surgery, PJI was ruled out by clinical follow-up of at least 2 years absent of clinical signs of infection based on MSIS 2011 criteria. Results: A total of 373 patients were evaluated, including 340 TPBSs and 142 WBC scintigraphies. Thirteen patients (3.5 %) were diagnosed with a PJI. TPBS sensitivity, specificity, and positive and negative predictive values (PPV, NPV) were 71 %, 65 %, 8 % and 98 %, respectively. Thirty-five percent of TPBS showed increased uptake. Stratification for time intervals between the index arthroplasty and the onset of symptoms did not alter its diagnostic accuracy. WBC scintigraphy sensitivity, specificity, PPV and NPV were 30 %, 90 %, 25 % and 94 %, respectively. Conclusion: Nuclear imaging does not have clear added value in patients with low a priori chance of periprosthetic joint infection.

The role of D-dimer in periprosthetic joint infection: a systematic review and meta-analysis

Diagnosis ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Giovanni Balato ◽  
Cristiano De Franco ◽  
Fiamma Balboni ◽  
Vincenzo De Matteo ◽  
Tiziana Ascione ◽  
...  
Keyword(s):  
Diagnostic Accuracy ◽  
Blood Sample ◽  
Periprosthetic Joint Infection ◽  
Meta Analysis ◽  
Joint Infection ◽  
Negative Likelihood Ratio ◽  
Diagnostic Odds Ratio ◽  
Receiver Operating Curve ◽  
Sensitivity Specificity ◽  
D Dimer

Abstract Objectives The current literature on diagnosis of periprosthetic joint infection (PJI) provides controversial evidence on the diagnostic accuracy of D-dimer. Therefore, this critical literature search and meta-analysis was aimed to summarize the diagnostic accuracy of D-dimer for diagnosing PJI. Content We searched MEDLINE, Scopus, and Web of Science, for studies on D-dimer for diagnosing PJI, according to the PRISMA flowchart. QUADAS was used for assessing study quality. Sensitivity, specificity, positive (PLR) and negative likelihood ratio (NLR), and diagnostic odds ratio (DOR) were analyzed using bivariate diagnostic random-effects model. The area under the receiver-operating curve (AUC-ROC) was calculated. Subgroup analysis and univariate meta-regression were carried out for detecting potential sources of heterogeneity. Summary We included 12 articles, totaling 1,818 patients (539 with PJI). The pooled sensitivity and specificity of D-dimer for diagnosing PJI were 0.739 (95% CI: 0.616–0.833) and 0.785 (95% CI: 0.679–0.863). The pooled PLR, NLR, DOR were 3.359 (95% CI, 2.340–4.821), 0.295 (95% CI, 0.180–0.484), and 11.787 (95% CI, 5.785–24.018). The cumulative ROC plot displayed an AUC of 0.688 (95% CI, 0.663–0.713; p<0.001). No threshold effects could be observed. The type of blood sample was identified as possible source of heterogeneity for DOR (p=0.01). Outlook Evidence emerged from this meta-analysis suggests that D-dimer displays sufficient diagnostic accuracy to rule out PJI. The type of blood sample (plasma vs. serum) and the study design could influence the results in terms of DOR and sensitivity. However, further perspective studies would be needed to validate its potential diagnostic usefulness.

scholarly journals Alpha-Defensin versus Leukocyte Esterase in Periprosthetic Joint Infection: An Updated Meta-Analysis

2020 ◽  
Vol 2020 ◽  
pp. 1-14
Author(s):  
Zhizhuo Li ◽  
Qingyu Zhang ◽  
Lijun Shi ◽  
Fuqiang Gao ◽  
Wei Sun ◽  
...  
Keyword(s):  
Diagnostic Accuracy ◽  
Sensitivity And Specificity ◽  
Periprosthetic Joint Infection ◽  
Data Extraction ◽  
Meta Analysis ◽  
Joint Infection ◽  
Area Under The Curve ◽  
Cochrane Library ◽  
Systematic Research ◽  
High Diagnostic Accuracy

Periprosthetic joint infection (PJI) is a devastating complication after arthroplasty. Prompt establishment of an infection diagnosis is critical but can be very challenging at present. In order to evaluate the diagnostic accuracy of alpha-defensin or leukocyte esterase for PJI, we performed systematic research in PubMed, Embase, and Cochrane Library to retrieve relevant studies. Data extraction and quality assessment were performed by two reviewers independently. A total of thirty-one eligible studies were finally included in the quantitative analysis. The pooled sensitivity and specificity of alpha-defensin (21 studies) for the diagnosis of PJI were 0.89 (95% confidence interval (CI), 0.83 to 0.93) and 0.96 (95% CI, 0.95 to 0.97), respectively. The value of the pooled diagnostic odds ratios (DOR) of alpha-defensin for PJI was 209.14 (95% CI, 97.31 to 449.50), and the area under the curve (AUC) was 0.98 (95% CI, 0.96 to 0.99). The pooled sensitivity and specificity of leukocyte esterase (17 studies) for the diagnosis of PJI were 0.90 (95% CI, 0.84 to 0.95) and 0.96 (95% CI, 0.93 to 0.97), respectively. The value of the DOR of leukocyte esterase for PJI was 203.23 (95% CI, 96.14 to 429.61), and the AUC was 0.98 (95% CI, 0.96 to 0.99). Based on the results of our meta-analysis, we can conclude that alpha-defensin and leukocyte esterase are valuable synovial fluid markers for identifying PJI with comparable high diagnostic accuracy.

scholarly journals Factors to Consider When Assessing the Diagnostic Accuracy of Synovial Leukocyte Count in Periprosthetic Joint Infection

2019 ◽  
Vol 4 (4) ◽  
pp. 167-173 ◽  
Author(s):  
Karsten D Ottink ◽  
Carol Strahm ◽  
Anneke Muller-Kobold ◽  
Parham Sendi ◽  
Marjan Wouthuyzen-Bakker
Keyword(s):  
Synovial Fluid ◽  
Blood Cell ◽  
Diagnostic Accuracy ◽  
Periprosthetic Joint Infection ◽  
Leukocyte Count ◽  
Joint Infection ◽  
Polymorphonuclear Leucocytes ◽  
Causative Microorganism ◽  
Wbc Count ◽  
Morbid Conditions

Abstract. Synovial white blood cell (WBC) count and the percentage of polymorphonuclear leucocytes (PMN%) is one of the diagnostic criteria to diagnose a periprosthetic joint infection (PJI). Although the test is widely available, the diagnostic accuracy of proposed cut-off levels are influenced by several factors, such as: the affected joint, co-morbid conditions, the causative microorganism and the gathering and processing of samples in the laboratory. In this narrative review we provide an overview on how and to what extent these factors can affect the synovial WBC count and PMN% in synovial fluid.

scholarly journals Diagnostic Accuracy of D-Dimer in Periprosthetic Joint Infection: a diagnostic meta-analysis

2020 ◽  
Author(s):  
Haitao Zhang ◽  
Xiaobo Sun ◽  
Pengfei Xin ◽  
Xingyang Zhu ◽  
Ke Jie ◽  
...  
Keyword(s):  
Diagnostic Accuracy ◽  
Likelihood Ratio ◽  
Periprosthetic Joint Infection ◽  
Meta Analysis ◽  
Joint Infection ◽  
Random Effect Model ◽  
Positive Likelihood Ratio ◽  
Diagnostic Methods ◽  
Cochrane Library ◽  
D Dimer

Abstract Background: Periprosthetic joint infection (PJI) is one of the most devastating complications after total joint replacement. Up to now, the diagnosis of PJI is still in a dilemma. As a novel biomarker, whether D-Dimer is valuable in the diagnosis of PJI remains controversial. This meta-analysis attempts to determine the diagnostic accuracy of D-Dimer in PJI.Methods: Relevant literature was retrieved from PubMed, Embase, Web of Science, and Cochrane Library (from database establishment to April 2020). Literature quality was evaluated using Revman (Version 5.3). The random effect model was used in Stata version 14.0 software to combine sensitivity, specificity, likelihood ratio (LR), diagnostic odds ratio (DOR), summary receiver operating characteristic (SROC) curve and area under SROC (AUC) to evaluate the diagnostic value of overall D-Dimer for PJI. Meta regression and subgroup analysis were performed according to the threshold, the study design, the sample size, the diagnostic gold standard, the country of study, and the type of sample.Results:A total of 9 studies were included in this study, including 1592 patients. The pooled sensitivity and specificity of D-Dimer for PJI diagnosis are 0.82(95%CI, 0.72~0.89) and 0.73(95%CI, 0.58~0.83), respectively. The pooled positive likelihood ratio (PLR) and negative likelihood ratio (NLR) were 2.99 (95%CI, 1.84~4.88) and 0.25 (95%CI, 0.15~0.41), respectively. The pooled AUC and diagnostic odds ratios were 0.85 (95%CI, 0.82~0.88) and 12.20 (95% CI, 4.98~29.86), respectively.Conclusion: D-Dimer is a promising biomarker for the diagnosis of PJI, which should be used in conjunction with other biomarkers or as an adjunct to other diagnostic methods to enhance diagnostic performance.

Diagnostic Accuracy of Serum, Synovial, and Tissue Testing for Chronic Periprosthetic Joint Infection After Hip and Knee Replacements

2019 ◽  
Vol 101 (7) ◽  
pp. 635-649 ◽  
Author(s):  
Alberto V. Carli ◽  
Hesham Abdelbary ◽  
Nadera Ahmadzai ◽  
Wei Cheng ◽  
Beverley Shea ◽  
...  
Keyword(s):  
Diagnostic Accuracy ◽  
Periprosthetic Joint Infection ◽  
Joint Infection ◽  
Knee Replacements

scholarly journals Influence of inflammatory arthritis on leukocyte esterase strip results in the diagnosis of periprosthetic joint infection

2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Jinling Zhang ◽  
Binjie Gui ◽  
Fangyue Cheng ◽  
Genxiang Rong ◽  
Zhi Tang ◽  
...  
Keyword(s):  
Synovial Fluid ◽  
Periprosthetic Joint Infection ◽  
Inflammatory Arthritis ◽  
Inflammatory Diseases ◽  
Joint Infection ◽  
Test Results ◽  
Color Changes ◽  
Negative Results ◽  
Two Samples ◽  
Strip Test

Abstract Background The leukocyte esterase (LE) strip is considered as a helpful method to detect infection, which might be influenced by other inflammatory diseases. This study aims to explore whether the centrifugation of synovial fluid could influence the positive result of LE strip caused by inflammatory arthritis during the diagnosis of periprosthetic joint infection (PJI). Methods From March 2016 to December 2018, 64 patients who were diagnosed as PJI or aseptic arthritis and another 20 patients with inflammatory arthritis were enrolled in our study. After synovial fluid samples were obtained, the LE strip test was performed with and without centrifugation. Then clinicians read the color changes 3 min after the samples were dropped and classify the results based on the instruction of strip. The differences between septic and aseptic arthritis patients and septic and inflammatory arthritis patients were analyzed. Results Among the included 21 PJI samples, 19 of them showed positive results (++) of LE strip before centrifugation. After centrifugation, two samples changed from two-positive (++) to one-positive (+), which is also considered as positive. Before centrifugation, 29 of the LE strip tests in the aseptic arthritis group (43 samples included) were ++ or +. After centrifugation, 16 of the samples yielded negative results. Among 20 samples with inflammatory arthritis, LE strip of 18 samples were positive (++ or +) before centrifugation, among which only 3 samples remained as positive after centrifugation. Conclusion LE strip test results could be influenced by inflammatory arthritis during the diagnosis of PJI. Centrifugation should be performed for LE strip tests to determine whether the result is a true positive or a false positive influenced by inflammatory arthritis.

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