Evidence map›Paper›PMID 37402969›Full record

ArticleJournal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology2023

Joint fluid interleukin-6 combined with the neutral polymorphonuclear leukocyte ratio (PMN%) as a diagnostic index for chronic periprosthesis infection after arthroplasty.

Xudong Su, Bo Zhu, Leilei Qin, Jianye Yang, Li Wei, Zhenghao Xu, Keyu Wei, Jiayi Wang, Li Chen, Chen Zhao and 4 more

Abstract read
In one paragraph

Article in Journal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  3. Article
  4. Article
  5. Diagnostic work-up in periprosthetic joint infections of the knee: can the albumin-to-globulin ratio be a screening tool?Journal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology · 2025
    Article
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  7. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors.

Xudong Su *Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
Bo Zhu *Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
Leilei QinDepartment of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
Jianye YangDepartment of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
Li WeiDepartment of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
Zhenghao XuDepartment of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
Keyu WeiDepartment of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
Jiayi WangDepartment of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
Li ChenDepartment of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
Chen ZhaoDepartment of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
Cheng ChenDepartment of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
Wei HuangDepartment of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
Yan Xiong *Department of Orthopedics, Daping Hospital, Army Medical University, Chongqing, China. xiongyan815@163.com.
Ning Hu *Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China. huncqjoint@yeah.net.ORCID http://orcid.org/0000-0001-9933-5924

Funding

Excellent Project of Chongqing Overseas Returnee Entrepreneurship and Innovation Support Program CX2022032General Project of Chongqing Technology Innovation and Application Development Special Project Cstc2020jscx-msxmx0094General Project of National Natural Science Foundation of China 82072443the key project of Chongqing Science and Health Joint Medical Research Project 2019ZDXM014
6 · The paper itself

Abstract

backgroundThe diagnosis of periprosthetic joint infection (PJI) remains a challenge in clinical practice. Many novel serum and joint fluid biomarkers have important implications for the diagnosis of PJI. The presented study evaluated the value of joint fluid interleukin-6 (IL-6) combined with the neutral polymorphonuclear leukocyte (PMN%) ratio for chronic PJI diagnosis after arthroplasty. MATERIALS AND

methodsSixty patients with chronic PJI or aseptic failure who underwent hip or knee revision from January 2018 to January 2020 in our department were included in this retrospective study. According to the 2013 MSIS diagnostic criteria, the 60 patients were divided into a PJI group and a non-PJI group (30 patients per group). We collected the joint fluid before surgery and determined the level of IL-6 and the PMN% by ELISA, and the differences between the two groups were compared. The diagnostic efficacy of joint fluid IL-6 combined with PMN% in chronic PJI was analyzed using a receiver operating characteristic curve (ROC curve).

resultsThe diagnosis of PJI using joint fluid IL-6 combined with PMN% presented an area under the curve of 0.983, which was more accurate than the areas under the curve for diagnosis using IL-6 and PMN% individually (0.901 and 0.914, respectively). The optimal threshold values for IL-6 and PMN% were 662.50 pg/ml and 51.09%, respectively. Their sensitivity and specificity were 96.67% and 93.33%, respectively. The accuracy of the diagnosis of PJI was 95.00%.

conclusionsJoint fluid IL-6 combined with PMN% can be used as an auxiliary method to detect chronic infection around the prosthesis after hip/knee arthroplasty. LEVEL OF EVIDENCE: Patients who underwent hip/knee revision at the First Hospital of Chongqing Medical University for periprosthetic infection or aseptic failure of the prosthesis after hip/knee arthroplasty from January 2018 to January 2020 were included. Trial registration This study was approved by the ethics committee of the First Hospital of Chongqing Medical University on September 26, 2018 (local ethics committee number: 20187101) and registered with the China Clinical Trials Registry (registration number: ChiCTR1800020440) with an approval date of December 29, 2018.

Indexed as

Arthritis, InfectiousArthroplasty, Replacement, HipProsthesis-Related InfectionsBiomarkersHumansInterleukin-6NeutrophilsPersistent InfectionRetrospective StudiesSensitivity and SpecificityBiomarkersInterleukin-6DiagnosisInterleukin 6Joint fluidNeutral polymorphonuclear leukocytes (PMN%)Periprosthetic infection

Identifiers

PMID37402969
PMCPMC10319682

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.