Evidence map›Paper›PMID 35233711›Full record

SynthesisInternational orthopaedics2022

Synovial fluid calprotectin in diagnosing periprosthetic joint infection: A meta-analysis.

Ashraf T Hantouly, Motasem Salameh, Ahmad A Toubasi, Loay A Salman, Osama Alzobi, Abdulaziz F Ahmed, Shamsi Hameed, Bashir Zikria, Ghalib Ahmed

Open access · hybridAbstract readMeta-AnalysisReview
In one paragraph

Synthesis in International orthopaedics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 4 pooled it
9.4field-weighted citation impact, top 1% of its field
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

31 citing papers in PubMed, 4 syntheses or guidelines pooled it, 48 citations in OpenAlex.

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  18. Synovial fluid calprotectin quantitative rapid diagnostic biomarker for risk stratification of periprosthetic joint infections.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2025
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  19. Article
  20. Periprosthetic joint infections: state-of-the-art.Archives of orthopaedic and trauma surgery · 2024
    Review
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

9 authors at 5 institutions in 3 countries.

Ashraf T HantoulyDepartment of Orthopedic Surgery, Hamad Medical Corporation, Doha, Qatar.
Motasem SalamehDepartment of Orthopaedic Surgery, The Warren Alpert Medical School at Brown University, 1 Kettle Point Avenue, East Providence, RI, 02915, USA.
Ahmad A ToubasiFaculty of Medicine, University of Jordan, Amman, Jordan.
Loay A SalmanDepartment of Orthopedic Surgery, Hamad Medical Corporation, Doha, Qatar.
Osama AlzobiDepartment of Orthopedic Surgery, Hamad Medical Corporation, Doha, Qatar.
Abdulaziz F AhmedDepartment of Orthopaedic Surgery, Johns Hopkins School of Medicine, Baltimore, MD, USA.
Shamsi HameedDepartment of Orthopedic Surgery, Hamad Medical Corporation, Doha, Qatar.
Bashir ZikriaAspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar.
Ghalib AhmedDepartment of Orthopedic Surgery, Hamad Medical Corporation, Doha, Qatar. Ghaliboudah@yahoo.com.ORCID http://orcid.org/0000-0003-4326-7250
Hamad Medical Corporation · QABrown University · USJohns Hopkins University · USQatar Orthopaedic and Sports Medicine Hospital · QAUniversity of Jordan · JO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposePeriprosthetic joint infection (PJI) is one of the most debilitating complications following joint replacement surgery. Synovial biomarkers, such as Calprotectin, have become valuable in the diagnosis of PJI. This meta-analysis aimed to investigate the role of synovial Calprotectin as a diagnostic test in PJI.

methodsThis meta-analysis was conducted with adherence to PRISMA guidelines. PubMed, Cochrane, Web of Science, and Google Scholar were searched until February 2022. Inclusion criteria were as follows: all studies in which the patients with joint replacements were evaluated for PJI; synovial Calprotectin was the biomarker of choice to diagnose PJI; standardized guidelines were used as the gold standard for the diagnosis; and a comparison between the guidelines and Calprotectin results was made. Diagnostic parameters such as sensitivity, specificity, diagnostic odds ratio (DOR), positive predictive value, negative predictive value, and area under the curve (AUC) were calculated for the included studies to evaluate synovial Calprotectin for PJI diagnosis.

resultsThe total number of the included patients was 618 from eight studies. The pooled sensitivity, specificity, and diagnostic odds ratio of Calprotectin test were 92% (95%CI: 84%-98%), 93% (95%CI: 84%-99%), and 187.61 (95%CI: 20.21-1741.18), respectively. The results showed that the negative and positive likelihood ratios of the Calprotectin test were 0.07 (95%CI: 0.02-0.22) and 9.91 (95%CI: 4.11-23.93), respectively. The SROC showed that the area under the curve for Calprotectin test was 0.935.

conclusionSynovial Calprotectin is a valuable biomarker as it provides a reliable and rapid diagnosis of PJI. It has the potential to be used in clinical practice due to its high sensitivity and specificity that are comparable to the other utilized biomarkers. Another advantage is its low cost relative to other biomarkers.

Indexed as

Arthritis, InfectiousProsthesis-Related InfectionsBiomarkersHumansLeukocyte L1 Antigen ComplexSensitivity and SpecificitySynovial FluidBiomarkersLeukocyte L1 Antigen ComplexArthroplastyCalprotectinDiagnosisPeriprosthetic joint infectionSynovial

Identifiers

PMID35233711
PMCPMC9001224
OpenAlexW4214822401

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.