Evidence map›Paper›PMID 32269006›Full record

ArticleThe Journal of arthroplasty2020

Postoperative Serum Cytokine Levels Are Associated With Early Stiffness After Total Knee Arthroplasty: A Prospective Cohort Study.

Michael-Alexander Malahias, George A Birch, Haoyan Zhong, Alexandra Sideris, Alejandro Gonzalez Della Valle, Peter K Sculco, Meghan Kirksey

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of arthroplasty, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 2 pooled it
1.8field-weighted citation impact, top 14% 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

13 citing papers in PubMed, 2 syntheses or guidelines pooled it, 28 citations in OpenAlex.

  1. Pooled it
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  8. Differences in synovial fibrosis relative to range of motion in knee osteoarthritis patients.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2022
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Michael-Alexander MalahiasThe Stavros Niarchos Foundation Complex Joint Reconstruction Center, Hospital for Special Surgery, New York NY.
George A BirchDepartment of Anesthesiology, Critical Care, and Pain Management, Hospital for Special Surgery, New York NY.
Haoyan ZhongDepartment of Anesthesiology, Critical Care, and Pain Management, Hospital for Special Surgery, New York NY; Biostatistics Core, Hospital for Special Surgery, New York NY.
Alexandra SiderisDepartment of Anesthesiology, Critical Care, and Pain Management, Hospital for Special Surgery, New York NY.
Alejandro Gonzalez Della ValleThe Stavros Niarchos Foundation Complex Joint Reconstruction Center, Hospital for Special Surgery, New York NY.
Peter K SculcoThe Stavros Niarchos Foundation Complex Joint Reconstruction Center, Hospital for Special Surgery, New York NY.
Meghan KirkseyDepartment of Anesthesiology, Critical Care, and Pain Management, Hospital for Special Surgery, New York NY; Department of Anesthesiology, Weill Cornell Medicine, New York, NY.
Hospital for Special Surgery · US

Funding

Disparities in COVID Disease Severity and Outcomes in New York CityUL1TR002384 · NCATS · WEILL MEDICAL COLL OF CORNELL UNIV · PI JULIANNE L IMPERATO-MCGINLEY · 2017 to 2026
$86.2M
Clinical and Translational Science CenterUL1TR000457 · NCATS · WEILL MEDICAL COLL OF CORNELL UNIV · PI IMPERATO-MCGINLEY, JULIANNE L · 2012 to 2016
$46.0M
NCATS NIH HHS UL1 TR000457NCATS NIH HHS UL1 TR002384
6 · The paper itself

Abstract

backgroundInflammatory cytokines have been implicated in organ fibrosis; however, their role in the development of arthrofibrosis after total knee arthroplasty (TKA) has not been well explored. The purpose of this study is to assess whether perioperative synovial fluid or blood plasma cytokine levels are associated with reduced early post-TKA range of motion.

methodsA total of 179 patients with end-stage idiopathic osteoarthritis undergoing TKA were enrolled in this prospective cohort study. Synovial fluid and blood plasma were collected prearthrotomy and plasma was collected longitudinally in the postacute care unit and on postoperative days (PODs) 1 and 2. Stiffness was defined as ≤95° range of motion measured with a goniometer at 6 weeks (±2 weeks).

resultsThirty-two of 162 (19.8%) patients analyzed were stiff at 6 weeks postoperatively. Postoperative plasma levels of 9 cytokines (Eotaxin3, IL-5, IL12_23p40, IP10, VEGF, IL-7, IL-12p70, IL-16, IL-17a) were significantly different between stiff and nonstiff patients on POD1 and/or POD2. An association between preoperative plasma and synovial fluid cytokine levels and the development of postoperative stiffness was not detected.

conclusionThe results of this study suggest that there is a distinct acute postoperative cytokine response profile in patients who develop stiffness 6 weeks after TKA. This profile was characterized by significant differences in levels of 9 cytokines over the first 2 postoperative days. These results identify cytokines that are potential biomarkers for risk of early stiffness after TKA and may play a role in the pathophysiology of this outcome.

Indexed as

Arthroplasty, Replacement, KneeJoint DiseasesCytokinesHumansKnee JointProspective StudiesRange of Motion, ArticularCytokinesarthrofibrosisbiological risk factorschronic fibrotic inflammationcytokinespostoperative stiffnesstotal knee arthroplasty

Identifiers

PMID32269006
PMCPMC8279012
OpenAlexW3008631176

What OpenQuestion holds

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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.