Evidence map›Paper›PMID 29748697›Full record

ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2019

Increased symptoms of stiffness 1 year after total knee arthroplasty are associated with a worse functional outcome and lower rate of patient satisfaction.

N D Clement, M Bardgett, D Weir, J Holland, D J Deehan

Abstract read
In one paragraph

Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 2 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

20 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. The negative effect of joint line elevation after total knee arthroplasty on outcome.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2019
    Pooled it
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  10. Review
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  13. Internal rotation of the tibial component in total knee arthroplasty can lead to extension deficit.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2020
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  19. Improved clinical outcomes after revision arthroplasty with a hinged implant for severely stiff total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2019
    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

5 authors.

N D ClementDepartment of Orthopaedics, Freeman Hospital, Freeman Road, High Heaton, Newcastle upon Tyne, NE7 7DD, UK.
M BardgettDepartment of Orthopaedics, Freeman Hospital, Freeman Road, High Heaton, Newcastle upon Tyne, NE7 7DD, UK.
D WeirDepartment of Orthopaedics, Freeman Hospital, Freeman Road, High Heaton, Newcastle upon Tyne, NE7 7DD, UK.
J HollandDepartment of Orthopaedics, Freeman Hospital, Freeman Road, High Heaton, Newcastle upon Tyne, NE7 7DD, UK.
D J DeehanDepartment of Orthopaedics, Freeman Hospital, Freeman Road, High Heaton, Newcastle upon Tyne, NE7 7DD, UK. deehan1@hotmail.co.uk.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeSymptoms of stiffness after total knee arthroplasty (TKA) cause significant morbidity, but there is limited data to facilitate identification of those most at risk after surgery. Stratifying risk can aid earlier directed treatment options.

methodsA retrospective cohort consisting of 2589 patients undergoing a primary TKA was identified from an established arthroplasty database. Patient demographics, Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), and short form (SF) 12 scores were collected pre-operatively and 1 year post-operatively. In addition, patient satisfaction was assessed for 1 year. Patients with a worse WOMAC stiffness score in 1 year were defined as the "increased" stiffness group and the other cohort as the non-stiffness group.

resultsAt 1 year after surgery 129 (5%) patients had a significant increase in their stiffness symptoms (20%, 95% confidence interval (CI) 17.9-22.0, p < 0.001), and had significantly (all p < 0.001) less of an improvement in their pain, function and total WOMAC scores, and SF-12 scores compared to the non-stiffness group (n = 2460). Patient satisfaction was significantly lower (odds ratio (OR) 0.178, CI 0.121 to 0.262, p < 0.001) for the increased stiffness group. Logistic regression analysis identified male gender (OR 1.66, p = 0.02), lung disease (OR 2.06, p = 0.002), diabetes (OR 1.82, p = 0.02), back pain (OR 1.81, p = 0.005), and a pre-operative stiffness score of 44 or more (OR 5.79, p < 0.001) were significantly predictive of increased stiffness.

conclusionPatients with increased symptoms of stiffness after TKA have a worse functional outcome and a lower rate of patient satisfaction, and patients at risk of being in this group should be informed pre-operatively. LEVEL OF EVIDENCE: Retrospective prognostic study, Level III.

Indexed as

AgedArthroplasty, Replacement, KneeFemaleFollow-Up StudiesHumansKnee JointMaleOsteoarthritis, KneePatient SatisfactionPostoperative PainPostoperative PeriodPrognosisRange of Motion, ArticularRetrospective StudiesTime FactorsTreatment OutcomeKnee replacementOutcomePredictorsStiffnessTKATotal knee arthroplasty

Identifiers

PMID29748697
PMCPMC6435608

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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.