Evidence map›Paper›PMID 37083739›Full record

Observational studyKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2023

Hospital variation in revision rates after primary knee arthroplasty was not explained by patient selection: baseline data from 1452 patients in the Danish prospective multicenter cohort study, SPARK.

Anne Mørup-Petersen, Michael Rindom Krogsgaard, Mogens Laursen, Frank Madsen, Kristian Breds Geoffroy Mongelard, Lone Rømer, Matilde Winther-Jensen, Anders Odgaard

Abstract readObservational StudyMulticenter Study
PubMed Full text at PMC Publisher
In one paragraph

Observational study in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–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

6 citing papers in PubMed.

  1. Article
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  5. Observational
  6. Article
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

8 authors.

Anne Mørup-PetersenDepartment of Orthopaedic Surgery, Copenhagen University Hospital Herlev and Gentofte, Gentofte Hospitalsvej 1, 2900, Hellerup, Denmark. morup.anne@gmail.com.ORCID http://orcid.org/0000-0002-6743-3316
Michael Rindom KrogsgaardDepartment of Orthopaedic Surgery, Section for Sports Traumatology, Bispebjerg and Frederiksberg Hospital, Copenhagen, University of Copenhagen, Bispebjerg Bakke 23, 2400, Copenhagen, NV, Denmark.ORCID http://orcid.org/0000-0002-9976-4865
Mogens LaursenDepartment of Orthopaedic Surgery, Aalborg University Hospital, Hobrovej 18-22, 9000, Aalborg, Denmark.ORCID http://orcid.org/0000-0002-2791-3921
Frank MadsenDepartment of Orthopaedic Surgery, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark.ORCID http://orcid.org/0000-0003-3335-6719
Kristian Breds Geoffroy MongelardDepartment of Radiology, Copenhagen University Hospital Herlev and Gentofte, Gentofte Hospitalsvej 1, 2900, Hellerup, Denmark.ORCID http://orcid.org/0000-0002-2885-9170
Lone RømerDepartment of Radiology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark.
Matilde Winther-JensenCenter for Clinical Research and Prevention, Department of Data, Biostatistics and Pharmacoepidemiology, Bispebjerg and Frederiksberg Hospital, Copenhagen, University of Copenhagen, Nordre Fasanvej 57, 2000, Frederiksberg, Denmark.ORCID http://orcid.org/0000-0002-4447-6292
Anders OdgaardDepartment of Orthopaedic Surgery, Copenhagen University Hospital Herlev and Gentofte, Gentofte Hospitalsvej 1, 2900, Hellerup, Denmark.ORCID http://orcid.org/0000-0002-4841-518X

Funding

The Health Research Fund of the Capital Region of Denmark July 2015
6 · The paper itself

Abstract

purposeRevision rates following primary knee arthroplasty vary by country, region and hospital. The SPARK study was initiated to compare primary surgery across three Danish regions with consistently different revision rates. The present study investigated whether the variations were associated with differences in the primary patient selection.

methodsA prospective observational cohort study included patients scheduled Sep 2016 Dec 2017 for primary knee arthroplasty (total, medial/lateral unicompartmental or patellofemoral) at three high-volume hospitals, representing regions with 2-year cumulative revision rates of 1, 2 and 5%, respectively. Hospitals were compared with respects to patient demographics, preoperative patient-reported outcome measures, motivations for surgery, implant selection, radiological osteoarthritis and the regional incidence of primary surgery. Statistical tests (parametric and non-parametric) comprised all three hospitals.

resultsBaseline data was provided by 1452 patients (89% of included patients, 56% of available patients). Patients in Copenhagen (Herlev-Gentofte Hospital, high-revision) were older (68.6 ± 9 years) than those in low-revision hospitals (Aarhus 66.6 ± 10 y. and Aalborg (Farsø) 67.3 ± 9 y., p = 0.002). In Aalborg, patients who had higher Body Mass Index (mean 30.2 kg/m

conclusionPatient-reported outcome measures prior to primary knee arthroplasty were comparable across hospitals with differing revision rates. While radiographic classifications and surgical incidence indicated higher thresholds for primary surgery in one low-revision hospital, most variations in patient and implant selection were contrary to well-known revision risk factors, suggesting that patient selection differences alone were unlikely to be responsible for the observed variation in revision rates across Danish hospitals. LEVEL OF EVIDENCE: II, Prospective cohort study.

Indexed as

Knee ProsthesisOsteoarthritis, KneeDenmarkFemaleHospitals, High-VolumeHumansMaleProspective StudiesReoperationTreatment OutcomeEpidemiologyHospital variationKnee arthroplastyKnee replacementOsteoarthritisPatient-reported outcome measuresPatient selectionRadiographic classificationRegional differenceRevision rate variation

Identifiers

PMID37083739
PMCPMC10356667

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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.