Evidence map›Paper›PMID 31267190›Full record

ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2020

Differences in case mix and outcomes between Swiss and Scottish total knee arthroplasty patients.

Johannes M Giesinger, Karlmeinrad Giesinger, Bruno Federico, Colin D Howie, David F Hamilton

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.4field-weighted citation impact, top 12% 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

10 citing papers in PubMed, 17 citations in OpenAlex.

  1. Review
  2. Article
  3. Global mapping of institutional and hospital-based (Level II-IV) arthroplasty registries: a scoping review.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2024
    Article
  4. Article
  5. Article
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  9. Review
  10. Observational
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 at 4 institutions in 4 countries.

Johannes M GiesingerInnsbruck Institute of Patient-centered Outcome Research (IIPCOR), Dr. Stumpf Straße 56, 6020, Innsbruck, Austria. johannes.giesinger@iipcor.org.ORCID http://orcid.org/0000-0003-2744-5950
Karlmeinrad GiesingerDepartment of Orthopaedic Surgery, Kantonsspital St. Gallen, St. Gallen, Switzerland.
Bruno FedericoDepartment of Human Sciences, Society and Health, University of Cassino and Southern Lazio, Cassino, Italy.
Colin D HowieDepartment of Orthopaedic Surgery, University of Edinburgh, Edinburgh, UK.
David F HamiltonDepartment of Orthopaedic Surgery, University of Edinburgh, Edinburgh, UK.
University of Edinburgh · GBKantonsspital St. Gallen · CHManagement Center Innsbruck · ATUniversità degli studi di Cassino e del Lazio Meridionale · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe clinical benefits of total knee arthroplasty (TKA) are well defined, but little attention has been paid to the cross-cultural variation. The objective of this study was to compare case mix and outcomes following TKA in Swiss and Scottish patients.

methodsData from local registries at a Swiss and a Scottish orthopaedic hospital were extracted to evaluate: (A) age, sex, body mass index (BMI), self-reported health status (EQ-5D), and joint awareness (Forgotten Joint Score-12 (FJS-12)) at pre-surgery, (B) improvement in EQ-5D and FJS-12 scores from pre-surgery to 1 year, and (C) patient satisfaction at 1 year.

resultsData from 2075 Swiss and 994 Scottish TKA patients were available from the local registries. Swiss and Scottish patients differed in age (69.3 vs 68.8 years, p = 0.046), sex ratio (62.9% vs 56.9% women, p = 0.002) and BMI (29.6 vs 30.9, p < 0.001). At pre-surgery, FJS-12 scores were comparable (Swiss 12.1 vs Scottish 10.9, n.s.), but EQ-5D scores were better in Swiss patients (0.52 vs 0.40, p < 0.001). Post-operative improvement was greater in Switzerland for the FJS-12 (+ 55.1 vs + 32.2, p < 0.001), but not for the EQ-5D (+ 0.31 vs + 0.29, n.s.). The satisfaction rate was similar in both groups (88.3% vs 89.6%, n.s.).

conclusionSubtle cross-cultural variation was evident in TKA case-mix factors between the two countries. Satisfaction and improvement in health status were similar, while improvement in joint-specific outcome was notably greater in Switzerland. Understanding cross-cultural variability of the outcome has important implications when interpreting study and registry data from other countries and when counselling a patient in daily practice. LEVEL OF EVIDENCE: Retrospective cohort, Level III.

Indexed as

Arthroplasty, Replacement, KneeDiagnosis-Related GroupsAgedAge FactorsBody Mass IndexFemaleFollow-Up StudiesHumansMaleMiddle AgedOrthopedicsOsteoarthritis, KneePatient Reported Outcome MeasuresPatient SatisfactionPostoperative PeriodRegistriesComparative studyCross-culturalEQ-5DForgotten Joint Score-12Patient-reported outcomeTotal knee arthroplasty

Identifiers

PMID31267190
OpenAlexW2953527448

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.