Evidence map›Paper›PMID 23354171›Full record

ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2013

Translation and validation of 'The Knee Society Clinical Rating System' into Spanish.

Oscar Ares, Enric Castellet, Francisco Maculé, Vicenç León, Elvira Montañez, Alicia Freire, Pedro Hinarejos, Ferran Montserrat, Juan Ramon Amillo

Abstract readValidation Study
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In one paragraph

Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing 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

30 citing papers in PubMed.

  1. Trial
  2. Trial
  3. Local infiltration analgesia adds no clinical benefit in pain control to peripheral nerve blocks after total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2016
    Trial
  4. A clinical risk score enables early prediction of dissatisfaction 1 year after total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025
    Article
  5. Article
  6. Article
  7. Total knee replacement in octogenarians, Is age a determining factor in predicting complications? a retrospective cohort study.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2023
    Article
  8. Defining the minimal clinically important difference for the knee society score following revision total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2022
    Article
  9. Article
  10. Observational
  11. A validated outcome categorization of the knee society score for total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2022
    Article
  12. Article
  13. Article
  14. Article
  15. Limb length discrepancy after total knee arthroplasty may contribute to suboptimal functional results.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2020
    Article
  16. Anxiety is the cause of the worse outcomes of allergic patients after total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2020
    Article
  17. Observational
  18. Article
  19. Minimal clinically important differences and substantial clinical benefits for Knee Society Scores.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2020
    Article
  20. Pressure algometry is a suitable tool to assess anterior knee pain in osteoarthritic patients.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2019
    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

9 authors.

Oscar AresOrthopedic Department, Hospital Clinic Barcelona, University of Barcelona, Villarroel st. 170, 08036, Barcelona, Spain, arestraumatologia@gmail.com.
Enric Castellet
Francisco Maculé
Vicenç León
Elvira Montañez
Alicia Freire
Pedro Hinarejos
Ferran Montserrat
Juan Ramon Amillo

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe Knee Society Clinical Rating System (KSS) is a questionnaire evaluating knee function itself and the patient's ability to walk and climb stairs. The aim of our study is to present the validated translation of KSS into Spanish.

methodsThe validated method of translation-retrotranslation was used to translate KSS into Spanish. Three hundred and sixteen patients undergoing primary knee arthroplasty, before surgery and 6 months postoperative, completed the questionnaire (with an orthopedist's help). Psychometric properties of feasibility (percentage of no answers), validity and sensitivity to change (test's ability to detect change in patients' functional status over time) were assessed. In the second part of the study, the translated version of KSS was compared with two already validated questionnaires (SF-36 and WOMAC).

resultsDuring the translation process, item 3 (ROM) presented low appropriateness and null comprehensibility. The alternative writing proposed was 'for every 5°, we sum up 1 point, as if 8° were 1 point, to obtain the maximum scoring of 25 points you should bend more than 200°'. Feasibility: the item 'malalignment' obtained 15 % of missing item at visit 1. The percentage of invalid items was high in both visits (60 and 47 %). VALIDITY: the coefficients of convergent correlation with WOMAC and SF-36 scales confirm the questionnaire's validity. Sensitivity to change: significant differences were found in all cases between the mean scores comparing both visits.

conclusionThe translated version 1.1 of KSS (final version) has shown to be feasible, valid and sensible to changes within the clinical practice of patients undergoing primary knees arthroplasty.

Indexed as

Arthroplasty, Replacement, KneeKnee JointSurveys and QuestionnairesFeasibility StudiesGaitHumansOsteoarthritis, KneeWalking

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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.