Evidence map›Paper›PMID 20830479›Full record

ArticleArchives of orthopaedic and trauma surgery2011

Cross-cultural adaptation and validation of the Oxford 12-item knee score in Japanese.

R Takeuchi, T Sawaguchi, N Nakamura, H Ishikawa, T Saito, S Goldhahn

Abstract readValidation Study
PubMed Publisher
In one paragraph

Article in Archives of orthopaedic and trauma surgery, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.2field-weighted citation impact, top 19% 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

20 citing papers in PubMed, 44 citations in OpenAlex.

  1. Trial
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  8. Chinese translation and validation of the Oxford Knee Scale for patients with knee osteoarthritis.Hong Kong physiotherapy journal : official publication of the Hong Kong Physiotherapy Association Limited = Wu li chih liao · 2017
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  9. Observational
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  14. High correlation of the Oxford Knee Score with postoperative pain, but not with performance-based functioning.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2016
    Article
  15. Article
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  17. Outcome after high tibial open-wedge osteotomy: a retrospective evaluation of 533 patients.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2013
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  18. Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 4 institutions in 2 countries.

R TakeuchiDepartment of Orthopaedic Surgery, Yokohama City University School of Medicine, Fukuura, Kanazawa-ku, Japan.
T Sawaguchi
N Nakamura
H Ishikawa
T Saito
S Goldhahn
Yokohama City University · JPAO Foundation · CHOsaka Health Science University · JPToyama City Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionWith the high incidence of knee osteoarthritis (OA) in Japan, there is a strong need not only for surgical therapies, but also for validated outcome measures. For this study, we completed cross-cultural adaptation, testing and validation of the Oxford knee score (OKS) for prospective use in national and international clinical studies involving Japanese patients. MATERIALS AND

methodsThe Japanese version of the OKS was developed according to the standard cross-cultural adaptation guidelines. For validation, the OKS was tested on 54 patients diagnosed with OA, osteonecrosis, ligament or meniscus injury. Reliability was tested using the intraclass correlation coefficient (ICC). Internal consistency or homogeneity was assessed using Cronbach's alpha. The correlation between the Japanese OKS, WOMAC and SF-36 questionnaires was used to assess construct validity.

resultsNo major difficulties were encountered with the translation and pre-testing stages. For reliability and validity, the Japanese OKS was completed without any missed responses by 53 (98.15%) and 52 (96.30%) patients at the first and second distribution, respectively. The total OKS showed good reliability with an ICC of 0.85. Internal consistency was strong (Cronbach's alpha = 0.90). Strong construct validity (ICC values of 0.51-0.84) was obtained against the WOMAC and SF-36 (physical functioning, role-physical, bodily pain, and social functioning subscales) scores. Notable "ceiling" effects of the OKS were reported for 11 of the 12 questionnaire items.

conclusionThe Japanese OKS has proven to be a reliable and valid instrument for the self-assessment of knee pain and function in Japanese speaking patients with knee OA and other knee complaints.

Indexed as

Cultural CharacteristicsOsteoarthritis, KneeSurveys and QuestionnairesFemaleHumansJapanMaleMiddle AgedPain MeasurementTreatment Outcome

Identifiers

PMID20830479
OpenAlexW2103042716

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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.