Evidence map›Paper›PMID 37773212›Full record

ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2023

Cross-cultural adaptation and validation of the KOOS, JR questionnaire for assessing knee osteoarthritis in Spanish-speaking patients.

Rodrigo Guiloff, Magaly Iñiguez, Tomás Prado, Francisco Figueroa, Nicolás Olavarría, Eduardo Carrasco, Enrique Ergas, Martín Salgado, Stephen Lyman

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In one paragraph

Article 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 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 14% 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

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 7 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Validating Patient-Reported Outcomes and Surveys in Other Languages.Current reviews in musculoskeletal medicine · 2025
    Review
  4. Article
  5. 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 at 7 institutions in 3 countries.

Rodrigo GuiloffDepartamento Traumatología, Complejo Asistencial Dr. Sótero del Río, Santiago, Chile. rguiloff@gmail.com.ORCID http://orcid.org/0000-0001-9030-4232
Magaly IñiguezDepartamento Traumatología, Complejo Asistencial Dr. Sótero del Río, Santiago, Chile.
Tomás PradoDepartamento Traumatología, Complejo Asistencial Dr. Sótero del Río, Santiago, Chile.
Francisco FigueroaDepartamento Traumatología, Complejo Asistencial Dr. Sótero del Río, Santiago, Chile.
Nicolás OlavarríaFacultad Medicina, Finis Terrae, Santiago, Chile.
Eduardo CarrascoDepartamento Traumatología, Complejo Asistencial Dr. Sótero del Río, Santiago, Chile.
Enrique ErgasOrthopaedic Department, New York University, New York, USA.
Martín SalgadoDepartamento Traumatología, Complejo Asistencial Dr. Sótero del Río, Santiago, Chile.
Stephen LymanHospital for Special Surgery, Adult Reconstruction and Joint Replacement Service, Orthopedic Surgery, New York, USA.
Clínica MEDS (Chile) · CLUniversidad del Desarrollo · CLClínica Las Condes · CLFinis Terrae University · CLHospital for Special Surgery · USOrthopaedic Center · USUniversidad de Los Andes, Chile · CL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe present study aims to translate, adapt and validate a Spanish version of the Knee Injury and Osteoarthritis Outcome Score, Joint Replacement (KOOS, JR), including a reliability and validity analysis in patients with knee osteoarthritis (OA).

methodsThis study conducted a prospective validation study following the six stages of the "Guidelines for the Process of Cross-Cultural Adaptation of Self-Report Measures". Psychometric testing was conducted in patients with knee osteoarthritis. Subjects answered the Spanish KOOS, JR (S-KOOS, JR) and a validated Spanish Oxford Knee Score (S-OKS). Retest was conducted at 10 days. Acceptability, floor and ceiling effect, internal consistency (Cronbach's α), reproducibility (mixed-effect model coefficient [MEMC]) and construct validity (Spearman's correlation; p = 0.05) were assessed.

resultsForty-one patients (mean age: 65.6 ± 5.39; 48.8% female) participated in the study. All patients (100%) answered both scores during the first assessment and 38 (92.7%) during the second assessment. All patient-reported outcomes measures were answered completely (100%). The S-KOOS, JR resulted in 100% acceptability when answered. There were no ceiling or floor effects detected. The Cronbach's α for the S-KOOS, JR was 0.927 and its MEMC was 0.852 (CI 95% 0.636-1.078). The Spearman's correlation between the S-KOOS, JR and the S-OKS was 0.711 (CI 0.345-0.608; p < 0.001) and 0.870 (CI 0.444-0.651; p < 0.001) for the first and second assessments, respectively.

conclusionThe S-KOOS, JR has very high internal consistency and reproducibility, with a high correlation with the S-OKS; it is a reliable and valid instrument for characterising Spanish-speaking patients suffering from knee OA. LEVEL OF EVIDENCE: IV.

Indexed as

Arthroplasty, ReplacementOsteoarthritis, KneeAgedCross-Cultural ComparisonFemaleHumansMaleMiddle AgedPsychometricsQuality of LifeReproducibility of ResultsSurveys and QuestionnairesAdaptationKnee osteoarthritisKnee replacementKOOSKOOS, JRPatient-reported outcome measureSpanishValidation

Identifiers

PMID37773212
OpenAlexW4387169829

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.