ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2023
The German version of the KOOS-Child questionnaire (Knee injury and Osteoarthritis Outcome Score for children) shows a good to excellent internal consistency and a high test-retest reliability in children with knee problems.
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 9 papers, 1 of them a synthesis that pooled it.
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Who cites it
9 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.
- Pediatric knee avulsion fractures: A systematic review of injury patterns, treatment strategies, and outcomes.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2025Pooled it
- Long-term patient-reported outcomes and quality of life after tibiofemoral knee dislocations in patients with open growth plates: a retrospective case series from a Level 1 trauma center.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2026Article
- Development and validation of the critical care practical competency scale for clinical nurses.BMC nursing · 2026Article
- Validation of the Turkish version of the knee Osteoarthritis outcome score -child questionnaire.Journal of orthopaedic surgery and research · 2025Article
- Favourable clinical outcomes and low revision rate after M-ACI in adolescents with immature cartilage compared to adult controls: Results at 10 years.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025Article
- Quality of patient- and proxy-reported outcomes for children with impairment of the lower extremity: A systematic review using the COnsensus-based Standards for selection of health Measurement INstruments methodology.Journal of children's orthopaedics · 2024Review
- Effectiveness and mechanism of action of rTMS combined with quadriceps strength training in individuals with knee osteoarthritis: study protocol for a randomized controlled trial.BMC musculoskeletal disorders · 2024Article
- The Moroccan Knee Osteoarthritis Outcome Score (KOOS)-Child Scale: Translation, Cultural Adaptation, and Validation.Cureus · 2023Article
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Authors and funding
4 authors at 2 institutions in 2 countries.
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No grant is acknowledged in the PubMed record.
Abstract
purposeThe Knee Injury Osteoarthritis Outcome Score for children (KOOS-Child) is a self-administered, valid and reliable questionnaire for children and adolescents with knee disorders such as Osgood Schlatter disease, anterior knee pain, and patella dislocation. This study aimed to cross-culturally adapt the German version of the KOOS-Child questionnaire and test the reliability in two groups of children, one treated conservatively and the other surgically.
methodsA forward-backward translation of the original questionnaire into the German language was conducted. Children and adolescents between 10 and 18 years of age with knee disorders were included. Two groups were compared: sample one consisted of 24 participants with knee pain [20.8% boys; mean age = 13.4 (1.8) years treated conservatively. These participants completed the KOOS-Child questionnaire twice within two weeks to assess test-retest reliability. The second sample included 23 subjects (21.7% boys; mean age = 15.3 (1.9) years] treated surgically due to a knee disorder. They completed the questionnaire before surgery and six months postoperatively. Test-retest reliability and internal consistency were assessed using Spearman's rank correlation and Cronbach's alpha.
resultsAll subscales showed a good to excellent internal consistency at both measurement points in both groups (conservatively treated group: a = 0.88-0.95; surgery group a = 0.80-0.91), with the exception of the subscale knee problems (conservatively treated: a = 0.60 and 0.52; surgery: α = 0.77 and 0.66). Test-retest reliability was between r = 0.85 and 0.94.
conclusionThe predominantly good to excellent internal consistency and the high test-retest reliability justifies the use of the German adaptation of the KOOS-Child questionnaire as a reliable multidimensional instrument for measuring health status and therapeutic effects in adolescents' knee disorders.
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