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Journal of Orthopaedics and Traumatology

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Open Access 01-06-2016 | Original Article

Cross-cultural adaptation and validation of the International Knee Documentation Committee Subjective Knee Form in Greek

Authors: George A. Koumantakis, Konstantinos Tsoligkas, Antonios Papoutsidakis, Athanasios Ververidis, Georgios I. Drosos

Published in: Journal of Orthopaedics and Traumatology | Issue 2/2016

Abstract

Background

Patient-reported outcomes require validation in a particular language and culture before administration for clinical use.

Materials and methods

A systematic translation of the IKDC Subjective Knee Form was initially tested in 30 patients with various knee pathologies to develop the first Greek version (IKDC/SKF-GR). It was then administered to another 80 patients. The test–retest reliability (n = 35) and internal consistency (n = 80) were examined. Construct validity was tested by correlating the IKDC/SKF-GR with the SF-36 subscales (n = 80) and content validity by measuring floor/ceiling effects. Responsiveness was measured in patients with meniscus pathology (n = 24).

Results

Patients filled the form without omissions/questions regarding the phrasing of items. Internal consistency was good (Cronbach’s α = 0.87) and test–retest reliability very good (ICC_2,1 = 0.95, SEM = 4.4 and SDC = 12.2). Correlations with the SF-36 subscales confirmed its construct validity. No floor/ceiling effects were recorded. The effect size was large (ES = 1.26).

Conclusions

The IKDC/SKF-GR has comparable measurement properties to the original form.

Level of evidence

Level II.

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Title: Cross-cultural adaptation and validation of the International Knee Documentation Committee Subjective Knee Form in Greek
Authors: George A. Koumantakis
Konstantinos Tsoligkas
Antonios Papoutsidakis
Athanasios Ververidis
Georgios I. Drosos
Publication date: 01-06-2016
Publisher: Springer International Publishing
Published in: Journal of Orthopaedics and Traumatology / Issue 2/2016
Print ISSN: 1590-9921
Electronic ISSN: 1590-9999
DOI: https://doi.org/10.1007/s10195-015-0362-y

At a glance: The STEP trials

Springer Medicine

Cross-cultural adaptation and validation of the International Knee Documentation Committee Subjective Knee Form in Greek

Abstract

Background

Materials and methods

Results

Conclusions

Level of evidence

At a glance: The STEP trials

Springer Medicine

Abstract

Background

Materials and methods

Results

Conclusions

Level of evidence

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