A1 Journal article (refereed)
Assessment of the structural validity of three foot and ankle specific patient-reported outcome measures (2020)

Ponkilainen, V. T., Tukiainen, E. J., Uimonen, M. M., Häkkinen, A., & Repo, J. P. (2020). Assessment of the structural validity of three foot and ankle specific patient-reported outcome measures. Foot and Ankle Surgery, 26(2), 169-174. https://doi.org/10.1016/j.fas.2019.01.009

JYU authors or editors

Publication details

All authors or editors: Ponkilainen, Ville T.; Tukiainen, Erkki J.; Uimonen, Mikko M.; Häkkinen, Arja; Repo, Jussi P.

Journal or series: Foot and Ankle Surgery

ISSN: 1268-7731

eISSN: 1460-9584

Publication year: 2020

Volume: 26

Issue number: 2

Pages range: 169-174

Publisher: Elsevier Ltd

Publication country: United Kingdom

Publication language: English

DOI: https://doi.org/10.1016/j.fas.2019.01.009

Publication open access: Not open

Publication channel open access:

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/67695


The structural validity of the Lower extremity functional scale (LEFS), the Visual analogue scale foot and ankle (VAS-FA), and the Western Ontario and McMaster Universities osteoarthritis index (WOMAC) has not been compared earlier in patients after foot and ankle surgery.

Altogether 165 previously operated patients completed the foot and ankle specific instruments, the 15D health-related quality of life (HRQoL) instrument, and general health (VAS).

The LEFS, the VAS-FA and the WOMAC had slight differences in their measurement properties. The VAS-FA had the best targeting and coverage. All three foot and ankle measures accounted for mobility and usual activities when compared to the different aspects of generic HRQoL.

The LEFS, the VAS-FA and the WOMAC have relatively similar psychometric properties among foot and ankle patients, yet the VAS-FA provides the best targeting and coverage.

Keywords: treatment outcomes; surgical treatment; feet; ankles; validation; validity

Free keywords: VAS-FA; LEFS; WOMAC; PROM; outcome; measures

Contributing organizations

Ministry reporting: Yes

Reporting Year: 2020

JUFO rating: 1

Last updated on 2021-17-09 at 16:20