Validation study of the Forgotten Joint Score-12 as a universal patient-reported outcome measure

Publication

Validation study of the Forgotten Joint Score-12 as a universal patient-reported outcome measure

Journal Paper/Review - Jul 7, 2015

Matsumoto Mikio, Baba Tomonori, Homma Yasuhiro, Kobayashi Hideo, Ochi Hironori, Yuasa Takahito, Behrend Henrik, Kaneko Kazuo

Citation

Matsumoto M, Baba T, Homma Y, Kobayashi H, Ochi H, Yuasa T, Behrend H, Kaneko K. Validation study of the Forgotten Joint Score-12 as a universal patient-reported outcome measure. Eur J Orthop Surg Traumatol 2015

Type

Journal Paper/Review (English)

Journal

Eur J Orthop Surg Traumatol 2015

Publication Date

Jul 7, 2015

Issn Electronic

1633-8065

Brief description/objective

PURPOSE
The Forgotten Joint Score-12 (FJS-12) is for patients to forget their artificial joint and is reportedly a useful patient-reported outcome tool for artificial joints. The purpose of this study was to determine whether the FJS-12 is as useful as the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) or the Japanese Orthopaedic Association Hip Disease Evaluation Questionnaire (JHEQ) in Japan.

METHODS
All patients who visited our hospital's hip joint specialists following unilateral THA from August 2013 to July 2014 were evaluated. Medical staff members other than physicians administered three questionnaires. Items evaluated were (1) the reliability of the FJS-12 and (2) correlations between the FJS-12 and the total and subscale scores of the WOMAC or JHEQ.

RESULTS
Of 130 patients, 22 were excluded. Cronbach's α coefficient was 0.97 for the FJS-12. The FJS-12 showed a significantly lower score than the WOMAC or JHEQ (p < 0.01). The FJS-12 was moderately correlated with the total WOMAC score (r = 0.522) and its subscale scores for "stiffness" (r = 0.401) and "function" (r = 0.539) and was weakly correlated with the score for "pain" (r = 0.289). The FJS-12 was favorably correlated with the total JHEQ score (r = 0.686) and its subscale scores (r = 0.530-0.643).

CONCLUSION
The FJS-12 was correlated with and showed reliability similar to that of the JHEQ and WOMAC. The FJS-12, which is not affected by culture or lifestyle, may be useful in Japan.