title: Simplified Chinese version of the Forgotten Joint Score (FJS) for patients who underwent joint arthroplasty: cross-cultural adaptation and validation.
abstract: BACKGROUND
  The Forgotten Joint Score (FJS) is a newly developed health-related quality of life (HRQoL) questionnaire designed to evaluate the awareness after total knee arthroplasty (TKA). This study cross-culturally adapted and psychometrically validated a simplified Chinese version of the FJS (SC-FJS).
  
  
  METHODS
  Cross-cultural adaptation was performed according to the internationally recognized guidelines. One-hundred and fifty participants who underwent primary TKA were recruited in this study. Cronbach's α and intra-class correlations were used to determine reliability. Construct validity was analyzed by evaluating the correlations between SC-FJS and the Knee Injury and Osteoarthritis Outcome Score (KOOS) and the short form (36) health survey (SF-36).
  
  
  RESULTS
  Each of the 12 items was properly responded and correlated with the total items. SC-FJS had excellent reliability [Cronbach's α = 0.907, intra-class correlation coefficient (ICC) = 0.970, 95% CI 0.959-0.978). Elimination of any one item in all did not result in a value of Cronbach's α of <0.80. SC-FJS had a high correlation with symptoms (0.67, p < 0.001) and pain (0.60, p < 0.001) domains of KOOS and social functioning (0.66, p < 0.001) domain of SF-36, and it also moderately correlated with function in daily living (0.53, p < 0.001) and function in sport and recreation (0.40, p < 0.001) domains of KOOS, and physical subscale of SF-36 (0.49-0.53, p < 0.001) but had a low (r = 0.20) or not significant (p > 0.05) correlation with mental subscale of SF-36.
  
  
  CONCLUSIONS
  SC-FJS demonstrated excellent acceptability, internal consistency, reliability, and construct validity, which can be recommended for patients who underwent joint arthroplasty in Mainland China.
authors.affiliation: Joint Surgery and Sports Medicine Department, Changzheng Hospital, Second Military Medical University, No. 415, Fengyang Road, Huangpu District, Shanghai, 200003, People's Republic of China.
authors.forename: Shiqi
authors.initials: S
authors.lastname: Cao
authors.affiliation: Joint Surgery and Sports Medicine Department, Changzheng Hospital, Second Military Medical University, No. 415, Fengyang Road, Huangpu District, Shanghai, 200003, People's Republic of China.
authors.forename: Ning
authors.initials: N
authors.lastname: Liu
authors.affiliation: Joint Surgery and Sports Medicine Department, Changzheng Hospital, Second Military Medical University, No. 415, Fengyang Road, Huangpu District, Shanghai, 200003, People's Republic of China.
authors.forename: Wuxiang
authors.initials: W
authors.lastname: Han
authors.affiliation: Joint Surgery and Sports Medicine Department, Changzheng Hospital, Second Military Medical University, No. 415, Fengyang Road, Huangpu District, Shanghai, 200003, People's Republic of China.
authors.forename: Yunpeng
authors.initials: Y
authors.lastname: Zi
authors.affiliation: Joint Surgery and Sports Medicine Department, Changzheng Hospital, Second Military Medical University, No. 415, Fengyang Road, Huangpu District, Shanghai, 200003, People's Republic of China.
authors.forename: Fan
authors.initials: F
authors.lastname: Peng
authors.affiliation: Joint Surgery and Sports Medicine Department, Changzheng Hospital, Second Military Medical University, No. 415, Fengyang Road, Huangpu District, Shanghai, 200003, People's Republic of China.
authors.forename: Lexiang
authors.initials: L
authors.lastname: Li
authors.affiliation: Joint Surgery and Sports Medicine Department, Changzheng Hospital, Second Military Medical University, No. 415, Fengyang Road, Huangpu District, Shanghai, 200003, People's Republic of China.
authors.forename: Qiwei
authors.initials: Q
authors.lastname: Fu
authors.affiliation: Joint Surgery and Sports Medicine Department, Changzheng Hospital, Second Military Medical University, No. 415, Fengyang Road, Huangpu District, Shanghai, 200003, People's Republic of China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Chen
authors.affiliation: Joint Surgery and Sports Medicine Department, Changzheng Hospital, Second Military Medical University, No. 415, Fengyang Road, Huangpu District, Shanghai, 200003, People's Republic of China.
authors.forename: Weijie
authors.initials: W
authors.lastname: Zheng
authors.affiliation: Joint Surgery and Sports Medicine Department, Changzheng Hospital, Second Military Medical University, No. 415, Fengyang Road, Huangpu District, Shanghai, 200003, People's Republic of China. qianqr@163.com.
authors.forename: Qirong
authors.initials: Q
authors.lastname: Qian
mesh_terms: D000203:Activities of Daily Living / Q000523:psychology; D000368:Aged; D019645:Arthroplasty, Replacement, Knee / Q000009:adverse effects / Q000523:psychology; D044466:Asian People / Q000208:ethnology* / Q000523:psychology; D002681:China / Q000208:ethnology; D003431:Cross-Cultural Comparison; D005260:Female; D006306:Health Surveys / Q000592:standards*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010149:Postoperative Pain / Q000175:diagnosis / Q000208:ethnology / Q000523:psychology; D010865:Pilot Projects; D011788:Quality of Life / Q000523:psychology; D015203:Reproducibility of Results; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires / Q000592:standards
keywords: Arthroplasty; Forgotten Joint Score; Quality of life; Reliability; Validity