Zhen-Yu Jia1, Chen Zhang1, Yuming Zou1, Xuan Huang2, Wei-Dong Xu3. 1. Department of Orthopedics, Changhai Hospital, Second Military Medical University, Shanghai, China. 2. Department of Orthopedics, Changhai Hospital, Second Military Medical University, Shanghai, China. 9342825@qq.com. 3. Department of Orthopedics, Changhai Hospital, Second Military Medical University, Shanghai, China. ch_prof_xu@163.com.
Abstract
PURPOSE: To cross-culturally adapt and validate the International Knee Documentation Committee Subjective Knee Form to Simplified Chinese (SC-IKDC-SKF). METHODS: The original version was translated and cross-culturally adapted into Simplified Chinese according to standard guidelines. A total of 103 patients enrolled in our research. Each participant was asked to complete three instruments including the SC-IKDC-SKF, the Lysholm knee score, and the Short Form-36 (SF-36). Each participant was asked to complete the SC-IKDC-SKF twice with an interval of 7 days. A portion of the participants (n = 51) finished the SC-IKDC-SKF a third time with an interval of 12 months after arthroscopic treatment. Psychometric assessments included internal consistency, test-retest reliability, content and construct validity, and responsiveness. RESULTS: Strong internal consistency was proved with Cronbach's α = 0.92. The intraclass correlation coefficient reached 0.94, indicating high test-retest reliability. No ceiling or floor effect was observed. Compared with the Lysholm knee score and the subscales of SF-36, good convergent and divergent validity of the SC-IKDC-SKF were demonstrated. The standard response mean was 2.39 and the effect size was 1.33, indicating high responsiveness. CONCLUSIONS: The SC-IKDC-SKF was demonstrated to be a reliable, valid and responsive instrument for evaluating knee functions and symptoms of patients with knee pathology in mainland China. LEVEL OF EVIDENCE: II.
PURPOSE: To cross-culturally adapt and validate the International Knee Documentation Committee Subjective Knee Form to Simplified Chinese (SC-IKDC-SKF). METHODS: The original version was translated and cross-culturally adapted into Simplified Chinese according to standard guidelines. A total of 103 patients enrolled in our research. Each participant was asked to complete three instruments including the SC-IKDC-SKF, the Lysholm knee score, and the Short Form-36 (SF-36). Each participant was asked to complete the SC-IKDC-SKF twice with an interval of 7 days. A portion of the participants (n = 51) finished the SC-IKDC-SKF a third time with an interval of 12 months after arthroscopic treatment. Psychometric assessments included internal consistency, test-retest reliability, content and construct validity, and responsiveness. RESULTS: Strong internal consistency was proved with Cronbach's α = 0.92. The intraclass correlation coefficient reached 0.94, indicating high test-retest reliability. No ceiling or floor effect was observed. Compared with the Lysholm knee score and the subscales of SF-36, good convergent and divergent validity of the SC-IKDC-SKF were demonstrated. The standard response mean was 2.39 and the effect size was 1.33, indicating high responsiveness. CONCLUSIONS: The SC-IKDC-SKF was demonstrated to be a reliable, valid and responsive instrument for evaluating knee functions and symptoms of patients with knee pathology in mainland China. LEVEL OF EVIDENCE: II.
Authors: Xin Zhou; Qi Liu; Tao Liang; Ping Xu; Yang Liu; Shijie Fu; Guoyou Wang; Lei Zhang Journal: Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi Date: 2021-06-15