Abstract
[Purpose] The Japanese Orthopaedic Association Hip-Disease Evaluation Questionnaire (JHEQ) is used for the objective assessment of hip diseases. However, there are few reports concerning the physical function factors influencing the JHEQ total score. Accordingly, this study investigated physical functions affecting the JHEQ score at 6 months after total hip arthroplasty (THA). [Subjects and Methods] The subjects were 26 first-time THA patients. Before and at 6 months post-THA, the JHEQ score and knee extension strength (KES), hip abduction strength, range of motion (ROM), and gait speed, contributors to physical function, were analyzed using multiple regression analysis. [Results] The factors affecting the JHEQ total score at 6 months post-THA were: 6 months post-THA KES, the rate of change of KES, gait speed, and hip abduction ROM. [Conclusion] For improving patients’ quality of life, strengthening of KES, and rehabilitation focusing on raising gait speed are important.
