The maximal gait speed is a simple and useful prognostic indicator for functional recovery after total hip arthroplasty. - Shibuya, Manaka; Nanri, Yuta; Kamiya, Kentaro; Fukushima, Kensuke; Uchiyama, Katsufumi; Takahira, Naonobu; Takaso, Masashi; Fukuda, Michinari; Matsunaga, Atsuhiko (BMC Musculoskeletal Disorders, 2020)