Association Between Multimorbidity and Walking Independence After Total Knee Arthroplasty in Adults Aged ≥80 Years: A Retrospective Cohort Study

Makoto Asaeda, Yukio Mikami, Atsuo Nakamae, Tomoyuki Nakasa, Akinori Nekomoto, Noriaki Maeda, Kiyo Ueda, Takeya Araki, Nobuo Adachi, Division of Rehabilitation, Department of Clinical Practice and Support, Hiroshima University Hospital, Department of Rehabilitation Medicine, Hiroshima University Hospital, Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Faculty of Sport Sciences, School of Sport and Sciences, Waseda University

Geriatric Orthopaedic Surgery & Rehabilitation

Published online on May 05, 2026

Abstract

Geriatric Orthopaedic Surgery & Rehabilitation, Volume 17, January-December 2026.
BackgroundThe demand for total knee arthroplasty, an established treatment for advanced knee osteoarthritis, is anticipated to increase among individuals aged ≥80 years. Given the high prevalence of multimorbidity among older adults in Japan, in this ...