Purpose: Therapies for treatment of rheumatoid arthritis (RA) have shown significant improvement since the introduction of biological agents (BIO) in 2003 and Janus kinase inhibitors (JAKi) in 2013 in Japan. The rate of orthopedic surgery, including total hip arthroplasties (THA), may reflect trends in disease severity, management, and health outcomes.
Materials And Methods: An analysis of data on THAs performed at our institutes for treatment of RA with BIO or non-BIO therapy from 2004 to 2021 was conducted.