Dr. Takai is a Professor in the Department of Orthopaedic Surgery at Teikyo University, Tokyo, Japan. Dr. Takai is one of the pioneers in the field of total knee arthroplasty for Asian people. His research focuses on knee kinematics after total knee arthroplasty. His recent work centers on kneeling and deep knee flexion after total knee arthroplasty.
Dr. Takai was also the A.B. Ferguson Visiting Professor at the Musculoskeletal Research Center(MSRC) at the University of Pittsburgh in September 2001.