Implanted Knee Kinematics Analysis by 2-D/3-D Registration Using Particle Filter
Kento Morita, Manabu Nii, Fumiaki Imamura, Takatoshi Morooka, Shinichi Yoshiya, Syoji Kobashi · 2016
Osteoarthrosis is a kind of knee disease, and it decreases the patients' Quality of Life. The total knee arthroplasty surgery replaces the damaged knee joint with artificial knee joint. The 3-D kinematics of implanted knee is effective to diagnose and improve the function of the artificial knee joint. The still image analysis based conventional knee kinematics analysis methods do not provide the smooth knee kinematics. This paper proposes the knee kinematics analysis method using particle filter. The experimental results showed that the proposed method successfully estimated the 3-D implanted knee kinematics, and the distance transformation based new likelihood improved the applicability.