Development and validation of a non-invasive imaging technique for measurement of dynamic musculoskeletal joint motion

摘要

The paper presented a rigorous validation for the non-invasive imaging technique for measurement of dynamic musculoskeletal joint motion. The MTS machine can move the knee in a known speed, therefore, the exact speed and moving distance could be used as gold standards. For complicated 6DOF flexion-extension, we compared the dual fluoroscopic imaging technique with an existing 3D RSA technique in determination of dynamic 6DOF knee kinematics.nThis validation demonstrated that the moving knee positions and velocities can be accurately determined using the combined fluoroscopic and MR imaging technique. Therefore, this imaging method, when combined with 3D cartilage models, can be used to determine in-vivo dynamic cartilage deformation and provide a powerful tool for investigation of mechanisms of joint degeneration and improvement of surgical treatments for diseased joints.(Acknowledgment: Supported by NIH R01-AR052408.)