Abstract Summary
The combination of model-based tracking techniques with biplane fluoroscopy for quantifying in vivo kinematics of various joints has evolved from initial, novel experimental applications, to more recent applications using clinical biplane fluoroscopy systems. The equipment and expertise needed to perform the data acquisitions and subsequent analysis have become more available in both research and clinical environments. Our team has explored the use of unmodified clinical biplane equipment for quantifying arthrokinematics of the shoulder, and have successfully validated the approach in vitro and applied the technique in manual wheelchair users with spinal cord injury.