A morphological approach to the simulation of forearm motion.
Computer-based simulations support surgeons in preoperative planning of osteotomy and assessing the improvement of the forearm motion. To this end, an in-silico model of patient-specific forearm kinematics is required. In this paper we introduce a motion model of the forearm which is based on a patient's joint morphology, the form and shape of the joints. The morphology of the articulations is represented by 3-dimensional splines. In this way the gliding motion of the articulations is expressed analytically in a closed-form. Our algorithm was designed to work with available clinical planning data and requires minimal user interaction. This allows an integration in computer-aided planning systems that are operated by surgeons. The accuracy of the simulation results is verified via cadaver experiments.
Furnstahl
P
P
Computer Vision Laboratory, ETH Zurich, Zurich, Switzerland.
Schweizer
A
A
Nagy
L
L
Szekely
G
G
Harders
M
M
D000465:Algorithms; D001696:Biomechanical Phenomena; D001698:Biomedical Engineering; D002102:Cadaver; D003198:Computer Simulation; D005542:Forearm / Q000033:anatomy & histology* / Q000000981:diagnostic imaging / Q000502:physiology*; D006801:Humans; D021621:Imaging, Three-Dimensional; D008953:Models, Anatomic; D008954:Models, Biological; D009068:Movement / Q000502:physiology; D014057:Tomography, X-Ray Computed