(Jörg Eschweiler, PhD, Head of the group "Biomechanical Modelling and Simulation", Chair of Medical Engineering at the Helmholtz-Institute Aachen, RWTH Aachen University, Germany, 08. February, 2017 )
Patient-specific multi body simulation models are potentially valuable tools for surgeons in pre- and intraoperative planning of implant choice and alignment. An enhanced musculoskeletal biomechanical model of the wrist joint is presented. The developed computational model features the two forearm bones radius and ulna, the eight wrist bones, the five metacarpal bones and a soft tissue apparatus. A comprehensive ligamentous apparatus was implemented allowing the investigation of ligament function. It can be easily personalized by patient specific image information. The model was validated by literature information as well as by own experimental passive in vitro motion analysis of eight cadaver specimens. The model enables simulation of individual wrist motion and predicts trends correctly in case of changing kinematics.
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