Medical & biological engineering & computing
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Med Biol Eng Comput · Aug 2007
Simulation of an anterior spine instrumentation in adolescent idiopathic scoliosis using a flexible multi-body model.
Anterior spinal instrumentation is an alternative option to posterior instrumentation for surgical treatment of adolescent idiopathic scoliosis (AIS). However, optimal instrumentation configuration and strategies are not yet clearly defined. A biomechanical kinematic model using flexible mechanism was developed to study instrumentation strategies. ⋯ The validated model was used to find optimal instrumentation configurations for one patient prior to surgery. Six strategies were tested out of which the optimal one was identified while two were not recommended for surgery since screw forces exceeded published pullout forces. This study demonstrates the possibility to simulate anterior spine instrumentations.