Predicting muscle patterns for hemimandibulectomy models

Ian Stavness, Alan G. Hannam, John E. Lloyd and Sidney Fels

Computer Methods in Biomechanics and Biomedical Engineering, 2010, vol. 13, issue 4, 483-491

Abstract: Deficits in movement and bite force are common in patients following segmental resection of the mandible consequent to oral cancer or injury. We have previously developed a dynamic model to analyse the biomechanics of an ungrafted segmental jaw resection with unilateral muscle and joint loss and post-surgical scarring. Here, we describe an inverse-modelling algorithm for automatically predicting muscle activations in the model for prescribed jaw movement and bite-force production. We present the results of simulations that postulate combined muscle activation patterns that could theoretically be used by patients to overcome post-surgical deficits. Such predictions could be the basis for future muscle retraining in clinical cases.

Date: 2010
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DOI: 10.1080/10255841003762034

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