Modeling the contraction of the pelvic floor muscles

Fernanda Sofia Quintela da Silva Brandão, Marco Paulo Lages Parente, Paulo Alexandre Gomes Gonçalves Rocha, Maria Teresa da Quinta e Costa de Mascarenhas Saraiva, Isabel Maria Amorim Pereira Ramos and Renato Manuel Natal Jorge

Computer Methods in Biomechanics and Biomedical Engineering, 2016, vol. 19, issue 4, 347-356

Abstract: We performed numerical simulation of voluntary contraction of the pelvic floor muscles to evaluate the resulting displacements of the organs and muscles. Structures were segmented in Magnetic Resonance (MR) images. Different material properties and constitutive models were attributed. The Finite Element Method was applied, and displacements were compared with dynamic MRI findings. Numerical simulation showed muscle magnitude displacement ranging from 0 to 7.9 mm, more evident in the posterior area. Accordingly, the anorectum moved more than the uterus and bladder. Dynamic MRI showed less 0.2 mm and 4.1 mm muscle dislocation in the anterior and cranial directions, respectively. Applications of this model include evaluating muscle impairment, subject-specific mesh implant planning, or effectiveness of rehabilitation.

Date: 2016
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DOI: 10.1080/10255842.2015.1028031

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