Title: Calculation of membrane tension in selected sections of the pelvic floor
Authors: Ozog, Yves ×
Deprest, Jan
Haest, Kim
Claus, Filip
De Ridder, Dirk
Mazza, Edoardo #
Issue Date: Apr-2014
Publisher: Springer International
Series Title: International Urogynecology Journal vol:25 issue:4 pages:499-506
Abstract: A mathematical model to estimate membrane tensions (Mt) at the urogenital hiatus and midpelvis in patients with and without prolapse is proposed. For that purpose the complex structures of the pelvic floor were simplified and, based on assumptions concerning geometry and loading conditions, Laplace's law was used to calculate Mt. The pelvic cavity is represented by an ellipsoid in which the midpelvic and hiatal sections are described by an ellipse. The downwards forces within the pelvis (Fin) are in equilibrium with the support forces within its walls (Fw). Fin is the abdominal pressure (PABD) multiplied by the area A of the ellipse. The force inside the tissues (Fw) is distributed along the circumference of the ellipse C. The Mt can be approximated as Mt = (PABD.A)/C (N/m). Mt-α accounts for the angle α which describes tissue orientation with respect to the anatomical section and is calculated as Mt-α = Mt/sin(α).
ISSN: 0937-3462
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Organ Systems (+)
× corresponding author
# (joint) last author

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