Modelagem computacional da cavidade pélvica e comparação entre histerectomia total e subtotal: avaliação de tendência ao prolapso uterino

Abstract

This paper presents a study of the pelvic cavity, its constituent tissues and organs, and changes related to the region, such as hysterectomy, which is surgery to remove the uterus. There are variations of this procedure, either by type of cut or type of access, and the focus of this study is to compare the tendency to prolapse after a total and a subtotal hysterectomy. The computational model executed in Abaqus® counts the three pelvic organs, ligaments, fascia and muscles that constitute the pelvic floor. After the construction of the characteristic geometries of each procedure and replacement in the respective biomechanical models of the pelvic cavity, the comparison was made through simulations of the Valsalva maneuver and analysis of displacements of the structures. It was not possible to identify a greater tendency to prolapse of subtotal hysterectomy, and no other evidence of difference between types of hysterectomies was found.