Biomechanical properties of vaginal tissue in women with pelvic organ prolapse.

Background/aims: To compare biomechanical properties of vaginal tissues between women with and without pelvic organ prolapse (POP) and investigate factors that may influence these properties.

Methods: Forty patients submitted to POP surgery and 15 non-POP cadavers were evaluated. The tissue was excised from anterior and posterior middle third vagina.

The influence of muscles activation on the dynamical behaviour of the tympano-ossicular system of the middle ear.

The human ear is a complex biomechanical system and is divided into three parts: outer, middle and inner ear. The middle ear is formed by ossicles (malleus, incus and stapes), ligaments, muscles and tendons, which transfers sound vibrations from the eardrum to the inner ear, linking with mastoid and Eustachian tube. In this work, a finite element modelling of the tympano-ossicular system of the middle ear was developed.

Uniaxial mechanical behavior of the human female bladder.

Introduction And Hypothesis: The objective of the present study was to investigate the tensile biomechanical properties of the human female bladder.

Methods: Tissue samples were obtained from 13 cadavers without pelvic floor dysfunctions. We performed uniaxial tensile tests to measure the stiffness and maximum stress of the bladder tissue.