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  • Title: Mechanical response of the herniated human abdomen to the placement of different prostheses.
    Author: Hernández-Gascón B, Peña E, Grasa J, Pascual G, Bellón JM, Calvo B.
    Journal: J Biomech Eng; 2013 May; 135(5):51004. PubMed ID: 24231960.
    Abstract:
    This paper describes a method designed to model the repaired herniated human abdomen just after surgery and examine its static mechanical response to the maximum intra-abdominal pressure provoked by a physiological movement (standing cough). The model is based on the real geometry of the human abdomen bearing a large incisional hernia with several anatomical structures differentiated by MRI. To analyze the outcome of hernia repair, the surgical procedure was simulated by modeling a prosthesis placed over the hernia. Three surgical meshes with different mechanical properties were considered: an isotropic heavy-weight mesh (Surgipro®), a slightly anisotropic light-weight mesh (Optilene®), and a highly anisotropic medium-weight mesh (Infinit®). Our findings confirm that anisotropic implants need to be positioned such that the most compliant axis of the mesh coincides with the craneo-caudal direction of the body.
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