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BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI<br />

Publicat de<br />

<strong>Universitatea</strong> <strong>Tehnică</strong> „Gheorghe Asachi“ <strong>din</strong> Iaşi,<br />

Tomul LVIII (LXII), Fasc. 4, 2012<br />

Secţia<br />

CONSTRUCŢII DE MAŞINI<br />

TIBIAL MALLEOLUS FRACTURE: VIRTUAL MODEL AND<br />

ANALYSIS WITH THE FINITE ELEMENT METHOD<br />

BY<br />

VICTOR COTOROS and EUGEN MERTICARU ∗<br />

Received July 20, 2012<br />

Accepted for publication: November 10, 2012<br />

“Gheorghe Asachi” Technical University of Iaşi,<br />

Department of Mechanisms Theory and Robotics<br />

Abstract. The paper presents virtual models of the tibial malleolus fracture<br />

and the analysis of the state of stress for three orthopedical surgical procedures.<br />

Three osteosynthesis assemblies are CAD modeled and the models are subjected<br />

to finite element analysis (FEA). The states of stress for each osteosynthesis<br />

assembly are compared one to each other, resulting the most suitable surgical<br />

procedure.<br />

Key words: biomechanics, tibia, virtual model, strength, stress, finite<br />

element.<br />

1. Introduction<br />

Virtual simulation of the mechanical behavior of an osteosynthesis<br />

assembly provides to the surgeon useful information regar<strong>din</strong>g the most suitable<br />

surgical techniques, being possible multiple analysis by the multitude of<br />

simulation variants, both from technical and surgical point of view.<br />

One of the most used methods of analysis of the state of stress and<br />

deformation into a virtual assembly of bodies is the finite element method<br />

(FEA). The idea laying to the base of the finite element method is that the<br />

irregular geometrical structure is partitioned in many parts with regular<br />

geometry, the so called finite elements, whose properties can be expressed by<br />

∗ Correspon<strong>din</strong>g author: e-mail: emertica@mail.tuiasi.ro

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