EPJ Web of Conferences
Volume 6, 2010ICEM 14 – 14th International Conference on Experimental Mechanics
|Number of page(s)||8|
|Section||Biomaterials, Bio-compatible Materials and Biomechanics|
|Published online||10 June 2010|
A biomechanical analysis of the Ilizarov external fixator
School of Applied Mathematical and Physical Sciences, Dept. of
Mechanics, National Technical University of Athens,
5 Heroes of Polytechnion
Avenue, 157 73
Zografou, Athens, Greece
2 Laboratory for the Research of the Musculoskeletal System (LRMS), University of Athens, KAT Hospital, Kifissia, Athens, Greece
a e-mail : email@example.com
The objective of the present study is the construction of a reliable numerical model of the standard Ilizarov fixator that will permit a detailed parametric investigation of various factors influencing the effectiveness of the technique. Mechanical tests of a standard Ilizarov frame were performed under axial and torsional loads. To eliminate the pretension loss due to wire slippage metal nuts with M1.8 thread were manufactured. A numerical analysis followed based on the Finite Element Method. The model constructed simulated accurately all the geometrical details of the experimental model, the load application mode (axial and torsional) and the mechanical characteristics of the materials used to assemble the frame. Comparison of the predictions of the model with the respective experimental data yields excellent agreement for the case of tension and rather satisfactory one for torsion.
© Owned by the authors, published by EDP Sciences, 2010
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