Finite element analysis of hearing improvement of the stapes protheses with different materials

HUANG Xin-sheng YAO Wen-juan△ FU Li-jie XIE Xiao-feng LIU Jun-zhen LIN Jiang NIE Xi-lin

Fudan University Journal of Medical Sciences ›› 2008, Vol. 35 ›› Issue (6) : 815-0.

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Fudan University Journal of Medical Sciences ›› 2008, Vol. 35 ›› Issue (6) : 815-0.
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Finite element analysis of hearing improvement of the stapes protheses with different materials

  • HUANG Xin-sheng1 YAO Wen-juan3△ FU Li-jie3 XIE Xiao-feng1 LIU Jun-zhen1 LIN Jiang2 NIE Xi-lin1

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Abstract

Objective To evaluate the hearing improvement of the stapes protheses with different material. Methods The CT data of ossicular chain from Zhongshan Hospital of Fudan University were digitalized and imported into PATRAN( a world class commercial software ) to build a 3 dimensional finite element model (FEM). Then the normal ossicular model was analyzed based on dynamic transmitting vibration principles and the calculation results were evaluated and compared with the results of previous studies. The ossicle models reconstructed by the stapes protheses with different materials were analyzed based on dynamic transmitting vibration principles and compared with the normal ossicular chain. Results The ossicle 3D model established in the present study is in accord with biological structure of the human. The frequency reaction curves obtained by the model proposed in the present study agreed well with the fresh temporal bone ones. The amplitude of titanium alloys stapes protheses was almost the same as that of the normal ones,the second is bioceramics,the last is stainless steel. Conclusion The hearing improvement of the stapes protheses with titanium alloys is the best,titanium alloys is a desirable material for stapes protheses.

Key words

ossicle / finite element method / prostheses / surgery effect / material

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HUANG Xin-sheng YAO Wen-juan△ FU Li-jie XIE Xiao-feng LIU Jun-zhen LIN Jiang NIE Xi-lin . Finite element analysis of hearing improvement of the stapes protheses with different materials [J]. Fudan University Journal of Medical Sciences, 2008, 35(6): 815-0
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