Journal of Bionic Engineering

, Volume 15, Issue 3, pp 443–451 | Cite as

Finite Element Analysis of the Pelvis after Customized Prosthesis Reconstruction

  • Enchun Dong
  • Ling Wang
  • Taimoor Iqbal
  • Dichen Li
  • Yaxiong Liu
  • Jiankang He
  • Binghui Zhao
  • Yuan Li


Custom-made pelvic prostheses are normally employed to reconstruct the biomechanics of the pelvis for improving patient’s life quality. However, due to the large demand of biomechanical performance around the pelvic system, the customized prosthesis needs to be studied for its strength and stability. A hemi-pelvic finite element model, including a custom-made prosthesis and the surrounded main ligaments, was created to study the strength and stability of the system. Based on the developed finite element model, the relationship between the pre-stress of the screws and the biomechanical performance of the reconstructed pelvis was investigated. Results indicate that the pre-stress should not exceed 1000 N during surgery in order to prevent fatigue fractures from happening to screws. Moreover, four screws were removed from the pelvic system without affecting the fixing stability of the system, which provide surgical guidance for surgeons in terms of safety and fixation.


customized hemi-pelvic prosthesis finite element analysis biomechanics screws pre-stress 


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This work was supported by the Program of the National Natural Science Foundation of China (Grant Nos. 51205303 and 51323007), the Fundamental Research Funds for the Central Universities, the Research Fund for the Doctoral Program of Higher Education of China (RFDP), and the Program of International Scientific & Technological Cooperation and Exchange Planning of Shaanxi Province (Grant No. 2017KW-ZD-02).


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Copyright information

© Jilin University 2018

Authors and Affiliations

  • Enchun Dong
    • 1
  • Ling Wang
    • 1
  • Taimoor Iqbal
    • 1
  • Dichen Li
    • 1
  • Yaxiong Liu
    • 1
  • Jiankang He
    • 1
  • Binghui Zhao
    • 2
  • Yuan Li
    • 2
  1. 1.State Key Laboratory for Manufacturing System EngineeringXi’an Jiaotong UniversityXi’anChina
  2. 2.Tianjin Medical Device Supervision and Testing CenterTianjinChina

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