The biomechanics analysis for dynamic hip screw on osteoporotic and unstable femoral fracture

H. F. Wu, K. A. Lai, M. T. Huang, H. S. Chen, K. C. Chung, F. S. Yang

研究成果: Conference contribution

摘要

Osteoporotic patient has low bone quality and often occur unstable fracture. Conventional dynamic hip screw method can provide good result on stable femoral fracture. On the unstable femoral fracture, it has high failure rate. The purpose is to investigate the biomechanics analysis for dynamic hip Screw on osteoporotic and unstable proximal femoral fracture. The specific aims are to :(1) develop the osteoporotic and unstable proximal femoral fractures model,(2) investigate the influence of lesser trochanter fixation on stress and deformation distribution. This study total reviewed 130 patients treated by dynamic hip screw surgery and classified the fracture according to AO system. Statistic data showed that the common unstable femoral proximal fracture type is A2.1 (AO classification). The osteoporotic femur model of finite element method (FEM) was developed from the CT image of 80 years patient. Loading condition assigned single-leg stance. The FEM analytic result show the lesser trochanter has a moment of rotation in dynamic fixation without wires fixation condition. Using wires to fix the lesser trochanter can enhance the structure stiffness and reduce the stress distribution in unstable intertrochanter fracture (A2.1 type).

原文English
主出版物標題5th Kuala Lumpur International Conference on Biomedical Engineering 2011, BIOMED 2011
頁面225-228
頁數4
DOIs
出版狀態Published - 2011 七月 11
事件5th Kuala Lumpur International Conference on Biomedical Engineering, BIOMED 2011, Held in Conjunction with the 8th Asian Pacific Conference on Medical and Biological Engineering, APCMBE 2011 - Kuala Lumpur, Malaysia
持續時間: 2011 六月 202011 六月 23

出版系列

名字IFMBE Proceedings
35 IFMBE
ISSN(列印)1680-0737

Other

Other5th Kuala Lumpur International Conference on Biomedical Engineering, BIOMED 2011, Held in Conjunction with the 8th Asian Pacific Conference on Medical and Biological Engineering, APCMBE 2011
國家Malaysia
城市Kuala Lumpur
期間11-06-2011-06-23

    指紋

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Biomedical Engineering

引用此

Wu, H. F., Lai, K. A., Huang, M. T., Chen, H. S., Chung, K. C., & Yang, F. S. (2011). The biomechanics analysis for dynamic hip screw on osteoporotic and unstable femoral fracture. 於 5th Kuala Lumpur International Conference on Biomedical Engineering 2011, BIOMED 2011 (頁 225-228). (IFMBE Proceedings; 卷 35 IFMBE). https://doi.org/10.1007/978-3-642-21729-6_60