Finite element analysis of proximal femur bionic nail for treating intertrochanteric fractures in osteoporotic bone

Xiang Shen, Hao Guo, Guangxin Chen, Hongyu Lian, Wei Guo, Zhen Wang, Zihao Xu and Zitao Li

Computer Methods in Biomechanics and Biomedical Engineering, 2025, vol. 28, issue 13, 1991-2002

Abstract: This study compared the biomechanical characteristics of proximal femur bionic nail (PFBN) and proximal femoral nail antirotation (PFNA) in treating osteoporotic femoral intertrochanteric fractures using finite element analysis. Under similar bone density, the PFBN outperforms the PFNA in maximum femoral displacement, internal fixation displacement, stress distribution in the femoral head and internal fixation components, and femoral neck varus angle. As the bone density decreases, the PFBN’s biomechanical advantages over PFNA become more pronounced. This finding suggests that the PFBN is superior for treating osteoporotic intertrochanteric femoral fractures.

Date: 2025
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DOI: 10.1080/10255842.2024.2355492

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