Triangular Mechanical Structure of the Proximal Femur

Autor: Gaoxiang Xu, Jiantao Li, Cheng Xu, Dou Xiong, Hua Li, Daofeng Wang, Wupeng Zhang, Hao Zhang, Licheng Zhang, Peifu Tang
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Orthopaedic Surgery, Vol 14, Iss 11, Pp 3047-3060 (2022)
Druh dokumentu: article
ISSN: 1757-7861
1757-7853
DOI: 10.1111/os.13498
Popis: Objective The mechanical high modulus structure of the proximal femur could guide clinical surgical treatment and instrument design of proximal femoral fractures. The purpose of this study is to analyze and verify the mechanical structure of the proximal femur. Methods A total of 375 patients with intertrochanteric fractures were imaged using computed tomography (CT) scans. Patients were grouped according to age and sex. Cortical and medullary cavity parameters (cortical thickness [CTh], cortical mean density [CM], upper‐lower diameter length [ULL], and medial‐lateral diameter length [MLL]) were measured at eight planes. Six proximal femoral finite element models of different sexes and ages were constructed. To verify the measurement results, Abaqus was used to implement the force load to describe the von Mises stress distribution, and the maximum von Mises stress values of each wall of the proximal femur were compared. Results The CTh values of the lower and upper walls were higher than those of the anterior and posterior walls of the femoral neck (p
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