Experimental validation of intact and implanted distal femur finite element models

被引：39

作者：

Completo, A.

Fonseca, F.

Simoes, J. A. ^{[1
]}

机构：

[1] Univ Aveiro, Dept Engn Mecan, P-3810193 Aveiro, Portugal

[2] Univ Beira Interior, Fac Ciencias Saude, Covilha, Portugal

来源：

JOURNAL OF BIOMECHANICS | 2007年 / 40卷 / 11期

关键词：

distal femur; knee prosthesis; composite femur; finite-element analysis; strain gauge measurements;

D O I：

10.1016/j.jbiomech.2006.11.012

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 [生物物理学];

摘要：

Four finite element (FE) models of intact and distal femur of knee replacements were validated relative to measured bone strains. FE models of linear tetrahedrons were used. Femoral replacements with cemented stemless, cemented and noncemented femoral sterns of the PFC Sigma Modular Knee System were analyzed. Bone strains were recorded at ten locations on the cortex. The magnitude of the FE bone strains corresponded to the mean measured strains, with an overall agreement of 10%. Linear regression between the FE and mean experimental strains produced slopes between 0.94 and 1.06 and R, values between 0.92 and 0.99. RSME values were less than 12%. The FE models were able to adequately replicate the mechanical behavior of distal femur reconstructions. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：2467 / 2476

页数：10

共 33 条

[1]

Finite element analysis of a femoral retrograde intramedullary nail subject to gait loading [J].