A novel adaptive algorithm for 3D finite element analysis to model extracortical bone growth

被引：13

作者：

Cheong, Vee San ^{[1
]}

Blunn, Gordon W. ^{[1
]}

Coathup, Melanie J. ^{[1
]}

Fromme, Paul ^{[2
]}

机构：

[1] Univ Coll London, Inst Orthopaed & Musculoskeletal Sci, Royal Natl Orthopaed Hosp, John Scales Ctr Biomed Engn, Stanmore, Middx, England

[2] UCL, Dept Mech Engn, London, England

来源：

COMPUTER METHODS IN BIOMECHANICS AND BIOMEDICAL ENGINEERING | 2018年 / 21卷 / 02期

关键词：

External bone remodelling; segmental prosthesis; osseointegration; TISSUE DIFFERENTIATION; SIMULATION; PREDICTIONS; IMPLANT; OPTIMIZATION; REPLACEMENTS; ADAPTATION; PROSTHESES; INTERFACE; STABILITY;

D O I：

10.1080/10255842.2018.1425997

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

Extracortical bone growth with osseointegration of bone onto the shaft of massive bone tumour implants is an important clinical outcome for long-term implant survival. A new computational algorithm combining geometrical shape changes and bone adaptation in 3D Finite Element simulations has been developed, using a soft tissue envelope mesh, a novel concept of osteoconnectivity, and bone remodelling theory. The effects of varying the initial tissue density, spatial influence function and time step were investigated. The methodology demonstrated good correspondence to radiological results for a segmental prosthesis.

引用

页码：129 / 138

页数：10

共 38 条

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