Biomechanical simulation for 3 layer calvarial prosthesis

Author

Park, Hun K. ; Dujovny, Manuel ; Lee, Jong B. ; Diaz, Fernando G.

Author_Institution

Biomech. Lab., Wayne State Univ., Detroit, MI, USA

Volume

3

fYear

2002

fDate

23-26 Oct. 2002

Firstpage

2515

Abstract

In this study, we conducted biomechanical study about behavior of large cranioplasty upon post-operative impact injury. Previous studies utilized a surface model of single layer with thickness of adult skull as 7 mm in the parietal bone. The finite element model used four-node and three-node quadrilateral shell elements. The overall model consists of 2,168 solid elements, and 4,736 shell elements. The dynamic behavior of the model was tested on the composite materials similar to normal adult skull in three layers (inner, outer and diploe layer). This structure resembles characteristics of calvarial implant differently upon impact. In order to overcome limitation of previous model, we designed a physiological model and analyzed dynamic behavior with new implant materials. The composite implant with two popular materials and middle polymer layer was evaluated and compared with bony material.

Keywords

biomechanics; biomedical materials; finite element analysis; impact (mechanical); orthopaedics; physiological models; prosthetics; 3 layer calvarial prosthesis; 7 mm; adult skull; biomechanical simulation; bony material; composite implant; cranial defects; dynamic behavior; impact injury; implant materials; polymer layer; surface model; Bones; Composite materials; Finite element methods; Implants; Injuries; Materials testing; Polymers; Prosthetics; Skull; Solid modeling;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology, 2002. 24th Annual Conference and the Annual Fall Meeting of the Biomedical Engineering Society EMBS/BMES Conference, 2002. Proceedings of the Second Joint

ISSN

1094-687X

Print_ISBN

0-7803-7612-9

Type

conf

DOI

10.1109/IEMBS.2002.1053403

Filename

1053403