Title :
Finite element analysis of an acetabular trial implant
Author :
Levasseur, A. ; Petit, Y. ; Dansereau, M. ; Fernandes, J.C.
Author_Institution :
Imaging & Orthopaedic Res. Lab., Montreal, QC, Canada
fDate :
Aug. 31 2010-Sept. 4 2010
Abstract :
A variable diameter trial liner (VDTL) was designed to reduce the costs related to cleaning, sterilisation and storage of surgical instruments used for total hip arthroplasty. The purpose of this study was to develop a finite element model to evaluate the mechanical behavior of the VDTL before manufacturing of a functional prototype. The finite element analysis consists to identify the maximum stresses applied on the VDTL and compare these values to the yield strength of stainless steel 17-4 (540 MPa) to asses if the VDTL will resist to loading conditions similar to the ones occurring during the surgical procedure. The results demonstrated the need to improve the mechanical strength of the current concept of the VDTL. These results will serve as indications for upcoming design refinements.
Keywords :
biomedical materials; finite element analysis; physiological models; prosthetics; stainless steel; surgery; yield strength; VDTL; acetabular trial implant; finite element analysis; maximum stresses; stainless steel 17-4; total hip arthroplasty; variable diameter trial liner; yield strength; Finite element methods; Hip; Load modeling; Loading; Steel; Stress; Surgery; Acetabulum; Finite Element Analysis; Hip Prosthesis; Humans; Materials Testing;
Conference_Titel :
Engineering in Medicine and Biology Society (EMBC), 2010 Annual International Conference of the IEEE
Conference_Location :
Buenos Aires
Print_ISBN :
978-1-4244-4123-5
DOI :
10.1109/IEMBS.2010.5627680