Abstract
| Original language | English |
|---|---|
| Article number | 021002 |
| Journal | Journal Of Biomechanical Engineering |
| Volume | 132 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2010 |
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Finite element modeling of resurfacing hip prosthesis: estimation of accuracy through experimental validation. / Taddei, F.; Martelli, S.; Gill, H. S.; Cristofolini, L.; Viceconti, M.
In: Journal Of Biomechanical Engineering, Vol. 132, No. 2, 021002, 2010.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Finite element modeling of resurfacing hip prosthesis: estimation of accuracy through experimental validation
AU - Taddei, F.
AU - Martelli, S.
AU - Gill, H. S.
AU - Cristofolini, L.
AU - Viceconti, M.
PY - 2010
Y1 - 2010
N2 - Metal-on-metal hip resurfacing is becoming increasingly popular, and a number of new devices have been recently introduced that, in the short term, appear to have satisfactory outcome but many questions are still open on the biomechanics of the resurfaced femur. This could be investigated by means of finite element analysis, but, in order to be effective in discerning potential critical conditions, the accuracy of the models' predictions should be assessed. The major goal of this study was to validate, through a combined experimental-numerical study, a finite element modeling procedure for the simulation of resurfaced femurs. In addition, a preliminary biomechanical analysis of the changes induced in the femoral neck biomechanics by the presence of the device was performed, under a physiologic range of hip joint reaction directions. For this purpose, in vitro tests and a finite element model based on the same specimen were developed using a cadaver femur. The study focused on the Conserve Plus, one of the most common contemporary resurfacing designs. Five loading configurations were identified to correspond to the extremes of physiological directions for the hip joint. The agreement between experimental measurements and numerical predictions was good both in the prediction of the femoral strains (R(2)>0.9), and in the prosthesis micromotions (error
AB - Metal-on-metal hip resurfacing is becoming increasingly popular, and a number of new devices have been recently introduced that, in the short term, appear to have satisfactory outcome but many questions are still open on the biomechanics of the resurfaced femur. This could be investigated by means of finite element analysis, but, in order to be effective in discerning potential critical conditions, the accuracy of the models' predictions should be assessed. The major goal of this study was to validate, through a combined experimental-numerical study, a finite element modeling procedure for the simulation of resurfaced femurs. In addition, a preliminary biomechanical analysis of the changes induced in the femoral neck biomechanics by the presence of the device was performed, under a physiologic range of hip joint reaction directions. For this purpose, in vitro tests and a finite element model based on the same specimen were developed using a cadaver femur. The study focused on the Conserve Plus, one of the most common contemporary resurfacing designs. Five loading configurations were identified to correspond to the extremes of physiological directions for the hip joint. The agreement between experimental measurements and numerical predictions was good both in the prediction of the femoral strains (R(2)>0.9), and in the prosthesis micromotions (error
UR - http://www.scopus.com/inward/record.url?scp=77953522728&partnerID=8YFLogxK
UR - http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=20370239
UR - http://dx.doi.org/10.1115/1.4000065
U2 - 10.1115/1.4000065
DO - 10.1115/1.4000065
M3 - Article
VL - 132
JO - Journal Of Biomechanical Engineering
JF - Journal Of Biomechanical Engineering
SN - 0148-0731
IS - 2
M1 - 021002
ER -