Dynamic simulations of a total knee replacement: assessing the performance envelope using patient specific loads
Dynamic simulations of a total knee replacement: assessing the performance envelope using patient specific loads
A three-dimensional finite element (FE) knee model was developed to predict the performance envelope of a knee prosthesis for a group of patients. Level gait knee joint forces of seven healthy patients were used to drive the FE model. The only kinematic input used was the flexion-extension (F-E) angles. The parameters examined include the anterior-posterior (A-P) displacements, internalexternal (I-E) rotations and the polyethylene (PE) stresses. A performance envelope was obtained for each of the parameters of interest. The maximum femoral component posterior displacement was 3.6 mm and the maximum anterior displacement was 4.8 mm. The highest internal rotation of the femoral component was 4.3° while
the highest external rotation was approximately 7°. The highest
maximum von Mises stress was 22.1 MPa.
725-726
Tan, Kheng H.
b0654570-f353-4388-9606-3700fddd7fa5
Costigan, Patrick
006d0634-2cab-4a39-9c00-a6d1f8db6eb0
Taylor, Mark
e368bda3-6ca5-4178-80e9-41a689badeeb
2003
Tan, Kheng H.
b0654570-f353-4388-9606-3700fddd7fa5
Costigan, Patrick
006d0634-2cab-4a39-9c00-a6d1f8db6eb0
Taylor, Mark
e368bda3-6ca5-4178-80e9-41a689badeeb
Tan, Kheng H., Costigan, Patrick and Taylor, Mark
(2003)
Dynamic simulations of a total knee replacement: assessing the performance envelope using patient specific loads.
2003 Summer Bioengineering Conference, Key Biscayne, USA.
24 - 28 Jun 2003.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
A three-dimensional finite element (FE) knee model was developed to predict the performance envelope of a knee prosthesis for a group of patients. Level gait knee joint forces of seven healthy patients were used to drive the FE model. The only kinematic input used was the flexion-extension (F-E) angles. The parameters examined include the anterior-posterior (A-P) displacements, internalexternal (I-E) rotations and the polyethylene (PE) stresses. A performance envelope was obtained for each of the parameters of interest. The maximum femoral component posterior displacement was 3.6 mm and the maximum anterior displacement was 4.8 mm. The highest internal rotation of the femoral component was 4.3° while
the highest external rotation was approximately 7°. The highest
maximum von Mises stress was 22.1 MPa.
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Published date: 2003
Venue - Dates:
2003 Summer Bioengineering Conference, Key Biscayne, USA, 2003-06-24 - 2003-06-28
Identifiers
Local EPrints ID: 22650
URI: http://eprints.soton.ac.uk/id/eprint/22650
PURE UUID: 9a2320f3-3b61-4f3d-8b39-aba53d9a9a83
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Date deposited: 02 Jun 2006
Last modified: 11 Dec 2021 14:39
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Contributors
Author:
Kheng H. Tan
Author:
Patrick Costigan
Author:
Mark Taylor
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