The aim of the study was to develop a hip joint FEM model considering computed dynamic 3D loads during the gait, for the calculation of the stress map on the acetabular cup. The proposed model consists of a FEM of the hard (metal head) on soft (UHMWPE cup) hip bio-bearing in which the 3D loads acting on the joint were calculated by using an inverse dy- namic lower limb musculoskeletal model. The model shows a good numerical stability and with moderate calculation time allows to obtain the stress distribution on the cup in agree- ment in terms of stress values with available data in literature, encouraging the authors to- wards the development of a comprehensive model to calculate the implant wear.

FEM analysis of metal on UHMWPE total hip prosthesis during normal walking cycle

RUGGIERO, Alessandro;MEROLA, MASSIMILIANO;DE SIMONE, MARCO CLAUDIO
2017-01-01

Abstract

The aim of the study was to develop a hip joint FEM model considering computed dynamic 3D loads during the gait, for the calculation of the stress map on the acetabular cup. The proposed model consists of a FEM of the hard (metal head) on soft (UHMWPE cup) hip bio-bearing in which the 3D loads acting on the joint were calculated by using an inverse dy- namic lower limb musculoskeletal model. The model shows a good numerical stability and with moderate calculation time allows to obtain the stress distribution on the cup in agree- ment in terms of stress values with available data in literature, encouraging the authors to- wards the development of a comprehensive model to calculate the implant wear.
978-889-42484-7-0
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11386/4682332
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