Abductor weakness and stresses around acetabular components of total hip arthroplasty: a finite element analysis

Abductor weakness, and the resulting Trendelenburg gait, after total hip arthroplasty is believed to be associated with a poor long-term outcome. We have constructed a two-dimensional finite element analysis using load cases to mimic this abductor weakness. The finite element analysis demonstrates s...

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Bibliographic Details
Published in:International orthopaedics 1999, Vol.23 (5), p.275-278
Main Authors: SUTHERLAND, A. G, D'ARCY, S, SMART, D, ASHCROFT, G. P
Format: Article
Language:English
Subjects:
Acetabulum - physiopathology
Arthroplasty, Replacement, Hip
Biological and medical sciences
Biomechanical Phenomena
Finite Element Analysis
Humans
Medical sciences
Muscle, Skeletal - physiopathology
Original Paper
Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases
Technology. Biomaterials. Equipments
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Summary:Abductor weakness, and the resulting Trendelenburg gait, after total hip arthroplasty is believed to be associated with a poor long-term outcome. We have constructed a two-dimensional finite element analysis using load cases to mimic this abductor weakness. The finite element analysis demonstrates slightly increased stresses, particularly at the bone-cement interface in the DeLee-Charnley zone I, which does not seem sufficient to explain the adverse effect of abductor weakness.
ISSN:0341-2695
1432-5195
DOI:10.1007/s002640050370