A Method for Prediction of Femoral Component of Hip Prosthesis Durability due to Aseptic Loosening by Using Coffin/Manson Fatigue Model

The purpose of this work is to develop a new model estimate of the fatigue life of a hip prosthesis due to aseptic loosening as a multifactorial phenomenon. The formula developed here is a three-parameter model based on Basquin’s law for fatigue, eccentric compression formula for the compressive str...

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Bibliographic Details
Published in:BioMed research international 2018-01, Vol.2018 (2018), p.1-13
Main Authors: Stevanovic, Vladan, Pilipović, Stevan, Atanacković, Teodor M., Selesi, Dora, Blagojevic, Zoran, Krivokapic, Branislav, Bascarevic, Zoran
Format: Article
Language:English
Subjects:
Adult
Age
Analysis
Archives & records
Arthroplasty, Replacement, Hip
Biomechanics
Biomedical materials
Body mass
Body weight
Bone implants
Compression
Compressive properties
Contact force
Durability
Exercise
Fatigue
Fatigue life
Female
Femoral components
Femur
Fractures
Hip
Hip joint
Hip Prosthesis
Humans
Implants, Artificial
Joint surgery
Laws, regulations and rules
Lifestyles
Loosening
Male
Materials fatigue
Mathematical models
Methods
Middle Aged
Parameters
Patients
Physical fitness
Predictions
Prostheses
Prosthesis
Prosthesis Design
Prosthesis Failure
Questionnaires
Reoperation
Retrospective Studies
Statistical analysis
Surgery
Surgical implants
Survival analysis
Transplants & implants
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Description
Summary:The purpose of this work is to develop a new model estimate of the fatigue life of a hip prosthesis due to aseptic loosening as a multifactorial phenomenon. The formula developed here is a three-parameter model based on Basquin’s law for fatigue, eccentric compression formula for the compressive stress and torsion in the prosthesis due to the horizontal components of the contact force. With our model, we can accurately predict the durability of a hip prosthesis due to the following four parameters: body weight, femoral offset, duration, and intensity of daily physical activities of a patient. The agreement of the prediction with the real life of the prosthesis, observed on 15 patients, is found to be adequate. Based on the formula derived for a particular implant, there was a high degree of concurrence between the model-predicted and actual values of aseptic loosening (durability) proved by the Mann–Whitney U test. By virtue of the validated model, it is possible to predict, quantitatively, the influence of various factors on the hip life. For example, we can conclude that a 10% decrease of a patient’s body mass, with all other conditions being the same, causes 5% increase of the hip fatigue life.
ISSN:2314-6133
2314-6141
DOI:10.1155/2018/9263134