The Femoroacetabular Impingement may be affected by changing the centre of rotation

Mahshid Yazdifar; Nikolaos Bardakos; Richard Field; Mohamadreza Yazdifar; Ibrahim Esat; Mahmoud Chizari

doi:10.1109/ICBME.2012.6519698

The Femoroacetabular Impingement may be affected by changing the centre of rotation

Mahshid Yazdifar, Nikolaos Bardakos, Richard Field, Mohamadreza Yazdifar, Ibrahim Esat, Mahmoud Chizari

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The Femoroacetabular Impingement (FAI) causes pain and reduction of range of motion. FAI also causes abnormal contact stress and potential joint damage around hip. We investigated the kinematics of a hip joint when a FAI occurs. In this study we put forward the following hypotheses: Does changing the kinematics of motion affect the contact surface/forces? Does changing the kinematics of motion eliminate the need of cutting the bump? The study uses a finite element (FE) model of the hip joint to analyse the biomechanics of the hip at the impingement zone. The model was initially analysed using the original kinematics of the joint. The kinematics was then changed with a stepwise changing the centre of rotation to evaluate its effect on the FAI contact zone. The study demonstrated that the joint motions such as flexion, adduction and internal rotation changed with variation of the gap between the femur and the acetabulum.

Original language	English
Title of host publication	2012 19th Iranian Conference of Biomedical Engineering, ICBME 2012
Pages	299-304
Number of pages	6
DOIs	https://doi.org/10.1109/ICBME.2012.6519698
Publication status	Published - 1 Dec 2012
Event	2012 19th Iranian Conference of Biomedical Engineering, ICBME 2012 - Tehran, Iran, Islamic Republic of Duration: 20 Dec 2012 → 21 Dec 2012

Conference

Conference	2012 19th Iranian Conference of Biomedical Engineering, ICBME 2012
Country/Territory	Iran, Islamic Republic of
City	Tehran
Period	20/12/12 → 21/12/12

Keywords

centre of rotation
femoroacetabular impingement
finite element
hip joint

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10.1109/ICBME.2012.6519698

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title = "The Femoroacetabular Impingement may be affected by changing the centre of rotation",

abstract = "The Femoroacetabular Impingement (FAI) causes pain and reduction of range of motion. FAI also causes abnormal contact stress and potential joint damage around hip. We investigated the kinematics of a hip joint when a FAI occurs. In this study we put forward the following hypotheses: Does changing the kinematics of motion affect the contact surface/forces? Does changing the kinematics of motion eliminate the need of cutting the bump? The study uses a finite element (FE) model of the hip joint to analyse the biomechanics of the hip at the impingement zone. The model was initially analysed using the original kinematics of the joint. The kinematics was then changed with a stepwise changing the centre of rotation to evaluate its effect on the FAI contact zone. The study demonstrated that the joint motions such as flexion, adduction and internal rotation changed with variation of the gap between the femur and the acetabulum.",

keywords = "centre of rotation, femoroacetabular impingement, finite element, hip joint",

author = "Mahshid Yazdifar and Nikolaos Bardakos and Richard Field and Mohamadreza Yazdifar and Ibrahim Esat and Mahmoud Chizari",

year = "2012",

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doi = "10.1109/ICBME.2012.6519698",

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Yazdifar, M, Bardakos, N, Field, R, Yazdifar, M, Esat, I & Chizari, M 2012, The Femoroacetabular Impingement may be affected by changing the centre of rotation. in 2012 19th Iranian Conference of Biomedical Engineering, ICBME 2012., 6519698, pp. 299-304, 2012 19th Iranian Conference of Biomedical Engineering, ICBME 2012, Tehran, Iran, Islamic Republic of, 20/12/12. https://doi.org/10.1109/ICBME.2012.6519698

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AU - Esat, Ibrahim

AU - Chizari, Mahmoud

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AB - The Femoroacetabular Impingement (FAI) causes pain and reduction of range of motion. FAI also causes abnormal contact stress and potential joint damage around hip. We investigated the kinematics of a hip joint when a FAI occurs. In this study we put forward the following hypotheses: Does changing the kinematics of motion affect the contact surface/forces? Does changing the kinematics of motion eliminate the need of cutting the bump? The study uses a finite element (FE) model of the hip joint to analyse the biomechanics of the hip at the impingement zone. The model was initially analysed using the original kinematics of the joint. The kinematics was then changed with a stepwise changing the centre of rotation to evaluate its effect on the FAI contact zone. The study demonstrated that the joint motions such as flexion, adduction and internal rotation changed with variation of the gap between the femur and the acetabulum.

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ER -

The Femoroacetabular Impingement may be affected by changing the centre of rotation

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