Finite element prediction of contact pressures in cam-type femoroacetabular impingement with varied alpha angles

Qian Liu; Wanchun Wang; Andrew R. Thoreson; Chunfeng Zhao; Weihong Zhu; Pengcheng Dou

doi:10.1080/10255842.2016.1224861

Finite element prediction of contact pressures in cam-type femoroacetabular impingement with varied alpha angles

Qian Liu, Wanchun Wang, Andrew R. Thoreson, Chunfeng Zhao, Weihong Zhu, Pengcheng Dou

Orthopedic Surgery

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Three dimensional finite element models of cam-type FAI with alpha angles of 60°, 70°, 80°, and 90° were created to investigate the cartilage contact mechanics in daily activities. Intra-articular cartilage contact pressures during routine daily activities were assessed and cross-compared with a normal control hip. Alpha angles and hip range of motion were found to have a combined influence on the cartilage contact mechanics in hips with cam-type FAI, thereby resulting in abnormally high pressures and driving the cartilage damage. In particular, alpha angles of 80° or greater contribute to substantial pressure increase under certain types of daily activities.

Original language	English (US)
Pages (from-to)	294-301
Number of pages	8
Journal	Computer Methods in Biomechanics and Biomedical Engineering
Volume	20
Issue number	3
DOIs	https://doi.org/10.1080/10255842.2016.1224861
State	Published - Feb 17 2017

Keywords

Femoroacetabular impingement
alpha angle
contact pressures
finite element model

ASJC Scopus subject areas

Bioengineering
Biomedical Engineering
Human-Computer Interaction
Computer Science Applications

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10.1080/10255842.2016.1224861

Cite this

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title = "Finite element prediction of contact pressures in cam-type femoroacetabular impingement with varied alpha angles",

abstract = "Three dimensional finite element models of cam-type FAI with alpha angles of 60°, 70°, 80°, and 90° were created to investigate the cartilage contact mechanics in daily activities. Intra-articular cartilage contact pressures during routine daily activities were assessed and cross-compared with a normal control hip. Alpha angles and hip range of motion were found to have a combined influence on the cartilage contact mechanics in hips with cam-type FAI, thereby resulting in abnormally high pressures and driving the cartilage damage. In particular, alpha angles of 80° or greater contribute to substantial pressure increase under certain types of daily activities.",

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AU - Zhao, Chunfeng

AU - Zhu, Weihong

AU - Dou, Pengcheng

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AB - Three dimensional finite element models of cam-type FAI with alpha angles of 60°, 70°, 80°, and 90° were created to investigate the cartilage contact mechanics in daily activities. Intra-articular cartilage contact pressures during routine daily activities were assessed and cross-compared with a normal control hip. Alpha angles and hip range of motion were found to have a combined influence on the cartilage contact mechanics in hips with cam-type FAI, thereby resulting in abnormally high pressures and driving the cartilage damage. In particular, alpha angles of 80° or greater contribute to substantial pressure increase under certain types of daily activities.

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KW - alpha angle

KW - contact pressures

KW - finite element model

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Finite element prediction of contact pressures in cam-type femoroacetabular impingement with varied alpha angles

Abstract

Keywords

ASJC Scopus subject areas

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