Type

Journal Article

Authors

M. D. Gilchrist
Luke J. Curley
Joseph D. Lipman
Suzanne A. Maher

Subjects

Engineering

Topics
impingement new generation total hip arthroplasty ceramic acetabular liner alternate bearings mechanical alumina

Mechanical performance of ceramic acetabular liners under impact conditions (2003)

Abstract Although new generation alumina ceramics have exhibited a reduced incidence of fracture, concern still persists about the behavior of ceramic acetabular liners under impact conditions. The objective of this study was to explore whether fracture of a new generation alumina ceramic liner was likely to occur in vivo. Ceramic liners were impacted with forces of 23, 21, 15, and 12 kN (n = 3 at each force). At 23 kN, all 3 ceramic liners fractured on the first impact; at 12 kN none of the ceramic liners fractured after 20 impacts. The threshold force of 12 kN is large in comparison with estimated physiologic forces on the hip during falls or stumbling, suggesting that ceramic liner fracture is not a definite consequence of liner impact.
Collections Ireland -> University College Dublin -> Mechanical & Materials Engineering Research Collection
Ireland -> University College Dublin -> College of Engineering & Architecture
Ireland -> University College Dublin -> School of Mechanical and Materials Engineering

Full list of authors on original publication

M. D. Gilchrist, Luke J. Curley, Joseph D. Lipman, Suzanne A. Maher

Experts in our system

1
M. D. Gilchrist
University College Dublin
Total Publications: 172