Failure modes of 433 metal-on-metal hip implants: how, why, and wear

Edward Ebramzadeh; Patricia A Campbell; Karren M Takamura; Zhen Lu; Sophia N Sangiorgio; Jeremy J Kalma; Koen A De Smet; Harlan C Amstutz

doi:10.1016/j.ocl.2011.01.001

Failure modes of 433 metal-on-metal hip implants: how, why, and wear

Orthop Clin North Am. 2011 Apr;42(2):241-50, ix. doi: 10.1016/j.ocl.2011.01.001.

Authors

Edward Ebramzadeh¹, Patricia A Campbell, Karren M Takamura, Zhen Lu, Sophia N Sangiorgio, Jeremy J Kalma, Koen A De Smet, Harlan C Amstutz

Affiliation

¹ J. Vernon Luck Orthopaedic Research Center, Los Angeles Orthopaedic Hospital, University of California, Los Angeles, Los Angeles, CA 90007, USA. EEbramzadeh@laoh.ucla.edu

PMID: 21435498
DOI: 10.1016/j.ocl.2011.01.001

Abstract

Metal-on-metal total hip replacements (THRs) and hip resurfacings are coming under increasing scrutiny in light of concerns that they fail because of high wear and elevated metal ions. The aim of this study was to investigate the modes of failure in a collection of 433 metal-on-metal THRs and hip resurfacings and to examine the correlations between the reasons for revision and a range of patient and implant variables considered relevant to implant wear.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Equipment Failure Analysis*
Female
Hip Prosthesis*
Humans
Hypersensitivity / etiology
Male
Metals / adverse effects
Osteoarthritis, Hip / surgery
Prosthesis Design
Prosthesis Failure*
Retrospective Studies

Substances

Metals