Next Article in Journal / Special Issue
The Tribology of Explanted Hip Resurfacings Following Early Fracture of the Femur
Previous Article in Journal
Development of Chitosan Scaffolds with Enhanced Mechanical Properties for Intestinal Tissue Engineering Applications
Previous Article in Special Issue
Effectiveness of Vitamin-E-Doped Polyethylene in Joint Replacement: A Literature Review
Article Menu

Export Article

Open AccessArticle
J. Funct. Biomater. 2015, 6(4), 1012-1020; doi:10.3390/jfb6041012

Bio-Environment-Induced Degradation and Failure of Internal Fixation Implants

1
Materials Science and Engineering, Texas A&M University, College Station, TX 77843, USA
2
Mechanical Engineering, Texas A&M University, College Station, TX 77843, USA
3
Department of Orthopedic Trauma, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editor: Francesco Cilurzo
Received: 21 July 2015 / Revised: 29 August 2015 / Accepted: 10 October 2015 / Published: 15 October 2015
(This article belongs to the Special Issue Advances in the Tribology of Artificial Hip and Knee Joints)
View Full-Text   |   Download PDF [1019 KB, uploaded 15 October 2015]   |  

Abstract

Internal fixations provide fast healing but their failure remains problematic to patients. Here, we report an experimental study in failure of three typical cases of metals: a bent intramedullary stainless steel nail, a broken exterior pure Ti plate, and a broken intramedullary stainless steel nail. Characterization of the bent nail indicates that those metals are vulnerable to corrosion with the evidence of increased surface roughness and embrittlement. Depredated surface of the Ti plate resulted debris particles in the surrounding tissue of 15.2 ± 6.5 μm in size. Nanoparticles were observed in transmission electron microscope. The electron diffraction pattern of the debris indicates a combination of nanocrystalline and amorphous phases. The failure mode of the broken nail made of stainless steel was found to be fatigue initiated from the surface. This study clearly shows the biological-attack induced surface degradation resulting in debris and fatigue. Future design and selection of implant materials should consider such factors for improvement. View Full-Text
Keywords: internal fixation; surface degradation; debris particles; titanium; stainless steel; surface roughness; microhardness; failure mechanisms; potentiodynamic polarization scans internal fixation; surface degradation; debris particles; titanium; stainless steel; surface roughness; microhardness; failure mechanisms; potentiodynamic polarization scans
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Zhou, Y.; Perkins, L.A.; Wang, G.; Zhou, D.; Liang, H. Bio-Environment-Induced Degradation and Failure of Internal Fixation Implants. J. Funct. Biomater. 2015, 6, 1012-1020.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
J. Funct. Biomater. EISSN 2079-4983 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top