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Journal article
Retrieval Analysis of Titanium Nitride Coatings for Orthopaedic Implants
Journal of Arthoplasty, v 39(9), S279
15 Jul 2024
PMID: 39019413
Featured in Collection : Research Supported by Drexel Libraries' OA Programs
Abstract
Background
The first generation of titanium nitride (TiN) coatings for orthopaedic implants was clinically introduced in the 1990s because of their promising biocompatibility, wear resistance, and corrosion resistance. This study evaluated the in vivo performance of early TiN-coated knee and hip implants, focusing on the bearing surfaces and mechanisms of in vivo damage.
Methods
There were thirteen TiN-coated implants (5 knee and 8 hip) retrieved from 8 patients as part of a multi-institutional implant retrieval program. The average implantation time was 4.25 years for knees and 17.5 years for hips. Implant revisions occurred for various reasons, including PE wear, loosening, pain, infection, and instability. Components were examined using a semiquantitative scoring method, and surface roughness measurements were performed using white-light interferometry (WLI). Surface morphology, chemistry, and particle characterization were also assessed using scanning electron microscopy.
Results
For hips, mild corrosion was found on femoral head tapers, along with severe scratching on certain femoral heads. Knee implants exhibited low burnishing and scratching for both mechanisms. Roughness measurements (Sa) were 37.3 nm (Interquartile Range, IQR = 22.0 to 62.4) for hips and 85.3 nm (IQR = 66.3 to 110) for knees. The observed scratch depth in both hip and knee implants due to 3rd body particles ranged from 0.3 to 1.3 μm. The coating coverage remained intact in the majority of the implants, with two cases of small, localized cohesive chipping and substrate exposure.
Conclusions
The results of this study confirm the potential in vivo durability of early TiN coatings and will be useful in benchmarking wear tests for modern TiN-coated orthopaedic implants.
Metrics
Details
- Title
- Retrieval Analysis of Titanium Nitride Coatings for Orthopaedic Implants
- Creators
- Cemile Basgul (Corresponding Author) - Drexel University, School of Biomedical Engineering, Science, and Health SystemsDaniel W MacDonald - Drexel University, School of Biomedical Engineering, Science, and Health SystemsGregg R Klein - Hackensack University Medical CenterNicolas S. Piuzzi - Cleveland ClinicSteven M Kurtz - Drexel University, School of Biomedical Engineering, Science, and Health Systems
- Publication Details
- Journal of Arthoplasty, v 39(9), S279
- Publisher
- Elsevier
- Number of pages
- 8
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- School of Biomedical Engineering, Science, and Health Systems
- Web of Science ID
- WOS:001300985400046
- Scopus ID
- 2-s2.0-85199928362
- Other Identifier
- 991021893411904721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Orthopedics