Journal article
Corrosion Damage in Retrieved CoCrMo/Ti-6Al-4V Modular Junctions in Femoral Revision Total Knee Components
Journal of biomedical materials research. Part B, Applied biomaterials, v 114(6), e70110
Jun 2026
PMID: 42267645
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Modularity in revision total knee arthroplasty (TKA) is prevalent; however, corrosion mechanisms at modular junctions in these devices are not well investigated compared to total hip arthroplasty (THA). This retrieval study analyzed corrosion damage on modular junctions of cobalt chromium molybdenum (CoCrMo) alloy femoral components with a boss and titanium aluminum vanadium (Ti-6Al-4V) stem components. It is hypothesized that similar corrosion modes would be found in TKA as in THA, including mechanically assisted and non-mechanically driven corrosion. The collected implants were examined using the Goldberg corrosion score, digital optical microscopy, scanning electron microscopy, and energy-dispersive x-ray spectroscopy. Corrosion modes were analyzed, including etching, pitting, intergranular (interphase) corrosion adjacent to carbides, and fretting scars with titanium transfer on CoCrMo. Ti-6Al-4V exhibited plastic deformation, mechanically assisted crevice corrosion (MACC), and titanium-chromium-molybdenum-rich oxides. These findings suggest that TKA junctions may experience corrosion processes similar to THA, warranting further clinical investigation.
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Details
- Title
- Corrosion Damage in Retrieved CoCrMo/Ti-6Al-4V Modular Junctions in Femoral Revision Total Knee Components
- Creators
- Hwaran Lee - Medical University of South CarolinaMichael A Kurtz - Drexel UniversityEmma Barnes - Drexel UniversityGregg R Klein - Hackensack University Medical CenterSteven M Kurtz - Drexel UniversityJeremy L Gilbert (Corresponding Author) - Clemson University
- Publication Details
- Journal of biomedical materials research. Part B, Applied biomaterials, v 114(6), e70110
- Publisher
- Wiley; HOBOKEN
- Number of pages
- 14
- Grant note
- Wyss Endowment at Clemson University
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- School of Biomedical Engineering and Science
- Web of Science ID
- WOS:001788500100001
- Other Identifier
- 991022191261504721
UN Sustainable Development Goals (SDGs)
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Engineering, Biomedical
- Materials Science, Biomaterials