Total Knee Replacement with an Uncemented Porous Tantalum Tibia Component: A Failure Analysis Article Swipe
Samo K. Fokter
,
Nenad Gubeljak
,
E. Punzón-Quijorna
,
Primož Pelicon
,
Mitja Kelemen
,
Primož Vavpetič
,
Jožef Predan
,
Luka Ferlič
,
Igor Novak
·
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.3390/ma15072575
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.3390/ma15072575
Porous tantalum has been extensively used in orthopaedic surgery, including uncemented total knee arthroplasty (TKA). Favourable results were reported with earlier monobloc tibial components and the design evolved to modular implants. We aimed to analyse possible causes for extensive medial tibia bone loss, resulting in modular porous tantalum tibia baseplate fracture after primary TKA. Retrieved tissue samples were scanned with 3 MeV focused proton beam for Proton-Induced X-ray Emission (micro-PIXE) elemental analysis. Fractographic and microstructural analysis were performed by stereomicroscopy. A full 3D finite-element model was made for numerical analysis of stress–strain conditions of the tibial baseplate. Histological examination of tissue underneath the broken part of the tibial baseplate revealed dark-stained metal debris, which was confirmed by micro-PIXE to consist of tantalum and titanium. Fractographic analysis and tensile testing showed that the failure of the tibial baseplate fulfilled the criteria of a typical fatigue fracture. Microstructural analysis of the contact surface revealed signs of bone ingrowth in 22.5% of the surface only and was even less pronounced in the medial half of the tibial baseplate. Further studies are needed to confirm the responsibility of metal debris for an increased bone absorption leading to catastrophic tibial tray failure.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3390/ma15072575
- https://www.mdpi.com/1996-1944/15/7/2575/pdf?version=1649316330
- OA Status
- gold
- Cited By
- 21
- References
- 38
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4220766886
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4220766886Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3390/ma15072575Digital Object Identifier
- Title
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Total Knee Replacement with an Uncemented Porous Tantalum Tibia Component: A Failure AnalysisWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2022Year of publication
- Publication date
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2022-03-31Full publication date if available
- Authors
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Samo K. Fokter, Nenad Gubeljak, E. Punzón-Quijorna, Primož Pelicon, Mitja Kelemen, Primož Vavpetič, Jožef Predan, Luka Ferlič, Igor NovakList of authors in order
- Landing page
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https://doi.org/10.3390/ma15072575Publisher landing page
- PDF URL
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https://www.mdpi.com/1996-1944/15/7/2575/pdf?version=1649316330Direct link to full text PDF
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YesWhether a free full text is available
- OA status
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goldOpen access status per OpenAlex
- OA URL
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https://www.mdpi.com/1996-1944/15/7/2575/pdf?version=1649316330Direct OA link when available
- Concepts
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Materials science, Tibia, Tantalum, Metallosis, Arthroplasty, Medicine, Surgery, MetallurgyTop concepts (fields/topics) attached by OpenAlex
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21Total citation count in OpenAlex
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2025: 5, 2024: 8, 2023: 8Per-year citation counts (last 5 years)
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38Number of works referenced by this work
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10Other works algorithmically related by OpenAlex
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