Book chapter
Microgrooved Surface Topography Does Not Influence Fretting Corrosion of Tapers in Total Hip Arthroplasty: Classification and Retrieval Analysis
Modularity and Tapers in Total Joint Replacement Devices
01 Dec 2015
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Surface topography has been suggested as a factor in fretting corrosion. The purpose of this study was to develop a method to characterize a broad range of machined smooth stems and intentionally microgrooved stems. As part of a multicenter, institutional review board–approved retrieval program, 398 stems paired with cobalt-chromium (CoCr; ASTM F75 or ASTM F90) alloy heads were collected. Stems were fabricated from CoCr or titanium-6aluminum-4vanadium (Ti-6Al-4V) alloys and were used in a metal-on-polyethylene bearing total hip device. A roundness machine (Talyrond 585, Taylor Hobson, United Kingdom) was used to quantify surface topography. Linear profiles were measured with a diamond-tip stylus capturing a 10-mm line trace. Commercial software (Ultra, Taylor Hobson, United Kingdom) was used to analyze a 1-mm representative as-manufactured region. Three parameters were calculated from the profiles: average surface roughness, amplitude, and wavelength of microgrooves (if any). Surface observations led to a classification system in which a surface had to contain a periodic pattern, a wavelength >100 μm and an amplitude of >4 μm to be considered microgrooved. Fifty percent (199/398) of the femoral stem taper surfaces were classified as smooth tapered stems. The remaining 50 % (199/398) femoral stem taper surfaces were classified as microgrooved tapered stems. Using multivariate analysis of covariance, implantation time (p < 0.0001), apparent engagement length (p < 0.0001), flexural rigidity (p = 0.009), and head size (p = 0.02) were significant factors in fretting corrosion head damage scores. Surface topography (i.e., smooth or microgrooved, p = 0.86), surface wavelength (p = 0.94), surface amplitude (p = 0.49), and head offset (p = 0.028) were not associated with the femoral head fretting corrosion damage score. Overall, the results of this study do not support trunnion surface morphology as a contributing factor to fretting and corrosion damage at the modular head-neck interface.
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Details
- Title
- Microgrooved Surface Topography Does Not Influence Fretting Corrosion of Tapers in Total Hip Arthroplasty: Classification and Retrieval Analysis
- Creators
- Christina Arnholt - Drexel UniversityRichard Underwood - Exponent (United States)Daniel W MacDonald - Drexel UniversityGenymphas B Higgs - Drexel UniversityAntonia F Chen - Thomas Jefferson University HospitalGregg Klein - Hartzband Center for Hip & Knee Replacement, Dept. of Orthopedic SurgeryBrian Hamlin - Magee-Womens HospitalGwo-Chin Lee - University of Pennsylvania, Penn Muscular Skeletal CenterMichael Mont - Sinai HospitalHarold Cates - Tennessee Orthopedic Foundation, Dept. of OrthopedicsArthur Malkani - Jewish HospitalMatthew Kraay - University Hospitals Case Medical CenterClare Rimnac - Case Western Reserve UniversitySteven M Kurtz - Exponent (United States)
- Publication Details
- Modularity and Tapers in Total Joint Replacement Devices
- Publisher
- ASTM International; 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959
- Number of pages
- 14
- Resource Type
- Book chapter
- Language
- English
- Academic Unit
- School of Biomedical Engineering, Science, and Health Systems
- Web of Science ID
- WOS:000444925200009
- Scopus ID
- 2-s2.0-84961879912
- Other Identifier
- 991019167870804721
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InCites Highlights
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- Collaboration types
- Industry collaboration
- Domestic collaboration
- Web of Science research areas
- Engineering, Biomedical
- Materials Science, Characterization & Testing
- Orthopedics