Contact Mechanics and Plastic Deformation at the Local Surface Topography Level After Assembly of Modular Head-Neck Junctions in Modern Total Hip Replacement Devices

Ha, Nguyen Q.; Hall, Deborah A.; Urban, Robert M.; Levine, Brett R.; Pourzal, Robin

doi:10.1520/stp159120140148

Cited by 22 publications

(40 citation statements)

References 37 publications

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“…Again, surface topography was characterized by average roughness, not machining mark height. Our own work based on multiscale finite element analysis supports our results that surface topography plays a meaningful role in damage evolution of modular junction [27]. The surface topography drives the actual and real contact area, the degree of plastic strain, and residual stresses.…”

Section: Discussionsupporting

confidence: 82%

“…Linear profiles were taken perpendicular to the machining marks through each image. Custom-written Matlab software (The Mathworks Inc, Natick, MA, USA) was used to identify the height and spacing between machining marks as previously described [27]. Preliminary investigations revealed that the head taper surfaces did not have consistent machining mark topography; therefore, average surface roughness (R a ) was used to define the head taper surface topography [27].…”

Section: Methodsmentioning

confidence: 99%

“…We previously characterized the stem taper surface topography as a wave defined by height and spacing parameters (Fig. 1A) and found that the surface topography of stem tapers was highly variable depending on the manufacturer and material alloy used for the femoral stem [27]. The most frequently used stem/head taper metal alloy couples are either a CoCrMo or a Ti6Al4 V stem paired with a CoCrMo head (CoCr/CoCr and CoCr/Ti, respectively).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Does Surface Topography Play a Role in Taper Damage in Head-neck Modular Junctions?

Pourzal

Hall

et al. 2016

Clinical Orthopaedics &Amp; Related Research

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Section: Discussionsupporting

confidence: 82%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Does Surface Topography Play a Role in Taper Damage in Head-neck Modular Junctions?

Pourzal

Hall

et al. 2016

Clinical Orthopaedics &Amp; Related Research

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“…Previous studies also reported that there was less fretting in the (zirconia) ceramic group compared with the Co–Cr–Mo alloy group. Moreover, Lundberg et al reported that the Co–Cr–Mo alloy had higher contact area and displaced further onto Ti alloy trunnions than ceramics and the plastic strain area was larger in the trunnions used against the alloys than against the ceramics, and the (residual) contact pressure in the interface with the ceramics was higher than with alloys. Higher residual stress is most likely associated with better locking at the head–stem neck junction.…”

Section: Discussionmentioning

confidence: 99%

Reducing fretting‐initiated crevice corrosion in hip simulator tests using a zirconia‐toughened alumina femoral head

et al. 2017

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Taper fretting corrosion is considered a potentially limiting factor for total hip arthroplasty longevity. Recently, attention has been focused on new materials for ceramic femoral heads, for example, zirconia-toughened alumina (ZTA), since they have an alternative bearing surface that can improve the wear resistance. Moreover, ceramics have high chemical stability and corrosion resistance. In this study, we evaluated the effects of ZTA and Co-Cr-Mo alloy femoral heads on their taper fretting and/or corrosion characteristics under a controlled hip simulator test. After the test, less fretting and corrosion were observed in the taper surface of the trunnion against the ZTA femoral head than for that against the Co-Cr-Mo alloy femoral head. In addition, corrosion damages were only observed in the lateral-distal taper surface (noncontact area) of the trunnion in the Co-Cr-Mo alloy femoral head group. The ZTA femoral head group also eliminated the potential for Co ion release into the lubricants from taper corrosion, reducing the possibility of adverse local tissue inflammatory responses. In conclusion, ZTA femoral heads showed markedly less fretting corrosion compared to Co-Cr-Mo alloy femoral heads and have a lower potential for metal ion release. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 2815-2826, 2018.

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“…Some damage features were similar to those found at taper junctions in hip arthroplasty. Especially plastic deformation, material transfer, tribological films, cell‐like residues and corrosion damages have been detected (Gilbert et al, ; Gilbert, Sivan, et al, ; Lundberg et al, ). Other damage modes, such as imprinting and column damage (Hall et al, ), were not observed in our retrieval cohort of shoulder implants.…”

Section: Discussionmentioning

confidence: 99%

In vivo corrosion and damages in modular shoulder prostheses

et al. 2019

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Wear and corrosion at taper junctions of orthopaedic endoprostheses remain of great concern and are associated with adverse clinical reactions. Whereas tribocorrosion of hip tapers was extensively investigated, there is only little knowledge regarding the clinical performance of modular total shoulder prostheses. This retrieval study evaluated 35 modular taper junctions of anatomical shoulder explants using stereomicroscopy, confocal microscopy, as well as optical and scanning electron microscopy to determine the damage modes as well as the effects of taper topography and alloy microstructure. Among all humeral head tapers, 89% exhibited material degradation. Different overlapping wear mechanisms were identified such as plastic deformation, adhesive material transfer, microploughing, and fretting damage.Only CoCrMo cast alloy heads showed a susceptibility to electrochemically dominated fretting in comparison to CoCrMo wrought alloy. Moreover, corundum blasted stem tapers show a significantly increased incidence rate for microploughing. To date, this is the most comprehensive study on the damage types of modular taper junctions of anatomical shoulder arthroplasty proving the existence of fretting even on less weight-bearing implants. This study revealed critical fretting factors, such as the surface finish and the alloy type that are essential for the development of countermeasures that avoid any taper corrosion.

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Contact Mechanics and Plastic Deformation at the Local Surface Topography Level After Assembly of Modular Head-Neck Junctions in Modern Total Hip Replacement Devices

Cited by 22 publications

References 37 publications

Does Surface Topography Play a Role in Taper Damage in Head-neck Modular Junctions?

Does Surface Topography Play a Role in Taper Damage in Head-neck Modular Junctions?

Reducing fretting‐initiated crevice corrosion in hip simulator tests using a zirconia‐toughened alumina femoral head

In vivo corrosion and damages in modular shoulder prostheses

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