Method of Characterizing Fretting and Corrosion at the Various Taper Connections of Retrieved Modular Components from Metal-on-Metal Total Hip Arthroplasty

Higgs, Genymphas B.; Hanzlik, J; MacDonald, Daniel W.; Kane, William M.; Day, Judd; Klein, Gregg R.; Parvızı, Javad; Mont, Michael; Kraay, Matthew J.; Martell, John M.; Gilbert, Jeremy L.; Rimnac, Clare M.; Kurtz, Steven M.

doi:10.1520/stp156020120042

Cited by 28 publications

(33 citation statements)

References 13 publications

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“…Bishop et al [1] also used scanning electron microscopy for taper surface investigation, although they presented no comparison with quantitative analysis. While semiquantitative scoring methods are used to visually assess wear and corrosion damage [3,5], it may be necessary to use microscopy to accurately identify potential regions of volumetric material loss. We identified two primary regions of contact with the acetabular shell (proximal and distal) using scanning electron microscopy and surface profilometry.…”

Section: Discussionmentioning

confidence: 99%

“…The visual damage score (a semiquantitative analysis of the extent of surface area showing scratches, corrosion, discoloration, and/or other signs of damage) for 15 of these modular liners was reported in a previous study [4]. Using a modified Goldberg visual damage scoring system [3,5], where scores were assigned from 1 (minimal) to 4 (severe), we found 10 of 15 liners had a score of 2 (mild damage, greater than 10% surface area), four of 15 liners with a score of 3 (moderate damage, greater than 30% surface area), and one of 15 liners with a score of 4 (severe damage, greater than 50% surface area) [4].…”

Section: Methodsmentioning

confidence: 99%

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Is There Material Loss at the Backside Taper in Modular CoCr Acetabular Liners?

Agne

Underwood

Kocagöz

et al. 2015

Clinical Orthopaedics &Amp; Related Research

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This study identifies the acetabular liner/shell interface in modular metal-on-metal devices as a potential source of metal wear or corrosion products. The relation between metal debris and clinical performance, regardless of the type of bearing couple, is a concern for clinicians. Therefore, it is important to characterize every type of modular junction to understand the quantity, location, and mechanism(s) of material loss.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Is There Material Loss at the Backside Taper in Modular CoCr Acetabular Liners?

Agne

Underwood

Kocagöz

et al. 2015

Clinical Orthopaedics &Amp; Related Research

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“…Each patient who has undergone revision surgery (12 of 15 diagnosed as of manuscript submission) had visible corrosion at the head neck junction [4] with soft tissue pathology of varying degrees [5]. The phenomenon was not understood for the first patient who presented with ALTR (patient 2), so metal ion levels were not obtained in his case.…”

Section: Methodsmentioning

confidence: 99%

“…using a four-point system (zero to three), with grade 3 damage most serious. Composite fretting and corrosion damage at the modular Co alloy head and metal stem interfaces were characterized using a previously published four-point scoring technique [4], with a score of four for severe corrosion attack and abundant corrosion debris.…”

Section: Contents Lists Available At Sciencedirectmentioning

confidence: 99%

A High Prevalence of Corrosion at the Head–Neck Taper with Contemporary Zimmer Non-Cemented Femoral Hip Components

McGrory

Mackenzie

Babikian

2015

The Journal of Arthroplasty

114

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“…The head-stem taper junction has been identified as a possible source of fretting wear and corrosion debris [3][4][5][6][7][8][9][10][11][12][13][14]. Several previous studies have performed a qualitative assessment at the taper junction and have identified the presence of fretting and corrosion damage [3-11, 19, 20].…”

Section: Introductionmentioning

confidence: 99%

Method for Characterization of Material Loss from Modular Head-Stem Taper Surfaces of Hip Replacement Devices

Răcăşăn

Bills

Blunt

et al. 2015

Modularity and Tapers in Total Joint Replacement Devices

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Assessment of the head-stem taper junction requires the estimation of material loss from the taper surfaces of both femoral head and stem. This paper describes a method for the measurement and analysis of material loss from the modular taper junction of hip replacements, in particular femoral stem tapers where generally the entire taper surface has been engaged. In such cases no direct unengaged datum surface is readily identifiable to assess material loss. The highly anisotropic topology of some stem designs poses additional challenges to the measurement and analysis process. Estimation of material loss of retrieved femoral stems is further complicated by retrieval damage or surface deposits often present on the taper surface. The femoral head tapers typically exhibit areas of pristine surface attributed to the difference in taper length compared to the engaging stem. These areas can be selected as unworn when employed in the analysis process, provided they do not show surface damage or deposits. Measurement of the taper surfaces has been performed using a Talyrond (Ametek, Inc., US) outof-roundness measurement instrument equipped with a 5µm diamond tip stylus. Vertical axial traces were employed to digitize the surface of the taper. Measurement data has been analyzed using a multi stage process that has been specifically adapted for stem tapers. The underlying stem taper geometry is determined by means of a morphological filter applied to the high aspect ratio microstructure. This paper presents a study of 40 retrieved LHMoM hip replacements that have been analyzed to ascertain the material loss at the modular taper junction. The purpose of this study was to ascertain the viability of characterizing material loss from the stem taper junction and to provide insight into the overall material loss contribution.

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Method of Characterizing Fretting and Corrosion at the Various Taper Connections of Retrieved Modular Components from Metal-on-Metal Total Hip Arthroplasty

Cited by 28 publications

References 13 publications

Is There Material Loss at the Backside Taper in Modular CoCr Acetabular Liners?

Is There Material Loss at the Backside Taper in Modular CoCr Acetabular Liners?

A High Prevalence of Corrosion at the Head–Neck Taper with Contemporary Zimmer Non-Cemented Femoral Hip Components

Method for Characterization of Material Loss from Modular Head-Stem Taper Surfaces of Hip Replacement Devices

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