Mechanically Assisted Crevice Corrosion Damage in Shoulder Arthroplasty Is Comparable to Hip Arthroplasty

Day, Judd; MacDonald, Daniel W.; Abboud, Joseph A.; Williams, Gerald R.; Rimnac, Clare M.; Kraay, Matthew J.; McCloskey, Reagan; Arnholt, Christina M.; Kurtz, Steven M.

doi:10.1520/stp159120150001

Cited by 5 publications

(7 citation statements)

References 37 publications

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“…The recent orthopedic literature is rich with articles relating implant failure to mechanically assisted crevice corrosion (MACC) 8–10 . MACC is the overarching term describing corrosion processes within the confined environment between two corresponding taper surfaces 11 .…”

Section: Introductionmentioning

confidence: 99%

What Factors Drive Taper Corrosion?

Pourzal

Lundberg

Hall

et al. 2018

The Journal of Arthroplasty

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Adverse local tissue reactions to corrosion products can lead to total hip arthroplasty failure. Although this problem has been well known for more than 25 years, it has seemingly increased in frequency over the recent years. The occurrence of corrosion is multifactorial-depending on implant, patient, and surgeon factors. As of now, there is no "one-size-fits-all" solution to prevent corrosion in total hip arthroplasty devices. Thus, it is imperative to fully understand the exact mechanisms of modular junction corrosion to prevent premature implant failure. This review highlights a few key concepts that need to be explored to minimize the impact of corrosion. The key concepts include (1) the prevention of micromotion, (2) the role of implant alloy metallurgy in the corrosion process, (3) the in vivo generation of a corrosive environment, and (4) potential unanticipated problems.

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Section: Introductionmentioning

confidence: 99%

What Factors Drive Taper Corrosion?

Pourzal

Lundberg

Hall

et al. 2018

The Journal of Arthroplasty

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“…Several studies have cited semi-quantitative visual scoring methods as a limitation [19,21,41,[46][47][48]. Despite explicit criteria for assigning scores, visual scoring is a subjective process and therefore susceptible to observer bias [24].…”

Section: Visual Scoringmentioning

confidence: 99%

“…Policies are required for the resolution of inevitable inter-observer disagreement. Typically, adjudication is performed by a third party [19,46,54], although this is still not an infallible option [34], as it does not eliminate regional bias unless undertaken as part of a multicentre study. One study precluded participants from using visual scoring until training had been completed.…”

Section: Visual Scoringmentioning

confidence: 99%

“…The requirement for robust cleaning protocols has been emphasised [45,68], however, recommendations made in the literature are not concurrent. Documented implant cleaning components include: water [39,46,84], detergent [19,41,42,47,57], formalin [38,84], alcohols [33,39,41], and bleach [39,41]. Whilst the choice of reagent will determine the cleaning effect, recommendations have been made that; providing strong bases or acids are not used, it is unlikely that any surface features will be damaged by cleaning process [45].…”

Section: Cleaningmentioning

confidence: 99%

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Comparison and appraisal of techniques for the determination of material loss from tapered orthopaedic surfaces

Dransfield

Addinall

Bills

2021

Wear

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“…14 Retrieval studies demonstrated that taper corrosion can also occur in less weightbearing anatomical shoulder endoprostheses. [15][16][17] Micromotion at the modular taper junction initiates fretting corrosion and consequently metal ion and wear release. 18 The process of fretting can already start with the intraoperative impaction of the taper components since it determines taper engagement and taper stability.…”

Section: Introductionmentioning

confidence: 99%

Intraoperative assembly of anatomical shoulder prosthesis frequently results in malalignment of the modular taper junction

Herbster

Berth

Märtens

et al. 2021

Journal Orthopaedic Research

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Anatomical shoulder arthroplasties (ASA) may fail because of micromotion at the modular taper junction causing wear due to fretting. Sufficient taper strength can reduce micromotion and potential reasons for failure. However, there are no normative standards for a safe assembly process performed intraoperatively by the surgeon. The purpose of this study is to determine the effect of common intraoperative assembly strategies and to identify critical influencing factors on taper stability. ASA with standard and stemless humeral component in combination with concentric Al 2 O 3 heads and eccentric CoCr28Mo6 alloyed humeral heads were tested. Taper angles and surface roughness were determined. Force magnitudes and impact directions were recorded using a sensorized head impactor and a threedimensional force measuring platform. Subsequently, the axial pull-off forces were measured and taper engagement areas were macroscopically evaluated. In comparison to standard stem tapers that were impacted with an assembly device, stemless tapers were impacted into the artificial bone with significantly lower forces. Taper strength correlates to maximum impact force and was higher for CoCr28Mo6 heads with a mean pull-off ratio of 0.56 than for Al 2 O 3 heads with 0.37. Interestingly, all tapers showed an asymmetric clamping behavior, due to tilting during impaction. This is caused by the variation of the resulting force vector and further promoted by humeral head eccentricity. Assembly technique markedly influences the force magnitude, impact direction, impulse, and consequently taper strength. The resulting force vector and head eccentricity were identified as potential risk factors for taper malalignment.

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Mechanically Assisted Crevice Corrosion Damage in Shoulder Arthroplasty Is Comparable to Hip Arthroplasty

Cited by 5 publications

References 37 publications

What Factors Drive Taper Corrosion?

What Factors Drive Taper Corrosion?

Comparison and appraisal of techniques for the determination of material loss from tapered orthopaedic surfaces

Intraoperative assembly of anatomical shoulder prosthesis frequently results in malalignment of the modular taper junction

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