Short-Term Metal Ion Trends Following Removal of Recalled Modular Neck Femoral Stems

Barlow, Brian; Assini, Joseph; Boles, John; Lee, Yuo-yu; Westrich, Geoffrey H.

doi:10.1016/j.arth.2015.02.033

Cited by 21 publications

(6 citation statements)

References 14 publications

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“…Interest into their degradation mechanisms and biomechanics has been renewed due to the public withdrawal and recall of some products [11]. A number of recent publications have detailed the clinical presentation at revision, surface topography and regions in which degradation are commonly found [12][13][14][15]. All studies are consistent, reporting that…”

Section: Introductionsupporting

confidence: 69%

Surface and subsurface changes as a result of tribocorrosion at the stem-neck interface of bi-modular prosthesis

et al. 2017

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Section: Introductionsupporting

confidence: 69%

Surface and subsurface changes as a result of tribocorrosion at the stem-neck interface of bi-modular prosthesis

et al. 2017

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“…We concur with this recommendation. Additionally, our data, as do others, suggest that Co levels normalized within 1 year of the revision surgery [15].…”

Section: Discussionsupporting

confidence: 89%

Patients With Modular-Neck Total Hip Arthroplasty: A Brief Five-Year Follow-Up Study

Inoue

Restrepo

Nourie

et al. 2020

The Journal of Arthroplasty

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“…Although, a statistically significant difference was observed, the levels encountered should not have any clinical impact. In studies reporting ARMD related to modular neck stem junction corrosion, Co concentrations were usually >7.0 µg/l [ 5 , 6 , 28 ]. In these cases, a Cr/Co ratio greater than 1 is frequently observed [ 29 ].…”

Section: Discussionmentioning

confidence: 99%

Effect of Femoral Stem Modular Neck’s Material on Metal Ion Release

Barry

Kiss

Massé

et al. 2017

TOORTHJ

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Background:In recent decades, the popularity of modular necks in total hip arthroplasty (THA) has increased since modular necks offer the potential to restore the patient’s native anatomy, and thus improve stability. Unfortunately, modular necks are associated with higher complication rates, including implant fracture and modular junction corrosion with adverse local tissue reaction to metal debris.Objective:The objective of this study was to determine the impact of modular neck material on titanium (Ti), chrome (Cr), and cobalt (Co) metal ion levels in patients who underwent a THA with Ti femoral stem, Ti or CrCo modular neck, and ceramic-on-ceramic (CoC) bearing.Methods:Whole blood Ti, Cr, and Co levels were compared at a minimum 1-year follow-up in 36 patients who underwent unilateral, primary CoC large-diameter head THA with Profemur® Preserve modular femoral stems (MicroPort, Arlington, TX, USA).Results:Higher Co concentrations were observed in the CrCo modular neck group (0.46 versus 0.26 µg/l in the Ti neck group, P=0.004) and higher Ti concentrations were observed in the Ti modular neck group (1.98 vs 1.59 µg/l in the CrCo neck group, P=0.007). However, these differences were not clinically meaningful since the absolute values remained within what is considered the safe range of Ti, Cr, and Co ions in whole blood. No patients were re-operated or revised.Conclusion:Modular neck materials had an impact on whole blood metal ion levels but the concentrations measured remained within the safe range at 1-year follow-up. There were no indirect signs of modular junction corrosion with either CrCo or Ti femoral necks.

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Short-Term Metal Ion Trends Following Removal of Recalled Modular Neck Femoral Stems

Cited by 21 publications

References 14 publications

Surface and subsurface changes as a result of tribocorrosion at the stem-neck interface of bi-modular prosthesis

Surface and subsurface changes as a result of tribocorrosion at the stem-neck interface of bi-modular prosthesis

Patients With Modular-Neck Total Hip Arthroplasty: A Brief Five-Year Follow-Up Study

Effect of Femoral Stem Modular Neck’s Material on Metal Ion Release

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