Adverse reactions to metal debris in metal-on-polyethylene total hip arthroplasty using a titanium-molybdenum-zirconium-iron alloy stem

Manish Kiran, Petros J. Boscainos (Lead / Corresponding author)

    Research output: Contribution to journalArticlepeer-review

    11 Citations (Scopus)

    Abstract

    We report a series of three patients who underwent uncemented total hip arthroplasty with a modular titanium-molybdenum-zirconium-iron stem and a cobalt-chrome-molybdenum head on an ultra-high molecular weight highly cross-linked polyethylene liner bearing. All three cases subsequently developed pain and adverse reaction to metal debris, leading to revision of the implants within thirty-six months. They were subsequently found to have hypersensitivity to cobalt or chromium. However where tested, blood metal ion levels were within MHRA guideline limits. Corrosion was noted at the taper-trunnion junction. It is possible, that the multi alloy head-neck combination may lead to corrosion. Hypersensitivity to metal ions may result to ARMD at lower metal ion levels. The use of ceramic heads may help avoid this risk.

    Original languageEnglish
    Pages (from-to)277-281
    Number of pages5
    JournalJournal of Arthroplasty
    Volume30
    Issue number2
    DOIs
    Publication statusPublished - Feb 2015

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