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dc.contributor.authorHøl, Paul Johan
dc.contributor.authorHallan, Geir
dc.contributor.authorFurnes, Ove Nord
dc.contributor.authorFenstad, Anne Marie
dc.contributor.authorIndrekvam, Kari
dc.contributor.authorKadar, Thomas
dc.description.abstractThe use of inert head materials such as ceramic heads has been proposed as a method of reducing wear and corrosion products from the articulating surfaces in total hip arthroplasty, as well as from the stem-head taper connection. The aim of the present study was to compare the blood metal ion levels in patients with Oxinium and CoCrMo modular femoral heads, as well as monoblock stainless steel Charnley prostheses at 10 years postoperatively. The 150 patients with osteoarthritis of the hip joint included in a randomized clinical trial were grouped according to femoral head material. One group (n = 30) had received the Charnley monoblock stainless steel stem (DePuy, UK). The other patients (n = 120) received a Spectron EF CoCrMo stem with either a 28 mm CoCrMo or Oxinium modular head (Smith & Nephew, USA). After 10 years, 38 patients had withdrawn, 19 deceased, 7 revised due to aseptic loosening and 5 revised due to infection. The 81 patients with median age of 79 years (70–91) were available for whole blood metal ion analysis. The levels of Co, Cr, Ni and Zr in the blood were generally low with all the head materials (medians <0.3 micrograms/L) and no statistical difference between the groups were found (p = .2–.8). Based on the low blood metal ion values in our study groups, no indication of severe trunnion corrosion in patients with CoCrMo heads was observed, neither was there any beneficial reduction in metal ion exposure with the Oxinium femoral heads.en_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titleSimilarly low-blood metal ion levels at 10-years follow-up of total hip arthroplasties with Oxinium, CoCrMo, and stainless steel femoral heads. Data from a randomized clinical trialen_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.rights.holderCopyright 2022 the authorsen_US
dc.source.journalJournal of Biomedical Materials Research. Part B - Applied biomaterialsen_US
dc.identifier.citationJournal of Biomedical Materials Research. Part B - Applied biomaterials. 2022.en_US

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Navngivelse 4.0 Internasjonal
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