No difference in whole-blood metal ions between 32-mm and 36- to 44-mm femoral heads in metal-on-polyethylene total hip arthroplasty: a 2-year report from a randomised control trial.

Kristine I Bunyoz,Georgios Tsikandylakis,Kristian Mortensen,Kirill Gromov,Maziar Mohaddes,Henrik Malchau,Anders Troelsen

Hip international : the journal of clinical and experimental research on hip pathology and therapy（2023）

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摘要

The use of the largest possible metal head (36-44 mm) compared to a 32-mm head in metal-on-polyethylene bearings does not appear to elevate blood metal-ion levels up to 2 years postoperatively. As taper corrosion is probably time-dependent, longer-term reports are needed to evaluate the association between large metal heads and blood metal ion levels.Trial registration: ClinicalTrials.gov (reg. ID NCT0231 6704).

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关键词

Adverse local tissue reaction,MoP,THA,blood metal ions,chromium,cobalt,large femoral heads,taper corrosion,titanium

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