Background MRI is predictive of adverse local tissue reactions (ALTRs) after THA but how MRI directly relates to implant surface wear, fretting, and trunnion corrosion at different articulations between implant components remains unclear. MRI generates high-contrast images to display soft tissues around arthroplasty and may provide a One of the authors certifies that she (HGP), or a member of her family, has received or may receive payments or benefits, during the study period, an amount of more than USD 1,000,000 from General Electric Healthcare (Waukesha, WI, USA). One of the authors certifies that he (MFK), or a member of his immediate family, has received or may receive payments or benefits, during the study period, an amount of USD 100,001 to USD 1,000,000 from Johnson and Johnson (New Brunswick, NJ, USA). One of the authors certifies that he (TB), or a member of his immediate family, has received or may receive payments or benefits, during the study period, an amount of less than USD 10,000 from

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