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Abstract #1412

A Prospective, Longitudinal Assessment of Adverse Local Tissue Reactions in Resurfacing Hip Arthroplasty Versus Primary Total Hip Arthroplasty

Jacqui C. Zhu1, Matthew F. Koff1, Bin Lin1, Kara Fields1, Danyal G. Nawabi1, Edwin Su1, Douglass Padgett1, and Hollis G. Potter1

1Hospital for Special Surgery, New York, NY, United States

The purpose of this prospective study was to compare the prevalence of magnetic resonance imaging detected adverse local tissue reactions (ALTRs) in metal-on-metal hip resurfacing arthroplasty (HRA) and ceramic-on-poly (COP) total hip arthroplasty subjects. Images acquired at 4 time points with a 1-year interval showed a higher prevalence of ALTRs in the HRA than COP subjects. The self-assessed symptomatology scores did not significantly differ between the two groups at follow-up, indicating that ATLRs can be clinically silent. This study will permit better understanding of the natural history and follow up of ALTRs complicating hip arthroplasty.

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