Jennings JM, Czuczman GJ, Johnson RM, et al. - In this study, the frequency and types of metal artifact reduction sequence (MARS) MRI-documented abnormalities were ascertained in asymptomatic patients with a ceramic-on-ceramic (CoC) total hip arthroplasty (THA). Researchers included a total of 37 individuals (42 hips) with a minimum 2-year follow-up after THA with CoC THA implants. The absence of hip pain and the availability of appropriate follow-up radiographs were the inclusion criteria. All individuals had undergone a MARS MRI. A previously described method was applied to document the abnormalities. This study's findings demonstrate that asymptomatic fluid collections occur in patients after CoC THA similar to other bearing surfaces. They continue to follow these individuals in an effort to ascertain the clinical significance and natural history of these findings.