naa a22 4500 510760392 CHVBK 20180411083137.0 cr unu---uuuuu 180411e20131001xx s 000 0 eng 10.1007/s11420-013-9357-5 doi (NATIONALLICENCE)springer-10.1007/s11420-013-9357-5 Imaging Metal-on-Metal Hip Replacements: the Norwich Experience [Elektronische Daten] [Marianna Thomas, James Wimhurst, John Nolan, Andoni Toms] Background: Adverse reaction to metal debris is a relatively recently described and often a silent complication of metal-on-metal (MOM) total hip replacements (THR). The Norfolk & Norwich University Hospital has been performing metal artefact reduction (MARS) MRI for 8years in a variety of different types of MOM THR. Questions/purposes: The aims of this review are to describe the experience of using MARS MRI in Norwich and to compare our experience with that published by other groups. Methods: A MEDLINE keyword search was performed for studies including MRI in MOM THR. Relevant publications were reviewed and compared with published data from the Norfolk & Norwich University Hospital. The similarities and differences between these data were compared and possible explanations for these discussed. Results: MARS MRI appears to be the most useful tool for diagnosing, staging and monitoring adverse reactions to metal debris (ARMD). There appears to be no clinically useful association between clinical and serological markers of disease and the severity of MR findings. Although severe early ARMD is associated with significant morbidity, mild disease is often stable for years. If patients with normal initial MR examinations develop ARMD, this usually occurs 7years. A 1-year interval between MRI examinations is reasonable in asymptomatic patients. Conclusions: There is a general international consensus that ARMD is prevalent in symptomatic and asymptomatic patients with MOM THR and that while appearances vary with the type of prosthesis, there are characteristic features that make MARS MRI essential for diagnosis, staging and surveillance of the disease. Hospital for Special Surgery, 2013 hip nationallicence arthroplasty nationallicence metal-on-metal nationallicence ALVAL nationallicence MRI nationallicence Thomas Marianna Departments of Radiology, Norfolk & Norwich University Hospitals NHS Trust, Norwich, UK aut Wimhurst James Departments of Orthopaedics, Norfolk & Norwich University Hospitals NHS Trust, Norwich, UK aut Nolan John Departments of Orthopaedics, Norfolk & Norwich University Hospitals NHS Trust, Norwich, UK aut Toms Andoni Departments of Radiology, Norfolk & Norwich University Hospitals NHS Trust, Norwich, UK aut HSS Journal ® Springer US; http://www.springer-ny.com 9/3(2013-10-01), 247-256 1556-3316 9:3<247 2013 9 11420 https://doi.org/10.1007/s11420-013-9357-5 text/html Onlinezugriff via DOI 1 review-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11420-013-9357-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Thomas Marianna Departments of Radiology, Norfolk & Norwich University Hospitals NHS Trust, Norwich, UK aut NATIONALLICENCE 700 1- Wimhurst James Departments of Orthopaedics, Norfolk & Norwich University Hospitals NHS Trust, Norwich, UK aut NATIONALLICENCE 700 1- Nolan John Departments of Orthopaedics, Norfolk & Norwich University Hospitals NHS Trust, Norwich, UK aut NATIONALLICENCE 700 1- Toms Andoni Departments of Radiology, Norfolk & Norwich University Hospitals NHS Trust, Norwich, UK aut NATIONALLICENCE 773 0- HSS Journal ® Springer US; http://www.springer-ny.com 9/3(2013-10-01), 247-256 1556-3316 9:3<247 2013 9 11420 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer