title: How to image metal-on-metal prostheses and their complications.
abstract: OBJECTIVE
  Metal-on-metal arthroplasty is a durable alternative to traditional metal-on-polyethylene total hip replacement for young active patients. Although midterm results for resurfacing arthroplasty are reasonable, there is increasing recognition of the problem of metal-induced periprosthetic reactive masses.
  
  
  CONCLUSIONS
  Imaging plays an important role in the investigation of symptomatic metal-on-metal arthroplasty. Radiographs will identify fracture and loosening, but cross-sectional imaging is required to diagnose and stage periprosthetic reactive masses.
authors.affiliation: Department of Radiology, Nuffield Orthopaedic Centre, Windmill Rd, Oxford OX3 7LD, United Kingdom. simon.ostlere@noc.nhs.uk
authors.forename: Simon
authors.initials: S
authors.lastname: Ostlere
mesh_terms: D019644:Arthroplasty, Replacement, Hip; D016477:Artifacts; D003952:Diagnostic Imaging; D006622:Hip Prosthesis; D006801:Humans; D008670:Metals; D011183:Postoperative Complications / Q000175:diagnosis*; D011474:Prosthesis Design; D011475:Prosthesis Failure; D013499:Surface Properties
chemical_list: D008670:Metals