Magnetic Resonance Imaging Findings in Painful Metal-On-Metal Hips
A Prospective Study
Shiraz A. Sabah, BSc,* Adam W.M. Mitchell, FRCR,y Johann Henckel, MRCS,z Ann Sandison, MRCPath,§ John A. Skinner, FRCS(Orth),• and Alister J. Hart, FRCSG(Orth)z
*Imperial College London, London, UK; y Department of Radiology, Charing Cross Hospital, London, UK; z Department of Musculoskeletal Surgery, Charing Cross Hospital, London, UK; §Department of Histopathology, Charing Cross Hospital, London, UK; •Department of Orthopaedics, Charing Cross Hospital, London, UK; and b Imperial College Healthcare NHS Trust, London, UK.
The Journal of Arthroplasty Vol. 26 No. 1 2011
Abstract: Metal artifact reduction sequence magnetic resonance imaging findings are reported in a prospective series of 31 patients with unexplained painful metal-on-metal (MOM) hips. The abnormalities identified were fluid collection (20 patients), solid mass (2 patients), moderate to severe muscle atrophy (23 patients), and muscle edema (8 patients). In conclusion, soft tissue lesions and muscle atrophy appear to be prevalent in unexplained painful MOM hips. Metal artifact reduction sequence magnetic resonance imaging may be useful to diagnose and monitor at-risk hips but requires validation in well-functioning MOM hips before it can guide clinical decision making.
- Predicting Dissatisfaction After THA
- Sex as a Patient Selection Criterion for Metal-on-Metal HRA
- Whole Blood Metal Ion Concentrations
- Magnetic Resonance Imaging Findings in Painful Metal-On-Metal Hips
- Adverse reaction to metal debris following hip resurfacing
- Ceramic-on-Ceramic Hip Outcome at a 5- to 10-Year Interval
- Wear Comparison
- The Incidence of Acetabular Osteolysis in Young Patients
- A Monoblock Porous Tantalum Acetabular Cup Has No Osteolysis on CT at 10 Years
- Large Acetabular Defects Can be Managed with Cementless Revision Components
- A Comparison of Two Implant Systems in Restoration of Hip Geometry in Arthroplasty
- Total Hip Arthroplasty Modular Neck Failure
- Revision of Failed THA Acetabular Cups to Porous Tantalum Components
- Metal-on-Metal Hip Arthroplasty in Patients Thirty Years of Age or Younger
- Metal-on-Metal Total Hip Arthroplasty
- Optimal acetabular orientation for hip resurfacing
- Histological Features of Pseudotumor-like Tissues From Metal-on-Metal Hips
- The Prevalence of Groin Pain After Metal-on-Metal THA and THR
- Risk of Complication and Revision Total Hip Arthroplasty