Hip Detectives: researching the cause of painful hip replacements
Blood test can predict failure
Our data was used to set the MHRA action limit for patients with metal-on-metal hip replacements: a cut-off level greater 7 parts per billion had a 90% specificity for predicting failure.
Our award winning protocol for MRI
scanning eliminates artefact from the metal-on-metal hip to show tissue reactions and muscle loss allowing us to prioritise patients for redo surgery and plan the extent and the equipment required before surgery.
Our CT protocols define position
more accurately and precisely than any form of plain radiograph methods
Our Publications
Blood metal ion testing:
Hart AJ, Bandi A, Sabah S, P. Maggiore, P. Tarassoli B. Sampson, J. Skinner. Sensitivity and specificity of blood cobalt and chromium metal ions for predicting failure of metal-on-metal hip arthroplasty. J Bone Joint Surg [Br] 2011;93-B: in press for October 2011.
MARS (Metal Artefact Reduction Sequence) MRI Scanning of MOM hips:
Hart, Satchithananda, Liddle, Sabah, McRobbie, Henckel, Cobb, Skinner, Mitchell. Metal-on-Metal hip arthroplasty: a case-control study using MRI and 3DCT. In press for JBJSA
Sabah SA, Mitchell AW, Henckel J, Sandison A, Skinner JA, Hart AJ. Magnetic resonance imaging findings in painful metal-on-metal hips: a prospective study J Arthroplasty. 2011;26(1):71-76, 76 e71-72.
3D CT Scanning of MOM hips:
Hart AJ; Dandachli W; Schlueter-Brust K; Henckel J; Cobb JP. (2010). Large ball metal on metal hips obscure cup angle measurement on plain radiographs. Hip Int 2009;19-4:323-9
Assessment of the Painful MOM hip:
Hart AJ, Sabah S, Henckel J, Lewis A, Cobb J, Sampson B, Skinner JA. The painful metal-on-metal hip resurfacing. J Bone Joint Surg Br. 2009 Jun;91-B(6):738-44.
GPs and Surgeons can refer patients to our metal-on-metal hip clinics at Charing Cross Hospital
For more information:
Fax 02033117332
