Tuesday, April 17, 2012

MRI imaging of the post op hip

I printed this article abstract because patients seem to continue to recieve sonograms do detect issues with the hip rather than MRI's.  This study reaffirms the need for patients to speak to thier physcians about getting MRIs pre op and post op follow up.  Further, there are different protocals for MRIs, most notably the MARS and the MAVRIC MRI.  you should ask your surgeon about the protocal being used.  I have a number of publications about the Mavric protocal on this blog.  It is a preffered method when examining MoM hips.

http://www.mydepuyhiprecall.com/2011/08/mri-after-arthroplasty-comparison-of.html


J Magn Reson Imaging. 2012 May;35(5):1013-25. doi: 10.1002/jmri.23523.

Magnetic resonance imaging of the postoperative hip.

Source

Department of Radiology and Imaging, Hospital for Special Surgery, New York, NY, USA.

Abstract

Magnetic resonance imaging (MRI) is ideally suited to imaging the patient with painful hip arthroplasty due to its superior soft tissue contrast, multiplanar capabilities, and lack of ionizing radiation. MRI is the most accurate imaging modality in the assessment of periprosthetic osteolysis and wear-induced synovitis, and can also assess regional tendons and neurovascular structures. This article discusses the technical aspects of MRI around metallic implants as well as the appearance of potential complications following hip arthroplasty, including osteolysis, wear-induced synovitis, infection, hemarthrosis, fracture, loosening, component displacement, heterotopic ossification, tendinopathy, and neurovascular impingement. The specific complication of metal hypersensitivity following metal-on-metal prostheses is reviewed. J. Magn. Reson. Imaging 2012;35:1013-1025. © 2012 Wiley Periodicals, Inc.

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