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Imaging of Femoroacetabular Impingement

Fadul, Dalia A., MD1; Carrino, John A., MD, MPH1

doi: 10.2106/JBJS.H.01449
Section VIII: Novel Approaches to Imaging and Tracking of Hip Topology

Femoroacetabular impingement is a relatively recently described cause of hip pain that involves degenerative change in the hips of younger patients (less than thirty-five years old) as a result of predisposing pathoanatomy. The two types of impingement, cam and pincer, often occur together and overlap to varying degrees. The diagnostic workup begins with radiography, but magnetic resonance imaging and magnetic resonance arthrography provide more accurate imaging that characterizes not only the pathoanatomy but also other associated findings, including labral tears and cartilage damage.

1The Russell H. Morgan Department of Radiology and Radiographic Science, The Johns Hopkins University, 601 North Caroline Street, JHOC 5165, Baltimore, MD 21287. E-mail address for D.A. Fadul: E-mail address for J.A. Carrino:

Copyright © 2009 by The Journal of Bone and Joint Surgery, Incorporated
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