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      US of the intrinsic and extrinsic wrist ligaments and triangular fibrocartilage complex--normal anatomy and imaging technique.

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          Abstract

          Injuries of the intrinsic and extrinsic wrist ligaments can lead to chronic wrist pain and carpal instability, while injuries of the triangular fibrocartilage complex are a frequent cause of ulnar-sided wrist pain. Currently, magnetic resonance (MR) arthrography is the preferred imaging modality for the evaluation of these structures, but good results can also achieved with MR imaging without preceding arthrography and computed tomographic (CT) arthrography. Promising results have been published on ultrasonography (US) and sonoarthrography of the intrinsic wrist ligaments and the triangular fibrocartilage complex and on US of the majority of extrinsic wrist ligaments. Visualization of these structures can be achieved by using high-frequency linear transducers. US has the advantages of MR imaging and MR arthrography: lower cost, no known contraindication for imaging, and real-time technique with possible dynamic evaluation. This technique does not require imaging guided intraarticular injection of contrast medium prior to MR arthrography or CT arthrography and does not use ionizing radiation; however, US is operator dependent, which can be compensated for by using standardized imaging techniques. Supplemental material available at http://radiographics.rsna.org/lookup/suppl/doi:10.1148/rg.e44/-/DC1.

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          Author and article information

          Journal
          Radiographics
          Radiographics : a review publication of the Radiological Society of North America, Inc
          1527-1323
          0271-5333
          : 31
          : 1
          Affiliations
          [1 ] Department of Radiology, University of Arizona HSC, 1501 N Campbell Ave, Tucson, AZ 85724-5067, USA. mihrat@radiology.arizona.edu
          Article
          rg.e44
          10.1148/rg.e44
          21078815
          dc1d563b-ecd0-49b8-a3da-d12fe1e9b4c4
          History

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