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Limitations of MR Imaging in the Diagnosis of Peripheral Tears of the Triangular Fibrocartilage of the Wrist

Andrew H. Haims1, Mark E. Schweitzer2, William B. Morrison2, Diane Deely2, Robert Lange1, A. Lee Osterman3, John M. Bednar3, John S. Taras3 and Randall W. Culp3

1 Department of Radiology, Yale University School of Medicine, 333 Cedar St., P. O. Box 208042, New Haven, CT 06520-8042.
2 Department of Radiology, Thomas Jefferson University Hospital, 111 S. 11th St., Philadelphia, PA 19107.
3 Department of Orthopedic Surgery, Thomas Jefferson University Hospital, Philadelphia, PA 19107.



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  		Fig. 1. —29-year-old woman with normal peripheral (ulnar) attachment of triangular fibrocartilage complex. Coronal three-dimensional gradientecho image from indirect arthrogram (TR/TE, 46/15; flip angle, 45°) shows surgically proven normal peripheral triangular fibrocartilage complex attachment (arrows). Patient had small tear (arrowheads) of central disc of triangular fibrocartilage complex.

 


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  		Fig. 2. —31-year-old man with normal-appearing peripheral attachment of triangular fibrocartilage complex, with tear found on arthroscopy. Coronal three-dimensional gradient-echo image from indirect arthrogram (TR/TE, 46/15; flip angle, 45°) shows normal-appearing ulnar attachment (arrows) that was proven to be peripheral triangular fibrocartilage tear at surgery.

 


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  		Fig. 3. —17-year-old boy with peripheral triangular fibrocartilage tear. Note high signal intensity (arrows) at ulnar insertion on this coronal fast spin-echo fat-suppressed T2-weighted image (TR/TE, 3,617/80).

 

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