Abstract
This study investigates the effect of experience of the interpreter on the ability of magnetic resonance imaging (MRI) to identify the presence and anatomic location of a triangular fibrocartilage complex (TFCC) lesion. Fifty-one patients who underwent wrist arthroscopy with preoperative MRI studies were reviewed retrospectively. Two radiologists with different levels of training and experience evaluated the MRI scans in a blinded manner. The sensitivity rates of the 2 observers for detection of TFCC lesions were 86% and 80%. The specificity rates were 96% and 80%. The accuracy rates for prediction of a TFCC tear were 83% and 61% for the 2 observers. The correct location of a TFCC lesion was predicted by the more experienced observer for 12 of 19 central, 3 of 4 radial, and 6 of 12 peripheral lesions. The less experienced observer correctly identified 8 of 19 central, 2 of 4 radial, and 2 of 12 peripheral tears. The overall accuracy rates for prediction of a TFCC lesion and its location were 69% and 37%. Our data indicate that the published accuracy rates for prediction of TFCC lesion location may be reproducible only in very specialized centers.
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