What is the MRI appearance of tears of the scapholunate and lunotriquetral ligaments?
Tears of these ligaments can be seen as either the absence of the ligament or as the presence of high signal intensity fluid traversing the full thickness of the ligament on T2-weighted images. The characteristic volar or dorsal angulation of the lunate can often be seen with better accuracy on MRI than with radiography, given its nature as a cross-sectional (rather than projectional) imaging technique which avoids superimposition of the carpal bones