The intrinsic ligaments are best assessed on sequential thin-slice coronal MR images. Axial images can also aid in assessing tears, particularly of the scapho-lunate ligament. The volar and dorsal components of the ligaments extend along most of the proximal to distal margins of the bones, whereas the central components are usually thinner and more proximally located.
The scapholunate ligament often demonstrates a triangular configuration, especially at its central component, and less commonly exhibits a linear configuration . The smaller lunotriquetral ligament is more difficult to visualize and most commonly exhibits a delta shape . Linear or amorphous configurations can also be seen. Although most ligaments display a homogeneous low signal on all pulse-sequences, central or linear vertical intermediate signal may be seen within the scapholunate and lunotriquetral ligaments or at the ligament bone interfaces [29,30]. This intermediate signal should not be misinterpreted as a tear unless fluid signal is seen traversing the ligament or its interface.
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