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Uptodate Reference Title
Lunate fracture and osteonecrosis
Lunate fracture and osteonecrosis
This T1-weighted, axial magnetic resonance image of the wrist shows a curvilinear region of increased signal (arrow) traversing the lunate that represents a fracture. The decreased signal intensity throughout the lunate, when compared to the subcutaneous fat or adjacent navicular bone, is consistent with post-traumatic osteonecrosis of the lunate (Kienbock's disease).