Osteonecrosis of the lunate.

Death of a bone or part of a bone, either atraumatic or posttraumatic.

Synonyms: Bone Necroses, Bone Avascular Necrosis, Kienboeck's Disease, Bone Necrosis, Necrosis, Bone, Osteonecrosis, Kienbock Disease, Kienboeck Disease, Kienbock's Disease, Necroses, Bone, Aseptic Necrosis of Bone, Necrosis, Avascular, of Bone, Osteonecroses, Bone Aseptic Necrosis, Kienboecks Disease, Necrosis, Aseptic, of Bone, Avascular Necrosis of Bone