Keinbock Disease MedPix

Description: Kienbock’s Disease (lunate malacia) is named after Robert Kienbock, who described the disease process in 1910. The cause of the disease is not definitive, but has been associated with ulnar minus variance, as well as other traumatic injury, ranging from repeated compressive strains to a single traumatic fracture. The histologic findings (avascular necrosis) and natural progression of the disease are well established, although treatments vary.