Kienbock disease is the slow, progressive osteochondrosis (degeneration followed by recalcification) of the carpal lunate bone in the wrist. The disease causes pain, inflammation, and stiffness. It also is known as lunatomalacia, aseptic necrosis, osteochondrotitis, traumatic osteoporosis, and osteitis, and it can be classified as a type of cumulative trauma disorder. Kienbock disease usually occurs when the blood supply to the lunate bone is diminished and the lunate experiences either repeated or severe compressions due to extreme wrist positions. However, there is still much debate with regard to determining the exact etiology of the disease. In its early stages, Kienbock disease may have overlapping symptoms with other disorders such as carpal tunnel syndrome and chronic wrist pain, so differential diagnosis must be made so that the proper treatment regimens may be sough.
Osteochondrosis or slow degeneration of the lunate bone of the wrist; usually resulting from trauma. Radiographic evidence includes sclerosis and collapse of the lunate. Treatment goals are to reduce pain, maintain motion, and prevent carpal collapse and ultimately arthritis.
Cell death in the lunate bone, a wristbone, is referred to as necrosis. This condition, marked by wrist pain and stiffness, arises due to insufficient blood flow, often stemming from an overlooked or improperly managed fracture. Typically, treatment involves allowing the joint to rest, though surgery may be necessary in some instances.