Dr. Mark Yuhas answers your questions about Kienbock’s Disease:
What is Kienbock’s Disease?
Kienbock’s Disease, also known as avascular necrosis of the lunate, is a disease that can result in pain and stiffness in the wrist. The lunate is one of eight small bones in the wrist that give the wrist its complex and unique motion. “Avascular necrosis” is a lack of blood supply to the bone, which results in bone death. Blood supply is important to all bones to grow, heal, and provide structure and support to the body. Without blood supply, the lunate may not provide the same support and structure needed for proper wrist function.
What is the cause of Kienbock’s Disease? Can it be prevented?
There are several theories about the cause of Kienbock’s Disease, but a single cause has not been identified. Multiple variables are thought to be involved, including a history of wrist trauma. Other contributing factors include variations in anatomy such as the position of the forearm bones at the wrist, the shape of the lunate, and the pattern of blood supply to the lunate. Most of these factors are not able to be controlled by the patient.
There is no way that we know to prevent Kienbock’s Disease. However, it is important to identify this problem as soon as possible in order to prevent progression of the disease which can lead to wrist arthritis. This ultimately can cause pain, stiffness, and decreased function in the wrist.