What condition is associated with avascular necrosis of the lunate?

Kienbock's disease is specifically associated with avascular necrosis of the lunate bone in the wrist. This condition occurs when the blood supply to the lunate is compromised, leading to bone death and subsequent degeneration of the bone structure. The result is often pain and decreased range of motion in the wrist, which can significantly affect an individual’s ability to perform daily tasks and sports activities.

In contrast, the other conditions listed do not directly cause avascular necrosis of the lunate. Osteoarthritis involves the degeneration of joint cartilage and can affect the wrist but does not singularly target the lunate or lead to its necrosis. Rheumatoid arthritis is an autoimmune condition that causes systemic inflammation, impacting multiple joints. While it can cause problematic changes in the wrist over time, it is unrelated to the specific mechanism of avascular necrosis of the lunate. Carpal tunnel syndrome is a result of compression of the median nerve in the wrist and does not pertain to the blood supply or health of the lunate bone. Therefore, Kienbock’s disease is the only condition on the list directly linked to avascular necrosis of the lunate.