musculoskeletal and connective tissue disorders
Kienböck Disease
Introduction
Kienböck disease is avascular necrosis of the lunate bone. Symptoms include wrist pain and tenderness. Diagnosis is with imaging. Treatment is with various surgical procedures. (See also Overview and Evaluation of Hand Disorders .) Kienböck disease occurs most commonly in the dominant hand of men aged 20 to 45, usually in workers doing heavy manual labor. Overall, Kienböck disease is relatively rare. Its cause is unknown. The lunate can eventually collapse and cause fixed rotation of the scaphoid and subsequent degeneration of the carpal joints. 