Kienbock’s disease is a painful condition of the wrist, first described by German scientist Robert Kienbock in 1928. Most individuals present with vague pain in the wrist that becomes progressively worse. This condition is caused by degeneration of the lunate bone, which causes pain and loss of function in the wrist. Kienbock’s disease may affect young, active, and productive patients. Diagnosis is determined by a careful wrist evaluation and specialized radiographic studies. Treatment is dependent on the stage of the disease and individual considerations. The surgeons at Long Island Hand to Shoulder Center provide expert evaluation and treatment for wrist conditions such as Kienbock’s disease.