Sixty-year follow-up in an untreated patient with Kienböck disease.

Kienböck disease can be treated either conservatively or by various operations. We describe the findings of the progression of Kienböck disease over 60 years in an 84-year-old man who had had no surgical treatment. This is the longest follow-up ever reported to our knowledge of a patient with avascular necrosis of the lunate.