Abstract
The proper treatment of Kienböck’s disease, a disorder that displays slow progression with eventual collapse of the lunate and alteration of the surrounding carpal architecture, requires an understanding of its aetiology and natural history. A reproducible classification system assists the surgeon in making appropriate treatment choices. In this discussion, we review the history and rationale for the four-stage step-wise classification system, along with our current treatment algorithm. We also discuss emerging classification systems and speculate on future directions in treatment and research.
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