The Effect of Proximal Lunate Morphology “Zapico Classification” on Kienböck’s Disease

Abstract

Background: The Kienböck's disease (KD), even today, has many obscurities. Its etiologies as well as classifications are under constant change and debate, therefore we decided to define the effect of proximal lunate morphology on KD and its usefulness in evaluating the course of the disease.

The Role of Lunate Morphology in the Severity of Kienböck Disease: A Retrospective Study

“…Despite the identification of the disease entity over 100 years ago, the etiopathogenesis of Kienböck disease is still uncertain. Even so, it has been associated with a variety of predisposing factors including single trauma, repetitive microtrauma, damage to the lunate blood supply, corticosteroid use, negative ulnar variance, decreased radial inclination, and lunate morphology [3][4][5]. Viegas et al classified the lunate morphology based on the absence (type I) or presence (type II) of hamate facet at least 2 mm.…”