Using the method of sheet plastination, the vascularity of the lunate
bone can be investigated and analyzed. By intraosseous injection, the
deep and superficial venous systems are visualized. Transparent sheets
with slices of embedded specimens show a three-dimensional presentati
on of the vascularity of the human carpus different in functional aspe
cts. Comparing hands with a normal and extended wrist position, three
mechanisms of impairment of the venous drainage are observed. The anat
omical results of this investigation support the hypothesis that venou
s congestion, resulting from intraosseous hypertension, plays a role i
n the development of the necrosis of the lunate bone.