Disclosed is an artificial vertebra having a bone-marrow regenerating function,
comprising a hydroxyapatite (HAp)/collagen (Col) composite body formed by pressure-dehydrating
a coprecipitate of hydroxyapatite and collagen to have a nanocomposite structure
in which HAp particles are conjugated along a Col fiber while aligned each of the
c-axes of the HAp particles along the Col fiber. The HAp/Col composite body is
formed with a perforated aperture for allowing a blood vessel and an osteogenic
cell to intrude thereinto. The present invention also provides a biodecomposable/bioabsorbable
support for fixing an artificial vertebra, comprising a polylactic acid plate prepared
by injection-molding molten polylactic acid and then extrusion-molding the injection-molded
polylactic acid in such a manner that it is draw-oriented in a uniaxial direction.
The plate has four corner regions each formed with a screw hole for fixing the
plate to vertebral bodies.
