Replaces anterior spinal column with an expandable lattice implant made of
supportive material that includes use of fusion augmenting material.
Allows ease of use while promoting both immediate spinal stability and
eventual arthrodesis. May be utilized during anterior or retroperitoneal
approaches to the spinal column, primarily addressing anterior spinal
column pathology. May utilize fusion augmenting material of limited
biomechanical strength compared to the strength of its rigid components.
May be accompanied by additional anterior or posterior spinal
instrumentation and fixation. Uses a pair of circular endplate discs that
are distracted from each other by ribs of rigid support rods. Extension
may be performed using an expansion tool once device is placed within
intervertebral space. Hollow portions of device may be packed with bone
or other materials to enhance eventual fusion. Shape of discs at each end
may be manipulated prior to surgery to adapt to the specific spinal
curvature desired.