| abstract |
Apparatus is employed for forming one or more shaped axial bore extending from an accessed posterior or anterior target point in the cephalad direction through vertebral bodies and intervertebral spinal discs, if present, in general alignment with a visualized, trans-sacral axial instrumentation/fusion (TASIF) line in a minimally invasive, low trama, manner. An anterior axial instrumentation/fusion line (AAIFL) or a posterior axial instrumentation/fusion line (PAIFL) that extends from the anterior or posterior target point, respectively, in the cephalad direction following the spinal curvature through one or more vertebral body is visualized by radiographic or fluoroscopic equipment. Further, bore enlarging tools are employed to enlarge one or more selected section of the anterior or posterior TASIF axial bore(s). |