Preliminary cadaver, animal, and human studies were performed to determine the feasibility of axial anterior lumbosacral spine access using a percutaneous, presacral approach. Custom instruments were directed under fluoroscopic guidance along the midline of the anterior sacrum to the surface of the sacral promontory where an axial bore was created into the lower lumbar vertebral bodies and discs. Imaging and gross dissection were performed in cadavers and animals. The procedure was used for lumbosacral biopsy in human subjects guided by intraoperative imaging and clinical monitoring. All procedures were technically successful. This study demonstrates the feasibility of the axial access technique to the anterior lower lumbar spine.
From the University of Minnesota, Minneapolis, Minnesota, *Albany Medical College, Albany, New York, †University of Illinois, Peoria, Illinois, ‡Barrow Neurological Institute, Phoenix, Arizona, and §State University of New York, Buffalo, New York, and ¶Hospital do Servidor Estadual, Sao Paulo, Brazil
Received for publication February 13, 2003; accepted April 18, 2003.
Reprints: Dr. Andrew Cragg, 4502 Edina Blvd., Edina, MN 55424 (e-mail:email@example.com).
Supported by TranS1, Inc.