title: New percutaneous access method for minimally invasive anterior lumbosacral surgery.
abstract: 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.
authors.affiliation: University of Minnesota, Minneapolis, Minnesota 55424, USA. andrewcragg@hotmail.com
authors.forename: Andrew
authors.initials: A
authors.lastname: Cragg
authors.forename: Allen
authors.initials: A
authors.lastname: Carl
authors.forename: Flavio
authors.initials: F
authors.lastname: Casteneda
authors.forename: Curtis
authors.initials: C
authors.lastname: Dickman
authors.forename: Lee
authors.initials: L
authors.lastname: Guterman
authors.forename: Carlos
authors.initials: C
authors.lastname: Oliveira
mesh_terms: D000818:Animals; D001706:Biopsy / Q000295:instrumentation / Q000379:methods; D002102:Cadaver; D002404:Catheterization / Q000295:instrumentation / Q000379:methods; D017587:Diskectomy, Percutaneous / Q000295:instrumentation / Q000379:methods; D005240:Feasibility Studies; D005471:Fluoroscopy; D006801:Humans; D007431:Intraoperative Complications / Q000517:prevention & control; D008159:Lumbar Vertebrae / Q000033:anatomy & histology / Q000601:surgery*; D008279:Magnetic Resonance Imaging; D016343:Monitoring, Intraoperative / Q000295:instrumentation / Q000379:methods; D019635:Neurosurgical Procedures / Q000295:instrumentation* / Q000379:methods*; D010865:Pilot Projects; D011183:Postoperative Complications / Q000473:pathology / Q000503:physiopathology / Q000517:prevention & control; D015203:Reproducibility of Results; D012447:Sacrum / Q000033:anatomy & histology / Q000601:surgery*; D013123:Spinal Fusion / Q000295:instrumentation / Q000379:methods; D034421:Sus scrofa; D016896:Treatment Outcome