title: Multiexpandable cage for minimally invasive posterior lumbar interbody fusion.
abstract: The increasing adoption of minimally invasive techniques for spine surgery in recent years has led to significant advancements in instrumentation for lumbar interbody fusion. Percutaneous pedicle screw fixation is now a mature technology, but the role of expandable cages is still evolving. The capability to deliver a multiexpandable interbody cage with a large footprint through a narrow surgical cannula represents a significant advancement in spinal surgery technology. The purpose of this report is to describe a multiexpandable lumbar interbody fusion cage, including implant characteristics, intended use, surgical technique, preclinical testing, and early clinical experience. Results to date suggest that the multiexpandable cage allows a less invasive approach to posterior/transforaminal lumbar interbody fusion surgery by minimizing iatrogenic risks associated with static or vertically expanding interbody prostheses while providing immediate vertebral height restoration, restoration of anatomic alignment, and excellent early-term clinical results.
authors.affiliation: Silicon Valley Spine Institute, Campbell.
authors.forename: Jeffrey D
authors.initials: JD
authors.lastname: Coe
authors.affiliation: San Francisco Orthopaedic Surgeons, San Francisco, CA.
authors.forename: James F
authors.initials: JF
authors.lastname: Zucherman
authors.affiliation: Orthopaedic Pediatric and Spine, Crown Point, IN.
authors.forename: Donald W
authors.initials: DW
authors.lastname: Kucharzyk
authors.affiliation: Department of Surgery, Sacred Heart Hospital on the Emerald Coast, Miramar Beach, FL.
authors.forename: Kornelis A
authors.initials: KA
authors.lastname: Poelstra
authors.affiliation: Miller Scientific Consulting, Inc., Asheville, NC.
authors.forename: Larry E
authors.initials: LE
authors.lastname: Miller
authors.affiliation: Bell Neuroscience Institute, Washington Hospital Healthcare System, Fremont, CA, USA.
authors.forename: Sandeep
authors.initials: S
authors.lastname: Kunwar
keywords: Luna; degenerative disc disease; expandable; low back pain