ABSTRACT
The Dynesysw Spinal Instrumentation System (Zimmer Spine, Minneapolis, Minnesota, U.S.A.) is a unique, FDA-approved lumbar spinal instrumentation system that has been implanted in over 15,000 patients in Europe and the United States (1). This system is FDA-approved under the 510(k) process as an adjunct to lumbar fusion in skeletally-mature individuals to supplement bilateral-lateral onlay autograft bone. Dynesysw has recently completed an FDA investigational device exemption (IDE) trial comparing the system without bone grafting to a standard 1 or 2-level lumbar fusion with pedicle screw supplementation and onlay autograft bone. The purpose of this Chapter is to review this spinal system, its potential indications, available biomechanical data and our clinical experience with the system.
