Systems and methods for posterior dynamic stabilization of the spine

摘要

Abstract Devices, systems and methods for dynamically stabilizing the spine are provided. The devices include an expandable spacer having an undeployed configuration and a deployed configuration, wherein the spacer has axial and radial dimensions for positioning between the spinous processes of adjacent vertebrae. The systems include one or more spacers and a mechanical actuation means for delivering and deploying the spacer. The methods involve the implantation of one or more spacers within the interspinous space. 8a 3a 2 3b 8b 7a 5a '5b7 9bI .10a 10b 12a 12b 11-a' 15a 11b 14a 22 14b