Abstract: Interspinous process device is a kind of non-fusion implant for posterior spinal surgery.It is classified by static system and dynamic system according to its characteristics.

• 摘要：腰椎棘突间内固定器是脊柱外科后路非融合置入物的一类，根据其特性及作用特点可分为静态系统和动态系统两类。