Indications
●Patients get degenerative lumbar vertebral instability, Lumbar disc herniation or Lumbar Stenosis while need posterior decompression treatment；
●Patients get post-surgical lumbar vertebral instability, while simultaneously need posterior pedicle screw fixation treatment；
●Patients suffer from lumbar discogenic pain and are restricted to anterior surgery；
●Patients get lumbar spondylolisthesis while simultaneously need spinal canal decompression and reduction fixation treatment；