Orca II is one Lumbar Fusion Cage system, indicated for：
●Degenerative lumbar vertebral instability；
●Lumbar disc herniation or Lumbar Stenosis.
●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