1. Vertebral olisthy, spondyloschisis, oateophyma and fibroplasia were all well-demonstrated in MPR.

2. Objective To evaluate the clinical application value of multi-slice CT (MSCT) MPR and VR technique in lumber spondyloschisis diagnosis.

3. Objective To utilize SOCON nail and hook system for pedicle of vertebral arch in the treatment of lumbar vertebrae isthmus spondyloschisis in teenager, and observe the fixation and fusion effect.

4. Objective To assess the value of 3D reconstruction via apical CT in the diagnosis of lumbar spondyloschisis (LS).

5. Conclusion The application of SOCON nail and hook system for pedicle of vertebral arch in the treatment of teenagers lumbar vertebrae isthmus spondyloschisis is a good meth od.