1. It means that in the lower part pedicular screws must be introduced at a more convergent angle than in the upper part if we do not want to break any cortical of the vertebral body.

2. SUMMARY OF BACKGROUND DATA: The morphometry of L5 has been studied to help the introduction of pedicular screws.

3. Methods: Performing microscopic technique to seperate the thick arachnoid membrane with partial resection and did the unilateral or bilateral pedicular omental transposition to the brain.

4. This is a preliminary study on methods and clinical application of percutaneous pediculoplasty in the treatment of vertebral pedicular osteolytic metastasis of lung cancer.

5. Summary of Background Data. The morphometry of L5 has been studied to help the introduction of pedicular screws.