Unilateral Biportal Endoscopy is a surgical procedure to remove stenosis by inserting an endoscope by drilling two small holes about 4mm. It is a state-of-the-art surgical technique that inserts endoscopes on one side to find the exact cause, while inserting surgical instruments on the other to remove bone fractures in the ligaments and joints, which are the main causes of spinal stenosis.

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- Unilateral bi-portal approach, not uniportal

- Clean and wide view while using 2 ports

- No usage limitation of various surgical instrument

- Unilateral laminotomy for bilateral lumbar decompression

- A little bleeding

- Multi-level operation available

- Wide indication