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Updated: May 4, 2026

Transtubular Endoscopic Posterolateral Decompression for L5-S1 Lumbar Lateral Disc Herniation
Published on: October 14, 2022
Full Endoscopic Translaminar Keyhole Diskectomy for Highly Upmigrated Lumbar Disk Herniation: A Case Report
Pratyush Shahi1, Sang-Ha Shin, Sang-Ho Lee
1Department of Neurosurgery, Wooridul Spine Hospital, Seoul, South Korea.
Case:
A 49-year-old man underwent full endoscopic translaminar keyhole diskectomy for highly upmigrated disk herniation at L5-S1. This scope-in-scope technique involved creation of a targeted fenestration in the lamina using a large working cannula (13.7 mm) and endoscope (10 mm). This was followed by advancement of a smaller working cannula (7.5 mm) and endoscope (6.3 mm) into the fenestration to remove the upmigrated disk fragment. Surgery resulted in excellent outcomes.
Conclusion:
This can be a safe and effective surgical option for highly upmigrated disk herniation. It limits the amount of bone removal by directly targeting the herniated fragment and reduces the chances of neural injury.