Related Experiment Video
Updated: Aug 12, 2026

Transtubular Endoscopic Posterolateral Decompression for L5-S1 Lumbar Lateral Disc Herniation
Published on: October 14, 2022
Endoscopically assisted open removal of laterally herniated lumbar discs
1Oregon Health Sciences University, Division of Neurosurgery, Portland 97201, USA.
Background:
Adequate treatment of laterally herniated lumbar discs presents a surgical challenge. All fragments compressing the nerve root should be removed without destruction of the overlying facet joint. To accomplish this goal many techniques have been proposed, each with specific limitations.
Methods:
In a small group of patients we have used a small malleable endoscope to assist in the removal of laterally herniated discs. Via a small laminotomy, the nucleus was removed in a standard manner and then the lateral disc material removed under direct endoscopic visualization.
Results:
There were no operative complications and the nerve root was visualized and decompressed in all patients. There has been no recurrence of pain or development of spondylolisthesis.
Conclusion:
This technique negates removal of portions of the facet joint and provides adequate nerve root decompression.

