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Updated: Jun 17, 2025

Transtubular Endoscopic Posterolateral Decompression for L5-S1 Lumbar Lateral Disc Herniation
Published on: October 14, 2022
Full-endoscopic discectomy utilizing an interlaminar approach for gas-containing herniation at L5-S1
Yoshihiko Ioroi1, Toshinari Kawasaki1, Jun Hashimoto1
1Department of Spinal Neurosurgery, Kyoto Katsura Hospital, Kyoto, Japan.
Background:
Intradiscal gas is frequently observed in older patients with disc degeneration and can occasionally result in nerve root compression.
Case Description:
A 79-year-old male patient presented with increasing left lower extremity sciatica. Lumbar computed tomography (CT) and magnetic resonance (MR) images revealed a left paramedian L5-S1 gas-containing disc herniation. Utilizing an interlaminar approach, a full-endoscopic discectomy (FED) was performed at L5-S1. During disc removal, we countered intradiscal gas bubbles. Postoperatively, the patient's symptoms/signs fully resolved, and follow-up MR and CT images revealed total resection of the disc herniation, and no further gas.
Conclusion:
Through an interlaminar FED, we effectively removed an L5-S1 MR/CT-documented gas-containing disc herniation.