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Updated: Jun 19, 2026
10:09
Transtubular Endoscopic Posterolateral Decompression for L5-S1 Lumbar Lateral Disc Herniation
Published on: October 14, 2022
Radicular interdural lumbar disc herniation.
Ali Akhaddar1, Omar Boulahroud, Abad Elasri
1Department of Neurosurgery, Mohammed V Military Teaching Hospital, University of King Mohammed V-Souissi, Rabat, Morocco. akhaddar@hotmail.fr
Summary
Intraradicular lumbar disc herniation, a rare condition, involves disc material lodging between nerve root dura layers. This case highlights a unique instance without subdural penetration, aiding surgical diagnosis.
Area of Science:
- Neurosurgery
- Spinal Surgery
- Radiology
Background:
- Intraradicular lumbar disc herniation is a rare complication of disc disease.
- Diagnosis is typically made during surgical intervention.
- The exact mechanism of intradural disc penetration remains unclear, with adhesions between the radicular dura and posterior longitudinal ligament being a proposed factor.
Observation:
- A 34-year-old soldier presented with chronic low back pain and left sciatica.
- Neurological examination revealed a positive straight leg raise test without deficits.
- Spinal imaging (CT and MRI) showed an L5-S1 disc herniation with suspected intradural extension.
Findings:
- The first reported case of intraradicular lumbar disc herniation without subdural penetration.
- Disc material was found lodged between the inner and outer layers of the S1 radicular dura.
- Surgical extirpation was successful without cerebrospinal fluid leakage.
Implications:
- This case expands the understanding of intraradicular disc herniation presentations.
- Suggests considering this diagnosis in cases of swollen, immobile nerve roots during surgery.
- Highlights the importance of detailed imaging for suspected intradural disc pathology.
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