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Spinal Hernia Repair and Cauda Equina Repositioning After Lumbar Decompression under Three-Dimensional Microscopy: A Case Report and Literature Review
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Spinal extradural arachnoid cyst.

Seung Won Choi1, Han Yu Seong, Sung Woo Roh

  • 1Department of Neurosurgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.

Journal of Korean Neurosurgical Society
|December 3, 2013
PubMed
Summary
This summary is machine-generated.

Spinal extradural arachnoid cysts (SEACs) are rare causes of spinal cord compression. Tailored laminotomy with cyst fenestration offers a safe and effective treatment alternative for SEACs.

Keywords:
Arachnoid cystCerebrospinal fluidThoracolumbar spine

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Area of Science:

  • Neurosurgery
  • Spinal Surgery
  • Neurology

Background:

  • Spinal extradural arachnoid cysts (SEACs) are rare, often asymptomatic, and an uncommon cause of compressive myelopathy.
  • The exact etiology of SEACs remains unclear, necessitating further investigation into their pathogenesis.
  • SEACs can lead to significant neurological deficits, including pain and paresthesia, impacting patient quality of life.

Observation:

  • Two cases of SEACs presenting with chronic leg and buttock pain and paresthesia were analyzed.
  • Magnetic Resonance Imaging (MRI) revealed extradural cysts at thoracic and thoracolumbar levels in both patients.
  • CT-myelography confirmed a communication between the cyst and the subarachnoid space in one case.

Findings:

  • Surgical intervention involving tailored laminotomy with cyst fenestration and dural repair was performed in both cases.
  • Postoperative follow-up demonstrated gradual symptom resolution and significant cyst reduction within 1-2 months.
  • No recurrence was observed in either patient during the follow-up period.

Implications:

  • Tailored laminotomy with cyst fenestration presents a safe and effective alternative to traditional complete cyst wall resection and multi-level laminectomy for SEACs.
  • This minimally invasive approach may reduce surgical morbidity and improve patient outcomes.
  • Further research into the etiology and optimal surgical management of SEACs is warranted.