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Related Concept Videos

Cranial and Spinal Meninges01:19

Cranial and Spinal Meninges

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The cranial and spinal meninges are complex protective structures surrounding the central nervous system (CNS), consisting of the brain and spinal cord. These meninges consist of the dura mater, the arachnoid mater, and the pia mater. They protect the CNS, provide structural support, and aid in circulating cerebrospinal fluid (CSF).
Cranial Meninges
These meningeal layers cover the cranium. The dura mater is the outermost layer of cranial meninges. It is a thick and durable membrane of dense...
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Local Anesthetics: Clinical Application as Spinal Anesthesia01:11

Local Anesthetics: Clinical Application as Spinal Anesthesia

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Spinal anesthetics are given during lower abdomen and limb surgeries to block sensory and motor neurons. They are administered in the mid to low lumbar regions, primarily acting on the cauda equina's nerve roots. The blockade level depends on the local anesthetic (LA) concentration. Usually, low LA concentrations are sufficient to block sensory fibers, while only high LA concentrations block motor fibers. Other factors like injection volume and speed, the patient's posture, and the drug...
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Updated: Jun 14, 2025

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

Published on: November 8, 2024

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Spinal Arachnoid Cysts-Our Experience.

Batuk Diyora1, Anup Purandare1, Kavin Devani1

  • 1Department of Neurosurgery, Lokmanya Tilak Municipal General Hospital, Mumbai, Maharashtra, India.

Asian Journal of Neurosurgery
|August 29, 2024
PubMed
Summary
This summary is machine-generated.

Spinal arachnoid cysts are rare, often found in the thoracic region. Surgical intervention for symptomatic cysts leads to significant symptom improvement and low recurrence rates.

Keywords:
arachnoid cystextraduralintraduralintramedullaryspine

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Area of Science:

  • Neurosurgery
  • Neurology
  • Radiology

Background:

  • Spinal arachnoid cysts are uncommon lesions, predominantly affecting the thoracic and thoracolumbar spine.
  • Magnetic resonance imaging (MRI) is crucial for diagnosing spinal arachnoid cysts, aiding in localization and understanding their origin.

Purpose of the Study:

  • To analyze the demographics, clinical presentations, surgical treatments, and outcomes of patients with spinal arachnoid cysts.
  • To evaluate the effectiveness of surgical management for symptomatic spinal arachnoid cysts.

Main Methods:

  • A retrospective analysis of 22 patients with symptomatic spinal arachnoid cysts from January 2003 to December 2021.
  • Radiological investigations, including MRI, were used for diagnosis and classification (Nabors classification). Surgical techniques were graded post-operatively.

Main Results:

  • The study included 22 patients (11 male, 11 female) with a mean age of 34.7 years.
  • Common symptoms included lower limb weakness (50%), quadriparesis/spasticity (32%), and bladder/bowel incontinence (14%).
  • Surgical outcomes showed complete improvement in symptoms at 1-year follow-up, with no recurrence observed. Complete excision was performed in 17 patients.

Conclusions:

  • Spinal arachnoid cysts are rare, typically located in the thoracic/thoracolumbar regions.
  • Conservative management may be suitable for asymptomatic cysts; however, symptomatic cysts benefit from surgical intervention with low recurrence and complication rates.
  • While optimal surgical techniques are debated, all operative procedures resulted in symptom improvement.