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Lateral suboccipital retrosigmoid retrocondylar approach for foramen magnum meningiomas

Jose Carlos Lynch1, Mariangela Barbi Gonçalves2, Celestino Esteves Pereira1

  • 1Department of Neurosurgery, Copa D'or Hospital, Rio de Janeiro, Brazil.

Journal of Craniovertebral Junction & Spine
|November 17, 2018
PubMed
Abstract

Insights

The lateral suboccipital retrocondylar approach is a safe and effective surgical technique for foramen magnum meningiomas (FMMs), achieving high rates of gross total resection and favorable outcomes.

Area of Science:

  • Neurosurgery
  • Oncology
  • Surgical Technique

Background:

  • Foramen magnum meningiomas (FMMs) are tumors located at the base of the skull.
  • Surgical resection is the primary treatment for FMMs.
  • The lateral suboccipital retrocondylar approach is a less invasive option for FMM removal.

Purpose of the Study:

  • To describe the surgical technique for FMMs using the lateral suboccipital retrocondylar approach.
  • To analyze the safety and outcomes of this approach for FMMs.

Main Methods:

  • A retrospective review of 15 patients with FMMs treated between 1986 and 2016.
  • All patients underwent surgery using the lateral suboccipital retrocondylar approach.
  • Outcomes were assessed using the Glasgow Outcome Scale and extent of resection.

Main Results:

  • The study included 12 female and 3 male patients, aged 33-63 years.
  • No operative deaths occurred. Two patients died during the follow-up period (mean 10.2 years).
  • Gross total resection was achieved in 13 patients (86.7%), with 12 patients (80%) achieving a favorable outcome (Glasgow Outcome Scale 4 or 5).

Conclusions:

  • The lateral suboccipital retrocondylar approach is a safe and effective method for FMM resection.
  • Meticulous microsurgical technique is crucial for successful outcomes.
  • This approach allows for safe removal of FMMs without condylar resection.
Keywords:
Foramen magnumforamen magnum meningiomasmicrosurgeryretrocondylar approachsuboccipital approach

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