Adult Chiari Malformation Type I: Surgical Anatomy, Microsurgical Technique, and Patient Outcomes

Neurosurg Clin N Am. 2023 Jan;34(1):91-104. doi: 10.1016/j.nec.2022.09.004.

Abstract

In this study, the authors summarize the current knowledge on epidemiology, demographics, risk factors, and prognostic factors that influence outcomes in patients with adult Chiari malformation type I (CM-I) who underwent posterior fossa decompression surgery with duraplasty. Furthermore, they describe the contribution of their research group to the field of adult CM-I treatment, including association of increased body mass index with severity of CM-I and syringomyelia, relevant surgical anatomy, and surgical technique of 270° microsurgical decompression of foramen magnum. The authors also report on common complications in the literature and describe techniques for prevention of complications.

Keywords: 270° decompression; Adult Chiari malformation; Suboccipital ligament.

Publication types

  • Review

MeSH terms

  • Adult
  • Arnold-Chiari Malformation* / complications
  • Arnold-Chiari Malformation* / surgery
  • Decompression, Surgical / methods
  • Foramen Magnum / surgery
  • Humans
  • Plastic Surgery Procedures*
  • Syringomyelia* / complications
  • Syringomyelia* / surgery