Puncture of cerebellar horizontal fissure for retrosigmoid approach: A prospective and quantitative analysis

Chang Kyu Park, Sung Ho Lee, Bong ArmRhee, Seok Keun Choi

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

BACKGROUND: Cerebrospinal fluid (CSF) drainage is important in retrosigmoid approached surgery; however, in some cases, it is not feasible due to cerebellar swelling. OBJECTIVE: To introduce a method, puncture of the horizontal fissure of the cerebellum, which can reduce the cerebellum to easily obtain a good operative corridor and slowly drain CSF. METHODS: Between January andDecember 2014,we estimated the precise location of the horizontal fissure in 56 patientswhounderwent surgery via a retrosigmoid approach. Then, we collected and analyzed CSF drained by puncturing the horizontal fissure. We investigated whether a good operative corridor was obtained with this method. RESULTS: The location of the precise horizontal fissure was a mean of 3.97 mm caudal to transverse sinus and the mean amount of CSF drained in 56 patients was 50.4 mL. A good corridor was obtained in 46 (82.1%) of 56 patients without additional cistern puncture. CONCLUSION: The puncture of the horizontal fissure can be useful in retrosigmoid approach surgery. Moreover, inexperienced surgeons can use this method to effectively avoid injury of the cerebellum.

Original languageEnglish
Pages (from-to)689-692
Number of pages4
JournalOperative Neurosurgery
Volume13
Issue number6
DOIs
Publication statusPublished - 1 Dec 2017

Bibliographical note

Publisher Copyright:
© 2017 by the Congress of Neurological Surgeons.

Keywords

  • Cerebellum
  • Cerebrospinal fluid
  • Horizontal fissure
  • Microvascular decompression surgery
  • Posterior cranial fossa

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