Microsurgical anatomy of the jugular process as an anatomical landmark to access the jugular foramen: A cadaveric and radiological study

Noritaka Komune, Satoshi Matsuo, Koichi Miki, Ken Matsushima, Yojiro Akagi, Ryota Kurogi, Koji Iihara, Toshio Matsushima, Tooru Inoue, Takashi Nakagawa

研究成果: Contribution to journalArticle査読

5 被引用数 (Scopus)

抄録

BACKGROUND: The jugular process forms the posteroinferior surface of the jugular foramen and is an important structure for surgical approaches to the foramen. However, its morphological features have not been well described in modern texts. OBJECTIVE: To elucidate the microsurgical anatomy of the jugular process and examine its morphological features. METHODS: Five adult cadaveric specimens were dissected in a cadaveric study, and computed tomography data from 31 heads (62 sides) were examined using OsiriX (Pixmeo SARL, Bernex, Switzerland) to elucidate the morphological features of the jugular process. RESULTS: The cadaveric study showed that it has a close relationship with the sigmoid sinus, jugular bulb, rectus capitis lateralis, lateral atlanto-occipital ligament, and lateral and posterior condylar veins. The radiographic study showed that 9/62 sigmoid sinuses protruded inferiorly into the jugular process and that in 5/62 sides, this process was pneumatized. At the entry of the jugular foramen, if the temporal bone has a bulb-type jugular bulb, and if surgery concerns the right side of the head, the superior surface of the jugular process is more likely to be steep. CONCLUSION: The jugular process forms the posteroinferior border of the jugular foramen. Resection of the jugular process is a critical step for opening the jugular foramen from the posterior and lateral aspects. Understanding the morphological features of the jugular process, and preoperative and radiographical examination of this process thus help skull base surgeons to access the jugular foramen.

本文言語英語
ページ(範囲)486-495
ページ数10
ジャーナルOperative Neurosurgery
16
4
DOI
出版ステータス出版済み - 4 1 2019

All Science Journal Classification (ASJC) codes

  • 外科
  • 臨床神経学

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