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Jugular Bulb Anatomy for Lateral Skull Base Approaches
Ela Cömert1, Caner Kiliç2, Ayhan Cömert3
1Department of Otolaryngology, Kirikkale University School of Medicine, Kirikkale.
The Journal of Craniofacial Surgery
|June 27, 2018
Summary
The jugular bulb
Area of Science:
- Anatomy
- Neurosurgery
- Otolaryngology
Background:
- Detailed anatomical relationships of the jugular bulb are crucial for safe surgical management.
- Understanding jugular bulb anatomy is key for procedures involving the temporal bone.
Purpose of the Study:
- To define the precise anatomical relations of the jugular bulb with surrounding structures.
- To provide data for safe management and surgical planning of the jugular bulb.
Main Methods:
- Dissection of 35 formalin-perfused cadaveric temporal bones via translabyrinthine approach.
- Selection criteria included well-pneumatized bones without neurovascular variations on CT scan.
Main Results:
- The jugular bulb's dome location varied: under the facial nerve (60%), in the mastoid cavity (22.9%), and tympanic cavity (17.1%).
- A significant difference in mastoid cortex-lateral semicircular canal measurement was noted between jugular bulb positions in the mastoid cavity and under the facial nerve (P=0.04).
Conclusions:
- High variability in jugular bulb position necessitates precise anatomical knowledge.
- Preoperative radiologic assessment of potential variations is essential for safe surgical approaches and individual treatment planning.
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