Anatomical study of surgical approaches for treating brain tinnitus by decompression of the internal jugular vein
Objective To elucidate the important anatomical structures involved in the surgical approach of internal jugular vein decompression through microscopic anatomy research,to clarify the spatial relationship between the transverse process of the atlas vertebra(C1)and surrounding structures,and to provide anatomical evidence for performing internal jugular vein decompression surgery for the treatment of pulsatile tinnitus.Methods Three adult cadaveric head specimens(6 sides in total)were selected.Under the surgical microscope,the surrounding structures were dissected and microscopically observed with the transverse process of the atlas vertebra as the central reference point to determine the morphology and relationships of the surrounding anatomical structures.Results The study revealed the clear exposure of the sternocleidomastoid muscle,posterior belly of the digastric muscle,and identification of the internal carotid artery,internal jugular vein,and accessory nerve of the upper neck using the transverse process of the atlas vertebra as a landmark.The exposure of the lateral skull base and mastoid process showed relatively fixed anatomical relationships between the transverse process of the atlas vertebra and surrounding muscles,bones,vessels,and nerves.Conclusions The transverse process of the atlas vertebra can serve as an important anatomical landmark in internal jugular vein decompression surgery.Familiarity with and understanding of the relationship between the transverse process of the atlas vertebra and surrounding structures can assist clinicians in accurate identification and protection of surrounding vital tissue structures during surgery.
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