The Occipitalis Muscle as an Adjunct Superficial Landmark for the Transverse Sinus and Transverse-Sigmoid Junction: An Anatomical Study With Application to Posterior Cranial Fossa Surgery
dc.contributor.author
dc.date.accessioned
2024-01-31T16:06:53Z
dc.date.available
2024-01-31T16:06:54Z
dc.date.issued
2023-05-30
dc.identifier.issn
2168-8184
dc.identifier.uri
dc.description.abstract
Introduction: Although neuronavigation systems are widely used for identifying deep intracranial structures, additional superficial anatomical landmarks can be useful when this technology is not available or is not working properly. Herein, we investigate the potential of the occipitalis muscle (OM), rarely mentioned in neurosurgical literature, as a superficial landmark for the transverse sinus (TS) and transverse-sigmoid sinus junction (TSJ). Methods: Eighteen adult cadaveric heads underwent dissection. The borders of the OM were identified and measured. The muscle was then removed and the bone underlying the muscle was drilled. The relationships between the OM and the underlying dural venous sinuses were then investigated by using a surgical microscope. Results: The OM is a quadrangular-shaped muscle, that invariably crosses the lambdoid suture, showing relationships with the TS inferiorly and the TSJ laterally. The medial border was located a mean of 2.7 cm from the midline and its lower edge was a mean of 1.6 cm above the TS. The inferior border was found between the lambdoid suture and the superior nuchal line in all the specimens. The medial half of the inferior margin was placed on average 1.1 cm superiorly to the TS while the lateral margin ran just above or over the TS. The lateral border was located a mean of 1.1 cm medially to the asterion and approximated the mastoid notch, being within 1-2 cm from it. The TSJ was between 2.1 and 3.4 cm lateral to OM lateral border. Conclusion: A combination of superficial anatomical landmarks can be useful for surgical planning. We found that the OM represents a valuable aide for neurosurgeons and is a reliable landmark for the deeper-lying TS and TSJ. Keywords: anatomy; landmark; neurosurgery; occipitalis muscle; transverse sigmoid sinus junction; transverse sinus
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
Springer Nature
Springer Nature Group
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Reproducció digital del document publicat a: https://doi.org/10.7759/cureus.39723
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Cureus, 2023, vol. 15, num. 5, p. e39723
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Articles publicats (D-CM)
dc.rights
Reconeixement 4.0 Internacional
dc.rights.uri
dc.source
Gilkes, Aishwarya Rajaram-Gilkes, Mathangi Cardona, Juan J Reina de la Torre, Francisco Carrera Burgaya, Ana Iwanaga, Joe Dumont, Aaron S Donofrio, Carmine Antonio Badaloni, Filippo Fioravanti, Antonio Shane Tubbs, R. 2023 The Occipitalis Muscle as an Adjunct Superficial Landmark for the Transverse Sinus and Transverse-Sigmoid Junction: An Anatomical Study With Application to Posterior Cranial Fossa Surgery Cureus 15 5 e39723
dc.title
The Occipitalis Muscle as an Adjunct Superficial Landmark for the Transverse Sinus and Transverse-Sigmoid Junction: An Anatomical Study With Application to Posterior Cranial Fossa Surgery
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/openAccess
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
037851
dc.type.peerreviewed
peer-reviewed