The hypoglossal nerve. Its relationship to the temporal bone and jugular foramen

Shaia, Fred T.; Graham, Malcolm D.

doi:10.1288/00005537-197707000-00015

Cited by 5 publications

(1 citation statement)

References 2 publications

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“…The canal is directed forward and laterally at a 45˚ angle with the sagittal plane. 30 The extracranial end of the hypoglossal canal is located immediately above the junction of the anterior and middle one-third of the occipital condyle and medial to the jugular foramen. The average length of the longest axis of the condyle is 21 mm (range 18-24 mm) and the average distance between the posterior edge of the occipital condyle and the posterior border of the intracranial end of the hypoglossal canal is 8.4 mm (range 6-10 J. Neurosurg.…”

Section: Extradural Stagementioning

confidence: 99%

Microsurgical anatomy of the transcondylar, supracondylar, and paracondylar extensions of the far-lateral approach

Wen¹,

Rhoton²,

Katsuta³

et al. 1997

Journal of Neurosurgery

290

200

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Despite a large number of reports of the use of the far-lateral approach, some of the basic detail that is important in safely completing this exposure has not been defined or remains poorly understood. The basic far-lateral exposure provides access for the following approaches: 1) the transcondylar approach directed through the occipital condyle or the adjoining portions of the occipital and atlantal condyles; 2) the supracondylar approach directed through the area above the occipital condyle; and 3) the paracondylar exposure directed through the area lateral to the occipital condyle. The transcondylar approach provides access to the lower clivus and premedullary area. The supracondylar approach provides access to the region of, and medial to, the hypoglossal canal and jugular tubercle. The paracondylar approach, which includes drilling of the jugular process of the occipital bone in the area lateral to the occipital condyle, provides access to the posterior portion of the jugular foramen and to the mastoid on the lateral side of the jugular foramen. In this study, the anatomy important to completing the far-lateral approach and these modifications was examined in 12 cadaveric specimens. In the standard posterior and posterolateral approaches, an understanding of the individual suboccipital muscles is not essential. However, these muscles provide important landmarks for the far-lateral approach and its modifications. Other important considerations include the relationship of the occipital condyle to the foramen magnum, hypoglossal canal, jugular tubercle, the jugular process of the occipital bone, the mastoid, and the facial canal. These and other relationships important to completing these exposures were examined in this study.

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Section: Extradural Stagementioning

confidence: 99%

Microsurgical anatomy of the transcondylar, supracondylar, and paracondylar extensions of the far-lateral approach

Wen¹,

Rhoton²,

Katsuta³

et al. 1997

Journal of Neurosurgery

290

200

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Die Gef�\e der hinteren Sch�delgrube. Anatomie, Pathophysiologie, Klinik ? eine �bersicht

Helms¹

1978

Arch Otorhinolaryngol

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Pathophysiology and tomography of the blood vessels of the posterior cranial fossa gain clinical interest in treatment of diseases of the inner ear, complications of middle ear inflammations, tumors of the pyramid and cerebello-pontine angle. Numerous variations in the arterial venous system restrict neuroradiological procedures. Techniques to treat a thrombosis of the sinuses were developed 50 years ago. Surgical procedures to remove glomus tumors of the pyramid could be improved by new anatomical and surgical experiences. Unilateral neck dissection occasionally alters the blood flow in the sinuses of the posterior cranial fossa causing serious complications.

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Far Lateral Transcondylar Approach for Lesions of the Foramen Magnum

Oliveira¹,

Wen²,

Tedeschi³

et al. 2003

Techniques in Neurosurgery

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The hypoglossal nerve. Its relationship to the temporal bone and jugular foramen

Abstract: The serpentine course of the hypoglossal nerve has been described and illustrated. Clinical and surgical correlations are reviewed.

Cited by 5 publications

References 2 publications

Microsurgical anatomy of the transcondylar, supracondylar, and paracondylar extensions of the far-lateral approach

Microsurgical anatomy of the transcondylar, supracondylar, and paracondylar extensions of the far-lateral approach

Die Gef�\e der hinteren Sch�delgrube. Anatomie, Pathophysiologie, Klinik ? eine �bersicht

Far Lateral Transcondylar Approach for Lesions of the Foramen Magnum

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