Surgical Anatomy for the Endoscopic Endonasal Approach to the Ventrolateral Skull Base

Oyama, Kenichi; Tahara, Shigeyuki; Hirohata, Taizo; Ishii, Yudo; Prevedello, Daniel M.; Carrau, Ricardo L.; Froelich, Sébastien; Teramoto, Akira; Morita, Akio; Matsuno, Akira

doi:10.2176/nmc.ra.2017-0039

Cited by 29 publications

(18 citation statements)

References 34 publications

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“…The parapharyngeal carotid artery enters the carotid canal (CC) behind the FS and foramen ovale. During transpterygoid infratemporal fossa approach, the positions of these surgical landmarks can be used to prevent ICA injury [13].…”

Section: Surgical Landmarks and Ossification Of The Squamous Portionmentioning

confidence: 99%

“…The petrous segment of the ICA within the CC has four anatomic parts, called vertical, posterior genu, horizontal, and anterior genu. During endoscopic endonasal surgery, the junctional part of the ET at the sphenoid spine and FS is crucial landmark to identify and protect the petrous segment of the ICA [13]. The anatomical and surgical relationships between the ET and the petrous segment of the ICA are as follows:…”

Section: Surgical Landmarks On the Anterior Surface Of The Petrous Pomentioning

confidence: 99%

“…Malignancies that involve the petrous apex or the carotid artery require the extended endoscopic endonasl approach (EEA). During this procedure, the medial and lateral optico-carotid recesses in the cavernous sinus and the vidian canal (VC) are vital surgical landmarks, which allow to identify the position of the ICA for safe surgical resection near the ICA [13].…”

Section: Surgical Landmarks On the Anterior Surface Of The Petrous Pomentioning

confidence: 99%

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Surgical Anatomy of the Temporal Bone

Açar¹,

Çiçekcibaşı²

2021

Oral and Maxillofacial Surgery

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Numerous neurological lesions and tumors of the paranasal sinuses and oral cavity may spread into the middle and posterior cranial fossae through the anatomical apertures. For the appropriate management of these pathologies, many extensive surgical approaches with a comprehensive overview of the anatomical landmarks are required from the maxillofacial surgery's point of view. The surgical significance lies in the fact that iatrogenic injury to the petrous segment of the temporal bone including the carotid artery, sigmoid sinus, and internal jugular vein, can lead to surgical morbidity and postoperative pseudoaneurysm, vasospasm, or carotidcavernous fistula. To simplify understanding complex anatomy of the temporal bone, we aimed to review the surgical anatomy of the temporal bone focusing on the associations between the surface landmarks and inner structures. Also, breaking down an intricate bony structure into smaller parts by compartmental approach could ease a deep concentration and navigation. To identify the anatomic architecture of the temporal bone by using reference points, lines and compartments can be used to supplement anatomy knowledge of maxillofacial surgeons and may improve confidence by surgical trainees. Especially, this systematic method may provide an easier way to teach and learn surgical spatial structure of the petrous pyramid in clinical applications.

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Section: Surgical Landmarks and Ossification Of The Squamous Portionmentioning

confidence: 99%

Section: Surgical Landmarks On the Anterior Surface Of The Petrous Pomentioning

confidence: 99%

Section: Surgical Landmarks On the Anterior Surface Of The Petrous Pomentioning

confidence: 99%

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Surgical Anatomy of the Temporal Bone

Açar¹,

Çiçekcibaşı²

2021

Oral and Maxillofacial Surgery

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“…[ 34 ] EEAs in the midline skull base allow access to access the anterior middle fossa through the cribriform plate,[ 32 35 ] the suprasellar cistern through the planum sphenoidale and tuberculum sellae, and the prepontine and premedullary cisterns through the clivus. They may also be used for lesions of the paramedian skull base, depending on the surgeon's expertise,[ 29 36 ] and allow access to the ventral cervicomedullary junction, Meckel's cave, the middle cranial fossa, the petrous apex, the jugular foramen, and the pterygopalatine and infratemporal fossae.…”

Section: Skull Base Approachmentioning

confidence: 99%

A review of common endoscopic intracranial approaches

et al. 2020

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With the evolution of surgical techniques, endoscopy has emerged as a suitable alternative to many instances of more invasive methods. In this review article, we aim to discuss the endoscopic advancements, procedural details, indications, and outcomes of the most commonly practiced neuroendoscopic procedures. We have also summarized the uses, techniques, and challenges of neuroendoscopy in select neurosurgical pathologies.

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“…1 Moreover, adequate exposure of lesions infiltrating the Eustachian tube or UPPS require the mobilization or removal of the soft tissue contents of the pterygopalatine fossa. 16,17 This leaves significant undesirable sequelae, as sacrificing the vidian and greater palatine nerves in pterygopalatine fossa may cause post-operative xerophthalmia and a variety of sensory dysfunctions of the palate (ie, hypoesthesia, anesthesia or deafferentation pain). 10,18 Furthermore, the lateral and medial pterygoid muscles also need to be transected or resected when approaching the lateral ITF (masticator space), which may contribute to postoperative trismus.…”

Section: Introductionmentioning

confidence: 99%

Anatomy based corridors to the infratemporal fossa: Implications for endoscopic approaches

London

Prevedello

et al. 2019

Head & Neck

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Background: The infratemporal fossa (ITF) represents an area densely packed with neurovascular structures within irregular boundaries. The goal of this study was to classify the ITF into zones corresponding to its anatomical spaces and the order in which they are encountered during an endonasal approach (anteroposterior axis). Methods: Six cadaveric specimens (12 sides) with injected colored latex were dissected. Following an endoscopic medial maxillectomy and Denker's approach, a progressive exploration of the masticator space and upper parapharyngeal space was completed. A classification of the ITF based on welldefined spaces was ascertained. Results: The ITF was divided into five zones:• Zone 1 (retromaxillary space)-space lying between the posterolateral wall of the maxillary sinus and the temporalis and pterygoid muscles. • Zone 2 (superior interpterygoid space)-area including the superior head of the lateral pterygoid muscle, V 3 , and foramen ovale. • Zone 3 (inferior interpterygoid space)-includes the inferior head of lateral pterygoid muscle, medial pterygoid, and temporalis muscles, and the space enclosed by these muscles. • Zone 4 (temporo-masseteric space)-space lateral to the temporalis muscle (comprising fat mostly). • Zone 5 (tubopharyngeal space)-includes the Eustachian tube, tensor, and levator veli palatini muscles, and structures in upper parapharyngeal space. Conclusion: The ITF can be visualized as five zones based on spaces enclosed by the masticator muscles and upper parapharyngeal structures. This novel classification system is useful to guide endoscopic approaches to the ITF, while decreasing the potential for injury of neurovascular structures and pterygoid muscles. K E Y W O R D S endoscopic Denker's approach, infratemporal fossa, muscles of mastication, pterygoid muscle, transpterygoid Lifeng Li and Nyall R. London Jr. contributed equally to this work.

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Surgical Anatomy for the Endoscopic Endonasal Approach to the Ventrolateral Skull Base

Cited by 29 publications

References 34 publications

Surgical Anatomy of the Temporal Bone

Surgical Anatomy of the Temporal Bone

A review of common endoscopic intracranial approaches

Anatomy based corridors to the infratemporal fossa: Implications for endoscopic approaches

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