Endoscopic Study for the Pterygopalatine Fossa Anatomy

Li, Jiping; Xu, Xiaowu; Wang, Jiadong; Jing, Xiaojie; Guo, Qinhua; Qiu, Yongming

doi:10.1097/scs.0b013e3181a2d9c8

Cited by 13 publications

(9 citation statements)

References 14 publications

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“…The latter author mentioned that apart from the comments about the bony crest of the middle nasal turbinate, it was also noted that in 30 (55.6%) specimens the bony crest of the superior nasal turbinate was pointing towards the superior border of the SPF. This finding has also been reported by (Li et al [15]. In addition, ethmoidal crest was present in 100% of the cadavers, being anterior to the SPF in 98.4% of the cases [18].…”

Section: Discussionsupporting

confidence: 88%

“…The shape of the sphenopalatine foramen (SPF) predicts the size of the sphenopalatine artery [15]. The SPF consists of a notch on the superior border of perpendicular plate of the palatine bone, between the orbital and sphenoid processes; this notch becomes a foramen at the point where the palatine bone articulates with the sphenoid bone in the lateral nasal wall.…”

Section: Introductionmentioning

confidence: 99%

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The sphenopalatine foramen in man: anatomical, radiological and endoscopic study

El-Shaarawy

Hassan

2018

Folia Morphol

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There are variation of the number, shape and site of the SPF, and consequently of the branches of the sphenopalatine artery, and this may explain the surgical failure in management of severe epistaxis. The data obtained from the current work support the predication of more than one sphenopalatine ar-teries and gives ample knowledge on the endoscopic study of the lateral nasal wall and consequently the surgical treatment of severe epistaxis. (Folia Morphol 2018; 77, 2: 345-355).

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Section: Discussionsupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

The sphenopalatine foramen in man: anatomical, radiological and endoscopic study

El-Shaarawy

Hassan

2018

Folia Morphol

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“…The palatovaginal canal contained the pharyngeal artery and the pharyngeal nerve (arising from the pterygopalatine ganglion). 11 12 13…”

Section: Methodsmentioning

confidence: 99%

Comparative Analysis of Surgical Exposure among Endoscopic Endonasal Approaches to Petrosectomy: An Experimental Study in Cadavers

Loymak

Belykh

Abramov

et al. 2022

J Neurol Surg B Skull Base

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Objectives Endoscopic endonasal approaches (EEAs) for petrosectomies are evolving to reduce perioperative brain injuries and complications. Surgical terminology, techniques, landmarks, advantages, and limitations of these approaches remain ill defined. We quantitatively analyzed the anatomical relationships and differences between EEA exposures for medial, inferior, and inferomedial petrosectomies. Design This study presents anatomical dissection and quantitative analysis. Setting Cadaveric heads were used for dissection. EEAs were performed using the medial petrosectomy (MP), the inferior petrosectomy (IP), and the inferomedial petrosectomy (IMP) techniques. Participants Six cadaver heads (12 sides, total) were dissected; each technique was performed on four sides. Main Outcomes and Measures Outcomes included the area of exposure, visible distances, angles of attack, and bone resection volume. Results The IMP technique provided a greater area of exposure (p < 0.01) and bone resection volume (p < 0.01) when compared with the MP and IP techniques. The IMP technique had a longer working length of the abducens nerve (cranial nerve [CN] VI) than the MP technique (p < 0.01). The IMP technique demonstrated higher angles of attack to specific neurovascular structures when compared with the MP (midpons [p = 0.04], anterior inferior cerebellar artery [p < 0.01], proximal part of the cisternal CN VI segment [p = 0.02]) and IP (flocculus [p = 0.02] and the proximal [p = 0.02] and distal parts [p = 0.02] of the CN VII/VIII complex) techniques. Conclusion Each of these approaches offers varying degrees of access to the petroclival region, and the surgical approach should be appropriately tailored to the pathology. Overall, the IMP technique provides greater EEA surgical exposure to vital neurovascular structures than the MP and the IP techniques.

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“…The ‘Y’ structure formed by the pterygopalatine ganglion, the maxillary nerve branch, the nerve of the pterygoid canal and the pterygopalatine nerve is an important anatomical landmark [16]. The pterygopalatine nerve travels in the greater palatine canal, the latter being a passageway for the pterygopalatine fossa and the oral cavity.…”

Section: Discussionmentioning

confidence: 99%

A Novel Method for Three-Dimensional Analysis of Endoscopic Spatial Relationships of Pterygopalatine Fossa Structures and Associated Regions

Feng¹,

Gao²,

Jiang³

et al. 2012

ORL

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Background: The spatial orientation rules of the important skull base structures are essential for performing endoscopic surgery. However, there is no satisfactory three-dimensional (3-D) anatomy study available to the surgeon at present. The aims of this study are to construct a new method to learn the spatial orientation of anatomical features under endoscopy and to help the surgeon establish a 3-D image of skull base structures in his mind. Methods: A modified MicronTracker navigation system was used to measure the pitch angle, direction angle and distance from the reference points to various anatomical landmarks of the pterygopalatine fossa and related structures (PPFRS) at the skull base in 10 fresh cadavers (20 sides). Results: The location data of the positions of the major landmarks were acquired and a digital model of the anatomical structures of the PPFRS was built, which can be moved, whirled or demonstrated easily. Conclusion: It is practical to measure the positions of the anatomical structures of the PPFRS with a modified binocular vision-based MicronTracker navigation system. It is a valuable exploration tool to help the surgeon establish the orientation of surgical landmarks in his mind by the 3-D parameters and model.

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Endoscopic Study for the Pterygopalatine Fossa Anatomy

Abstract: Endoscopic PPF surgery via the middle nasal meatus-sphenopalatine foramen approach is safe, and the ethmoidal crest, sphenopalatine foramen, and Y structure with the pterygopalatine ganglion in the center are important anatomic landmarks that can be referred to during the surgery.

Cited by 13 publications

References 14 publications

The sphenopalatine foramen in man: anatomical, radiological and endoscopic study

The sphenopalatine foramen in man: anatomical, radiological and endoscopic study

Comparative Analysis of Surgical Exposure among Endoscopic Endonasal Approaches to Petrosectomy: An Experimental Study in Cadavers

A Novel Method for Three-Dimensional Analysis of Endoscopic Spatial Relationships of Pterygopalatine Fossa Structures and Associated Regions

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