Mandibular nerve entrapment in the infratemporal fossa

Piagkou, Maria; Demesticha, Theano; Piagkos, Giannoulis; Androutsos, Georges; Skandalakis, Panajiotis N.

doi:10.1007/s00276-010-0706-5

Cited by 26 publications

(26 citation statements)

References 35 publications

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“…Pterygospinous bar ridge separates the trunk of lingual into anterior and posterior branches. Anterior fibres may get compressed because of their course between the tensor veli palatini muscle and the bony ridge [31] or because of a large lateral pterygoid plate [32][33][34].…”

Section: Discussionmentioning

confidence: 99%

Foramen of Civinini: A New Anatomical Guide for Maxillofacial Surgeons

Saran

Ananthi²,

Subramaniam³

et al. 2013

JCDR

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Introduction: Study on Morphometric and radiological aspect on existence of foramen of civinini. Sphenoid bone comprises of some rare ossified ligaments, may encounter difficulty in surgical procedures. Incidence of Pterygospinous bars various with different racial groups and they are genetically controlled. Complete ossification of pterygospinous ligament form foramen of civinini. Entrapments of vessels or nerves may occur due to existence of pterygospinous bar. The bar may locate medially or inferiorly to formen ovale as seen in Hawaiian and lemurs. Co-existence of bar with the wide lateral pterygoid plate exhibits development of the bar from herbivore, carnivore and old world monkeys. Comparatively absence or small spine of civinini noted in new world monkeys, rodents and platyrrhines. Pterygospinousbar represents the phylogenetic remnant of Human beings. Material and Methods:By using digital vernier caliper, the measurements of length, width of the pterygospinous bar and area of foramen of civinini including the length and breadth of lateral pterygoid plate were measured. Using X-rays the radiological view was determined.Results: In this study from 160 cases of skull and sphenoid bones revealed that complete and incomplete foramen of civinini in 1.25% and 7.5% of cases respectively. Peculiarly accessory foramen of civinini noticed in 1.25% of cases. Maximum area of foramen of civinini was 94.2mm 2

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Section: Discussionmentioning

confidence: 99%

Foramen of Civinini: A New Anatomical Guide for Maxillofacial Surgeons

Saran

Ananthi²,

Subramaniam³

et al. 2013

JCDR

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“…It normally pierces the posterior half of the buccinators muscle to arborize extensively on the buccal surface of the cheek (Tubbs et al, ). However, some authors reported that the buccal nerve was a mixed nerve, which provide the branches to the lateral pterygoid muscle and temporal muscle (Kim et al, ; Piagkou et al, ; Davies et al, ).…”

Section: Anatomymentioning

confidence: 99%

“…It is generally described that the nerve to the lateral pterygoid nerve originates mainly from the buccal nerve (Fig. A) (Gray and Williams, ; Kim et al, ; Piagkou et al, ). It is the most inconsistent of all the individual branches of the entire trigeminal nerve (Shankland, ).…”

Section: Anatomymentioning

confidence: 99%

Microsurgical anatomy of the trigeminal nerve

et al. 2013

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The objective of this study is to review surgical anatomy of the trigeminal nerve. We also demonstrate some pictures involving the trigeminal nerve and its surrounding connective and neurovascular structures. Ten adult cadaveric heads were studied, using a magnification ranging from 3× to 40×, after perfusion of the arteries and veins with colored latex. The trigeminal nerve is the largest and most complex of the cranial nerves. It serves as a major conduit of sensory input from the face and provides motor innervation to the muscles of mastication. Because of its size and complexity, it is essential to have thorough knowledge of the nerve before diagnoses and treatment of the pathologic processes in the orofacial, temporomandibular, infratemporal, and pterygopalatine areas. The trigeminal nerve is encountered with imaging or surgery of the skull base surgery. Thus, a comprehensive knowledge of the anatomy of the trigeminal nerve is crucial for performing the surgical procedures without significant complication.

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“…Compression of motor branches of mandibular nerve can lead to paresis or weakness of the innervated muscles. 11 Elongation of the lateral lamina of the pterygoid process could result in weakening of the medial pterygoid muscle and paresthesia of the inner aspect of the cheek. Probable compression of the lingual nerve could lead to the weakening of general sensation from anterior two-thirds of the tongue unilaterally or may cause neuralgia.…”

Section: Discussionmentioning

confidence: 99%

“…Anterior fibers may get compressed because of their course between the tensor veli palatini muscle and the bony ridge 20 or because of a large lateral pterygoid plate. 11,21,22…”

Section: Discussionmentioning

confidence: 99%

Study of Pterygospinous and Pterygoalar Bars in Relation to Foramen Ovale in Dry Human Skulls

Singh

Niranjan

2019

National Journal of Clinical Anatomy

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Background Anatomical knowledge of bony bridges around the foramen ovale may be helpful for diagnostic and invasive neurosurgical procedures like electroencephalogram analysis, trigeminal rhizotomy, biopsy of cavernous sinus tumors, and mandibular nerve block.Lateral pterygoid plate forms an important landmark for mandibular anesthesia; therefore, any variation related to lateral pterygoid plate is likely to create confusion during the maneuver of anesthesia. Aims and Objective The aim of the study was to explore any bony obstacle within and around Foramen ovale. Obstacles in form of ossified complete or incomplete ligaments. Additional foramina formed by ligaments or any bony enlargement might disturb the structures passing through the Foramen ovale. Methods Around 530 dried crania (from medical colleges in Uttarakhand and Uttar Pradesh) were observed to find ossified ligaments and foramen formed by them. Crania associated with bilateral enlarged lateral pterygoid plate other than the average width of 1.5 cm were included in this study. Length of ligaments and width of pterygoid plate were measured by digital Vernier calipers. Results Out of 530 crania, unilateral 52 ossified pterygospinous ligament (incomplete 31 and complete 21) were observed. Among them some rare variation was found along with ossified pterygospinous and pterygoalar ligament, one cranium along with unilateral pterygospinous bar was also having bar within foramen ovale, forming an accessory osseous compartment, found to be rare kind of variation. Another unilateral complete pterygospinous bar was enclosing two foramens instead of one. Only single cranium was found to have pterygoalar bar, related medial to foramen ovale. One cranium was associated with bilateral enlarged lateral pterygoid plate (i.e., 2.5 cm) was also found to be obliterating the space, that is, retropharyngeal and parapharyngeal space for surgeons. Conclusion This study would provide the anatomical knowledge of these bony bridges around the foramen ovale and may be helpful for diagnostic and neurosurgical procedure like microvascular decompression by percutaneous trigeminal rhizotomy for trigeminal neuralgia, percuatneous biopsy of cavernous sinus tumor and mandibular nerve block by lateral subzygomatic route. Thus, lateral pterygoid plate forms an important landmark for mandibular anesthesia.

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Mandibular nerve entrapment in the infratemporal fossa

Cited by 26 publications

References 35 publications

Foramen of Civinini: A New Anatomical Guide for Maxillofacial Surgeons

Foramen of Civinini: A New Anatomical Guide for Maxillofacial Surgeons

Microsurgical anatomy of the trigeminal nerve

Study of Pterygospinous and Pterygoalar Bars in Relation to Foramen Ovale in Dry Human Skulls

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