Prevalence and Dimensions of Complete Sella Turcica Bridges and Its Clinical Significance

Brahmbhatt, Ritesh Jyotindra; Bansal, Minaxi; Mehta, Chandrakant; Chauhan, Ketan

doi:10.1007/s12262-012-0800-5

Cited by 8 publications

(11 citation statements)

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“…[17,18] Studies in pediatric populations demonstrated an association between this malformation and the craniofacial deviations, and also reported that the treatment of malocclusions was more complex in these patients. [2,15] Similar to the findings of Al Kofide et al, [14] the differences in length, depth, and diameter were not statistically significant between the males and females in our study. In our study, there was no statistically significant difference in length, depth, and diameter measurements among patients with Class I, II, and III malocclusions.…”

Section: Discussionsupporting

confidence: 89%

“…Please cite this article as: Öktem H, Tuncer N‹, fiençelikel T, Ba¤c› Z‹, Cesaretli S, Arslan A, Gürsel IT, De¤irmenci B. Sella turcica variations in lateral cephalometric radiographs and their association with malocclusions. Anatomy 2018;12(1): [13][14][15][16][17][18][19].…”

Section: Conflict Of Interest Statement: No Conflicts Declaredmentioning

confidence: 99%

“…For the assessment purposes, morphological variations of the sella turcica may be classified under the following headings: normal sella turcica, oblique anterior wall, double contour of the floor, sella turcica bridge, irregularity in the posterior part of the sella turcica, and pyramidal shape of dorsum sella. [11][12][13][14][15] The most common variation of the sella turcica in the orthodontic literature is the sella turcica bridge -the manifestation of the union of the anterior and posterior structures of the sella turcica. The image of this variation may be the display of the calcification of the interclinoid liga- ment or it may be formed by the superimposition of the sellar structures.…”

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confidence: 99%

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Sella turcica variations in lateral cephalometric radiographs and their association with malocclusions

Oktem¹,

Tunçer²,

Sencelikel³

et al. 2018

Anatomy

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The sphenoid bone which is located in the middle of the skull base articulates with most of the bones forming the skull. The so-called corpus sphenoidale is the body of sphenoid bone. The concavity in the middle part of the upper surface of corpus sphenoidale is the hypophyseal fossa, in which the hypophysis lies. [1,2] The hypophyseal fossa is limited by the tuberculum sellae anteriorly and dorsum sellae posteriorly. The two small processes on both sides of the tuberculum sellae are named as middle clinoid processes and the small processes on the superior lateral corners of the dorsum sellae are the posterior clinoid processes. The hypophyseal fossa is examined in three parts, namely, the anterior wall, poste-Abstract Objectives: Classification of the skeletal facial types is performed using certain reference points and planes in lateral cephalometric radiographs to plan orthodontic treatments. One of these reference points is sella turcica which is closely associated with craniofacial bone development. The aim of this study was to identify the association between the sella turcica variations and skeletal Class I, II, and III malocclusions. Methods:This study retrospectively evaluated 94 orthodontic patients (48 males and 46 females) between 14-26 years of age. Lateral cephalometric radiographs of the patients with skeletal Class I, II, and III malocclusions were classified into six groups according to sella turcica morphology: normal sella turcica, oblique anterior wall, double contour of the floor, sella turcica bridge, irregularity in the posterior part, and pyramidal shape of sella turcica. The length, depth, and diameter of sella turcica were measured. Sella turcica variations and radiographs of patients with Class I, II, and III malocclusions were compared statistically. Results:The correlation between the sella turcica variations and skeletal sagittal classification was statistically significant (p=0.017). 36.8% of the radiographs, which were classified as normal sella turcica were classified as Class I patients. There were no statistically significant differences between the skeletal Class I, II, and III malocclusions and sella turcica variations in terms of the length, depth, and diameter. Conclusion:For adequate patient referral and management, orthodontists should recognize sella turcica variations in lateral cephalometric radiographs, and these findings should arise an index of suspicion for associated pathologies, especially of the hypophyseal gland.

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Section: Discussionsupporting

confidence: 89%

Section: Conflict Of Interest Statement: No Conflicts Declaredmentioning

confidence: 99%

mentioning

confidence: 99%

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Sella turcica variations in lateral cephalometric radiographs and their association with malocclusions

Oktem¹,

Tunçer²,

Sencelikel³

et al. 2018

Anatomy

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“… Boyan et al [ 27 ] 34 dry skulls Turkey Adults 5.9% 5.9% 11.8% Neurosurgical implications. Brahmbhatt et al [ 28 ] 50 dry skulls India Adults – 2% (1/50 skulls) – Need for awareness amongst radiologists and neurosurgeons. Cederberg et al [ 23 ] 255 lateral cephalometric radiographs USA 8–76 years 38.4% 8.2% – Weak association between advancing age and degree of mineralisation.…”

Section: Resultsmentioning

confidence: 99%

Skull base ligamentous mineralisation: evaluation using computed tomography and a review of the clinical relevance

et al. 2019

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Objectives To determine the frequency, morphologic and demographic characteristics, and clinical relevance of the mineralisation of six skull base ligaments (interclinoid, caroticoclinoid, petrosphenoid, posterior petroclinoid, pterygospinous, and pterygoalar). Methods This is a retrospective review of 240 CT scans of the paranasal sinuses (ages 6–80 years). A limited systematic review was performed primarily using Embase and Medline databases. Results Ligamentous mineralisation was well delineated on CT and occurred at ≥ 1 location in 58.3% of patients. There was a nonsignificant trend towards a greater incidence with advancing age. The interclinoid and posterior petroclinoid ligaments were most commonly mineralised (22.1% and 18.3%, respectively); the petrosphenoid and pterygoalar ligaments were least frequently mineralised (10.8% and 6.3%, respectively). The mean age of patients with posterior petroclinoid mineralisation was significantly greater than those with interclinoid and petrosphenoid mineralisation and was not seen in patients aged 6–20 years. The literature review highlighted the clinically relevant potential for mineralised ligaments to cause barriers to surgical access (e.g. to the foramen ovale), increase the risk of neurovascular injury during surgery at the skull base (e.g. during anterior clinoidectomy), and predispose to neural impingement. Conclusions Skull base ligamentous mineralisation is commonly encountered on CT imaging. Given the potentially significant clinical implications, an understanding of the morphological appearances is of importance to those planning interventions at the skull base. To the authors’ knowledge, this study is the first to comprehensively evaluate such a wide range of skull base ligaments using CT. For some ligaments, the incidence on CT has not been previously described.

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“…[1,[4][5][6][7][8][9][10][11][12][13][14][15][16] However, Henle was not the first to describe the CCF.…”

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The erroneous eponym of the carotico-clinoid foramen of Henle: attribution is due to Alexander Monro (primus)

Zdilla¹

2017

Anatomy

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The carotico-clinoid foramen is an inconsistent anatomical variation created by an osseous bridging between the anterior and middle clinoid processes that encircles the internal carotid artery. Due to its neurosurgical importance, several articles make note of the foramen. When describing the carotico-clinoid foramen, articles attribute its first description to Jakob Henle in 1855 and, likewise, use the eponym carotico-clinoid foramen of Henle. This report presents evidence that Henle was not the first to describe the carotico-clinoid foramen. Rather, the foramen was first described by Alexander Monro (primus) over a century earlier in 1726. Future studies noting the provenance of the carotico-clinoid foramen should attribute its discovery to Monro. Therefore, the eponym carotico-clinoid foramen of Henle should be named the carotico-clinoid foramen of Monro.

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Prevalence and Dimensions of Complete Sella Turcica Bridges and Its Clinical Significance

Cited by 8 publications

References 4 publications

Sella turcica variations in lateral cephalometric radiographs and their association with malocclusions

Sella turcica variations in lateral cephalometric radiographs and their association with malocclusions

Skull base ligamentous mineralisation: evaluation using computed tomography and a review of the clinical relevance

The erroneous eponym of the carotico-clinoid foramen of Henle: attribution is due to Alexander Monro (primus)

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