Evaluation of prevalence and characteristics of ponticulus posticus among Japanese adults: A comparative study between CBCT imaging and lateral cephalogram

Joshi, Vajendra; Matsuda, Yukiko; Kimura, Yasutoshi; Araki, Kazuo; Ishida, Hideki

doi:10.1016/j.odw.2018.04.001

Cited by 4 publications

(14 citation statements)

References 21 publications

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“…The wide range of prevalence for incomplete foramen can be due to the lack of a standard diagnostic criterion. [ 23 ] In this study, 40.6% of men and 59.4% of women had this anomaly, and the relationship between the anomaly and gender was not statistically significant. This finding is similar to those of previous studies.…”

Section: Discussioncontrasting

confidence: 52%

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Prevalence and characteristics of ponticulus posticus and its association with cervicogenic headache and migraine

Ashtari

Razavi

Ghaffari

2022

Journal of Research in Medical Sciences

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Background: Ponticulus posticus (PP) (arcuate foramen) is an abnormal bony bridge in the posterior arch of the atlas, which could possibly cause certain complications such as headache. Our goal was to assess the prevalence and size of PP on lateral cephalometric radiographs and its relationships with cervicogenic headache and migraine. Materials and Methods: This cross-sectional study was a descriptive–analytical type and was performed in Isfahan Azad Dental University. Lateral cephalometric radiographs of 150 patients referred to the radiology department were selected to assess the prevalence and size of the anomaly. A checklist was prepared to evaluate cervicogenic headache and migraine among patients. Results: Our sample consisted of 97 females and 53 males with an age range between 5 and 56 years. The prevalence of PP was 21.3% (12% complete and 9.3% incomplete), and an insignificant difference was noted between the prevalence of complete and incomplete foramen ( P > 0.05). The prevalence of foramen was higher in women (59.4%), but it was not significant. The mean width of complete foramen was 6.40 mm, and the mean heights in individuals with complete and incomplete foramen were 4.71 and 4.84 mm, respectively. Among patients with the anomaly, 43.8% had cervicogenic headache and 9.4% had migraine. There was a significant association between the presence of foramen and both types of headaches ( P < 0.05). However, there was no significant correlation between the shape of anomaly and the presence of cervicogenic headache and migraine ( P > 0.05). Conclusion: Our study showed a high prevalence of PP and its significant association with cervicogenic headache and migraine.

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Section: Discussioncontrasting

confidence: 52%

“…emphasized the effect of genetic causes on the prevalence of this anomaly, but did not report the significance of the prevalence of arcuate foramen anomaly in different age groups. [ 23 ]…”

Section: Discussionmentioning

confidence: 99%

Prevalence and characteristics of ponticulus posticus and its association with cervicogenic headache and migraine

Ashtari

Razavi

Ghaffari

2022

Journal of Research in Medical Sciences

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“…PP also has multiple other names in the medical literature, such as dorsal or posterior ponticle [ 1 ], posterior ponticulus [ 4 ], pons posticus [ 1 ], pons ponticus [ 4 ], sagittal foramen [ 1 , 5 , 6 , 7 ], atlantal posterior foramen [ 5 ], foramen atlantideum [ 1 , 8 ], foramen atlantoideum posterior [ 6 , 7 ], posterior atlantoid foramen, [ 4 ], arcuate foramen [ 1 , 4 , 5 , 7 , 8 ], arcuale foramen [ 1 , 6 , 7 ], atlas bridging [ 4 , 8 ], a variant of Kimmerle’s anomaly [ 1 , 5 , 6 , 7 ], upper retroarticular foramen, [ 5 ], retroarticular canal [ 5 , 6 ], retroarticular foramen [ 4 , 8 ], foramen retroarticulare superior [ 6 ], retroarticular canal of the atlas [ 1 ], canalis vertebralis [ 1 , 5 , 6 , 7 , 8 ], canalis arteriae vertebralis [ 4 ], retroarticular vertebral artery ring [ 1 , 4 , 5 , 6 ], retrocondylar vertebral artery ring [ 5 , 6 ,…”

Section: Introductionmentioning

confidence: 99%

“…PP represents the ossification at the edge of the lateral atlantooccipital membrane, which is inserted on the occipital bone and on the edge of the posterior arch of the atlas [ 9 , 10 ]. Many hypotheses exist to explain the ossification of this membrane, such as congenital [ 4 , 6 , 11 ], genetic mutation [ 4 , 6 , 12 ], post-traumatic genesis [ 12 ], human evolution [ 12 ] with a protective role to the vertebral artery passage during head and neck movements [ 4 ], the result of ossification due to aging [ 4 , 6 ], and due to external mechanical factors [ 6 ] such as carrying heavy objects on the head [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

“…PP surrounds the vertebral artery, periarterial plexus [ 5 ], and the suboccipital nerve [ 4 ]. The compression of one or more neural and vascular structures, including vertebral artery, periarterial plexus, and sub-occipital nerve passing under the PP [ 3 , 4 , 10 ], may explain the presence of diverse symptoms including muscle tension headache [ 4 , 6 , 12 ], cervical migraine [ 3 , 5 , 10 , 13 ], migraine without aura [ 8 ], migraine-like headache [ 2 ], cochlear symptoms (tinnitus and hearing loss) [ 12 ], neurosensory-type hearing loss [ 3 , 4 , 5 , 6 , 10 ], vestibular symptoms (subjective vertigo [ 2 , 3 , 5 , 6 , 8 , 10 , 12 ]), dizziness [ 4 ], ocular symptoms (convergence deficit) [ 12 ], diplopia [ 8 ], throat disorders (dysphagia, dysphonia) [ 12 ], cervicobrachial syndrome [ 12 ], neck pain [ 2 , 3 , 4 , 5 , 6 , 8 , 10 ], shoulder–arm pain [ 3 , 4 , 5 , 6 ], loss of postural muscle tone [ 3 , 4 , 5 ,…”

Section: Introductionmentioning

confidence: 99%

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A New Classification of the Morphology of Complete Ponticulus Posticus on Cone Beam Computed Tomography

Olszewski,

Issa,

Odri

2023

Diagnostics

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The objectives of this retrospective study were to measure the prevalence of complete ponticulus posticus (CPP), to propose a new classification based on two different shapes of CPP, to compare these shapes with age and gender, and to test two different methods of measurements of the diameters of CPP on cone beam computed tomography (CBCT). Material and methods: We used 2012 CBCT scans from Planmeca Promax 3D Mid and Romexis 5.1 software tools to measure the height and width of the CPP, and we measured the surface of the CPP using an ellipse tool. We classified the CPP into “thin” and “thick” shape. Results: the prevalence of CPP was 9.49% with 97 male and 94 female patients. The unilateral type was found in 131 patients, while the bilateral type was found in 60 patients. Intra-observer reliability was evaluated using the intraclass correlation coefficient (ICC). The ICC was 0.875 for height, 0.872 for width, and 0.885 for the ellipse area. Both methods present very good intra-observer reproducibility. The “thin” group tended to be older and significantly more related to female patients. The “thick” group was associated with younger male patients. Conclusions: the proposed classification of CPP may be used when reporting the CBCT large field of view. There is still a need to increase the knowledge on the atlas and on its main variant, such as complete PP.

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Assessments of Prevalence of Ponticulus Posticus, Atlas Posterior Arch Deficiency, Sella Turcica Bridging, Maxillary Canine Impaction, and Associations Among Them in 500 CBCTs of Italian Orthodontic Patients

et al. 2021

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Background: The ponticulus posticus (PP) is an important anomaly of the atlas (C1 vertebra) with a complete or partial bone bridge that transforms the groove of the vertebral artery (VA) into a canal (arcuate foramen). The aim was to retrospectively determine prevalence of PP evaluating morphological features and the possible association with other dentoskeletal anomalies in the midface and neck area such as maxillary canine impaction (MCI), atlas posterior arch deficiency (APAD), and sella turcica bridging (SB).Methods: This study was conducted in the Department of Medical, Oral and Biotechnological Sciences of the University “G. D'Annunzio” in Chieti. The detection of PP was performed on 500 patients with cone beam CT (CBCT) images (6 to 87 years).Results: Analysis revealed the presence of uni- and bi-lateral PP in 110 patients (22%): 24 (4.8%) patients with bilateral complete PP, 12 (2.4%) patients with complete PP on the left, 6 (1.2%) patients with complete PP on the right, 8 (1.6%) patients with complete PP on the right and partial PP on the left, 6 (1.2%) patients with complete PP on the left and partial PP on the right, 26 (5.2%) patients with partial bilateral PP, 18 (3.6%) patients with partial left PP, and 10 (2%) patients with partial PP on the right. The Chi-squared statistic confirmed that there are significant associations between MCI and PP (p = 0.020) and between SB and MCI (p <0.00001). No correlation between chronological age and presence of the PP (p = 0.982), between chronological age and morphotypes of the PP (p = 0.779), between APAD and the PP (p = 0.0757), between SB and the PP (p = 0.111), and between APAD and MCI (p = 0.222) were found.Conclusion: This observational study showed how bilateral partial variant and bilateral complete variant are the most represented morphotypes in all the age groups. The prevalence of MCI is positively associated with PP and with SB.

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Evaluation of prevalence and characteristics of ponticulus posticus among Japanese adults: A comparative study between CBCT imaging and lateral cephalogram

Cited by 4 publications

References 21 publications

Prevalence and characteristics of ponticulus posticus and its association with cervicogenic headache and migraine

Prevalence and characteristics of ponticulus posticus and its association with cervicogenic headache and migraine

A New Classification of the Morphology of Complete Ponticulus Posticus on Cone Beam Computed Tomography

Assessments of Prevalence of Ponticulus Posticus, Atlas Posterior Arch Deficiency, Sella Turcica Bridging, Maxillary Canine Impaction, and Associations Among Them in 500 CBCTs of Italian Orthodontic Patients

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