Prevalence of Ponticulus Posticus on Lateral Cephalometric Radiographs, its Association with Cervicogenic Headache and a Review of Literature

Tambawala, Shahnaz S.; Karjodkar, Freny; Sansare, Kaustubh; Motghare, Digvijay; Mishra, Isha; Gaikwad, Shuddhodhan; Dora, Amaresh Chandra

doi:10.1016/j.wneu.2017.04.030

Cited by 32 publications

(26 citation statements)

References 63 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…2017; Tambawala et al . 2017; Pękala et al . 2018; Sanchis‐Gimeno et al 2018a; 2018b), little has been published about the presence of anatomical variants of the atlas in a Neanderthal population.…”

Section: Introductionmentioning

confidence: 99%

Krapina atlases suggest a high prevalence of anatomical variations in the first cervical vertebra of Neanderthals

et al. 2020

View full text Add to dashboard Cite

The first cervical vertebra, atlas, and its anatomical variants have been widely studied in Homo sapiens. However, in Neanderthals, the presence of anatomical variants of the atlas has been very little studied until very recently. Only the Neanderthal group from the El Sidrón site (Spain) has been analysed with regard to the anatomical variants of the atlas. A high prevalence of anatomical variants has been described in this sample, which points to low genetic diversity in this Neanderthal group. Even so, the high prevalence of anatomical variations detected in El Sidrón Neanderthal atlases needs to be confirmed by analysing more Neanderthal remains. In this context, we analysed the possible presence of anatomical variants in the three Neanderthal atlases recovered from the Krapina site (Croatia) within the Neanderthal lineage. Two of the three Krapina atlases presented anatomical variations. One atlas (Krapina 98) had an unclosed transverse foramen and the other (Krapina 99) presented a non‐fused anterior atlas arch. Moreover, an extended review of the bibliography also showed these anatomical variations in other Middle and Upper Pleistocene hominins, leading us to hypothesise that anatomical variations of the atlas had a higher prevalence in extinct hominins than in modern humans.

show abstract

Section: Introductionmentioning

confidence: 99%

Krapina atlases suggest a high prevalence of anatomical variations in the first cervical vertebra of Neanderthals

et al. 2020

View full text Add to dashboard Cite

show abstract

“…[1][2][3][4][5][6][7] However, many developmental anomalies or normal variants may be associated with a significant problem in other systemic diseases. [5][6][7][8][9][10] Some of these radiologic findings can be detected early during examinations performed at specific time points and may appear before other signs and symptoms in some syndromes. 4,7,[11][12][13] Recently, a higher incidence of ponticulus posticus (PP) in the atlas, sella turcica bridge (STB) calcification, and specific craniofacial morphology has been associated with dental agenesis.…”

Section: Introductionmentioning

confidence: 99%

Cervicovertebral anomalies and/or normal variants in patients with congenitally bilateral absent maxillary lateral incisors:

Öztürk¹,

Atilla²,

Yağcı³

2020

The Angle Orthodontist

View full text Add to dashboard Cite

Objective To determine whether there is a relationship between congenitally bilaterally absent maxillary lateral incisors (BAMLIs) and skeletal anomalies and/or normal variants. Materials and Methods The records of 86 patients (62 girls, 24 boys; age 12–17 years) with congenitally BAMLIs and 86 patients (55 girls, 34 boys; age 13–18 years) without any dental or skeletal anomalies were collected and evaluated retrospectively. The study was based on the evaluation of lateral cephalometric and orthopantomographic radiographs. Posterior arch deficiency of the atlas bone (PADA); atlanto-occipital ligament calcification, known as “ponticulus posticus” (PP); and interclinoid ligament calcification, known as “sella turcica bridging” were recorded for each participant. Pearson χ2 and Fisher exact tests were used to evaluate and compare skeletal anomalies and/or normal variants between patients with BAMLIs and the control group. Results The prevalence of cervicovertebral anomalies and/or normal variants seen in the lateral cephalometric radiographs was higher in patients with BAMLI than in the control group. The prevalence of PP was lower and that of PADA was higher in patients with BAMLIs than in the control group (P < .05). Conclusion The prevalence of PADA was increased and that of PP formation was decreased in patients with BAMLIs. There was a significant relationship between skeletal anomalies and/or normal variants.

show abstract

“…It has been reported that the only advantage of this variation is the low risk of fracture, and it has also been reported that it usually leads to dissection by stretching the VA, vertebrobasilar ischemia during strong interventions in the cervical spine, complications in cases where C1-C2 stabilization is required, and Barre Lieou syndrome mostly by causing neurovascular compression (1,5,7,14,15,18,19,(22)(23)(24)(25)(26)(27).…”

Section: Discussionmentioning

confidence: 99%

The Importance of Arcuate Foramen, A Variation of the Atlas: A Microsurgical Cadaveric Study and Review of the Literature

Keser¹,

Çıkla²,

Özaydın³

et al. 2019

Istanbul Med J

View full text Add to dashboard Cite

Amaç: Arkuat foramen (AF) atlasın posterior arkındaki vertebral arter (VA) oluğunda (sulkus arteriae vertebralis) bulunan, prevalansı bölgesel ve etnik faktörler nedeni ile değişebilen osseöz bir varyasyondur. AF'nin içindeki yapılara bası oluşturarak vertebrobaziler yetmezlik bulgularına neden olduğu düşünülse de bu kliniği açıklayacak yeterli sayıda kadavra çalışması yoktur. Yöntemler: AF varyasyonun insidansını ve içinden geçen VA ile olan ilişkisini değerlendirmek için renkli silikon enjekte edilmiş ve rastgele olarak seçilmiş 10 kadavranın 20 tarafı Wisconsin Üniversitesi Nöroanatomi Laboratuvarı'nda mikroşirürjikal yöntem ile incelendi. Bulgular: Örneklerin %30'unda atlasta komplet tipte AF varyasyonu saptandı. Bu varyasyon iki olguda sağda tek taraflı iken bir olguda bilateraldi. AF'nin ortalama boyutları sağda D1=6 mm, D2=5,5 mm, solda D1=7,5 mm, D2=6,5 mm, VA'nın ortalama çapı ise foramen öncesi, foramen içi ve foramen sonrası sırası ile sağda 4 mm, 2,5 mm ve 3 mm, solda 6 mm, 4 mm ve 5 mm idi. Olguların hepsinde suboksipital sinir AF içerisinde VA'ya eşlik ediyordu. Sonuç: Bu varyasyonun yüksek insidansının olabileceğinin bilinmesi kraniyoservikal bileşke ameliyatlarından önce ameliyat stratejisinin belirlenmesini ve hayati tehlike yaratabilecek arter yaralanmalarının engellenmesini sağlayabilir. Ayrıca, AF boyutlarının VA'nın rahatlıkla geçişine uygun olmasına karşın foramen içinden geçen diğer yapılar nedeni ile arteryel bası oluşturduğunun görülmesi foramen dekompresyonu ile olguların çoğunun rahatlama nedenini de açıklayabilir. Anahtar Kelimeler: Arkuat foramen, atlas, kadavra çalışması, osseöz anomali, vertebral arter, vertebrobaziler yetmezlik Introduction: Arcuate foramen (AF) is an osseous variation located on the vertebral artery (VA) groove (sulcus arteriae vertebralis) at the posterior arch of the atlas. Its prevalence may vary due to regional and ethnic factors. Although it is thought that it causes compression of the structures inside AF and causes vertebrobasilar insufficiency, there are not enough cadaver studies to explain this clinical condition. Methods: To evaluate the incidence of AF variation and its relationship with VA, 20 sides of 10 randomly selected and silicone injected cadaveric heads were examined by microsurgical method at the University of Wisconsin Neuroanatomy Laboratory. Results: Complete AF variation in atlas was detected in 30% of the samples. This variation was unilateral on the right side in two cases and bilateral in one case. The mean dimensions of AF were D1=6 mm and D2=5.5 mm on the right, and D1=7.5 mm and D2=6.5 mm on the left. The mean pre-foraminal, foraminal and post-foraminal diameters of VA were 4 mm, 2.5 mm and 3 mm, respectively, on the right, and 6 mm, 4 mm and 5 mm, respectively, on the left. In all cases, the suboccipital nerve was accompanying VA in the AF. Conclusion: Being aware that this variation may have a high incidence may help to determine surgical strategy before craniocervical junction surgery and prevent life-threatening arterial injuries...

show abstract

Prevalence of Ponticulus Posticus on Lateral Cephalometric Radiographs, its Association with Cervicogenic Headache and a Review of Literature

Cited by 32 publications

References 63 publications

Krapina atlases suggest a high prevalence of anatomical variations in the first cervical vertebra of Neanderthals

Krapina atlases suggest a high prevalence of anatomical variations in the first cervical vertebra of Neanderthals

Cervicovertebral anomalies and/or normal variants in patients with congenitally bilateral absent maxillary lateral incisors:

The Importance of Arcuate Foramen, A Variation of the Atlas: A Microsurgical Cadaveric Study and Review of the Literature

Contact Info

Product

Resources

About