Results 21 to 30 of about 629 (146)

C1 pedicle screw placement risks in patients with ponticulus posticus: a CTA retrospective simulation study [PDF]

Journal of Orthopaedic Surgery and Research
Background Ponticulus posticus (POPO) may distort C1 surface landmarks for C1 pedicle screw (CPS) placement, raising concern for vertebral artery compromise (VAC). We aimed to establish a CTA-based workflow to identify POPO anatomies potentially suitable
Ping Wang, Han Meng, Lifeng Yu, Ruipeng Zhang, Xinyu Song, Tiantian She, Dan Wang, Yuehua Li   +7 more
doaj   +2 more sources

Ponticulus Posticus, a Rare Cause of Bowhunter’s Syndrome a Rotational Vertebral Artery Syndrome

Journal of Spinal Surgery, 2023
Bowhunters are a rare cause of posterior circulation stroke. We present the case of a young male presenting with giddiness and vomiting episodes on the rotation of the head.
Yogesh Madhukar Sawakare, Vinayak Dhage, Vernon Velho   +2 more
doaj   +2 more sources

The relationship between vertical malocclusions and ossification changes in the cranial base and upper cervical spine [PDF]

Scientific Reports
The growth and development of the maxillofacial complex share a common embryological origin with the cranial base and upper cervical spine; therefore, anomalies in these regions may be linked to variations in the skeletal pattern.
Roberta Lekavičiūtė, Diana Šopagienė, Giedrė Trakinienė, Kristina Lopatienė   +3 more
doaj   +2 more sources

The C2 Pedicle Width, Pars Length, and Laminar Thickness in Concurrent Ipsilateral Ponticulus Posticus and High-Riding Vertebral Artery: A Radiological Computed Tomography Scan-Based Study [PDF]

Asian Spine Journal, 2019
Study Design Retrospective radiological study. Purpose We aimed to determine the prevalence of ponticulus posticus (PP) and high-riding vertebral artery (HRVA) occurring simultaneously on the same side (PP+HRVA) and in cases of PP+HRVA, to assess C2 ...
Manish Kundanmal Kothari, Samir Surendranath Dalvie, Santosh Gupta, Agnivesh Tikoo, Deepak Kumar Singh   +4 more
doaj   +2 more sources

Real-time segmentation and detection of ponticulus posticus in lateral cephalometric radiographs using YOLOv8: a step towards enhanced clinical evaluation [PDF]

BMC Oral Health
Objectives Ponticulus posticus (PP) is a bony structure in the cervical spine, often difficult to identify in radiographic images, and its detection is important for both orthodontic diagnosis and clinical decision-making related to craniovertebral ...
Mehmet Akyuz, Seyda Besnili, Guldane Magat, Murat Ceylan   +3 more
doaj   +2 more sources

Associations across 22 dental and craniovertebral anomalies or variations, sagittal skeletal relationships, and vertical growth patterns: a comprehensive epidemiological study of 43 dentoskeletal traits [PDF]

BMC Oral Health, 2023
Introduction Despite researchers' recent interest in identifying links between some dental and craniovertebral abnormalities, there are many important, unassessed gaps in our knowledge of this matter. In addition, previous samples were small.
Farhad Sobouti, Sepideh Dadgar, Parsa Goleyjani, Vahid Rakhshan   +3 more
doaj   +2 more sources

PONTICULUS POSTICUS OF THE ATLAS VERTEBRA

National Journal of Medical Research, 2011
Atlas is the first cervical vertebra. It articulates with the occipital bone above and the axis vertebra below. It plays an important role in movement of the skull and the neck. A rare variation of the atlas vertebra is found where the posterior arch of
Malukar Ojaswini , Vipul.P. Prajapati, S.K.Nagar   +2 more
doaj   +1 more source

Does ponticulus posticus affect vertebral artery diameter

Surgical and Radiologic Anatomy
Ponticulus Posticus, atlantooccipital ligament ossification-induced anomaly, surrounds the vertebral artery and the first cervical nerve root. It is believed to wrap around the first cervical nerve root and the vertebral artery, causing compression. We hypothesized that it would also reduce the diameter of the vertebral artery.Between January 1, 2022 ...
Enes Gul, Irfan Atik
openaire   +4 more sources

Correlation of Ponticulus Posticus with Dentofacial Skeletal Patterns. [PDF]

Contemp Clin Dent, 2022
Background: This study aimed to assess the correlation of ponticulus posticus (PP) with dentofacial skeletal patterns on lateral cephalograms of an Iranian population. Methods: This retrospective study evaluated 1000 lateral cephalograms of 690 females and 310 males.
Falah-Kooshki S, Nikkerdar N, Imani MM, Faraji R, Golshah A.   +4 more
europepmc   +3 more sources

Craniofacial and Dental Anomalies of a Patient Carrying Two MicroRNA Variants: A Proof‐Of‐Concept Case Report [PDF]

Clinical Case Reports
Craniofacial and dentofacial anomalies often result from disruptions in embryogenetic processes driven by genetic alterations. Dental development involves complex interactions between coding and non‐coding genes, orchestrated by a network of signaling ...
Camilla Grenga, Rosanna Guarnieri, Martina Mezio, Adriana Assunta De Stefano, Gabriella Galluccio, Roberto Di Giorgio, Agnese Giovannetti, Antonio Pizzuti, Viviana Caputo, Ersilia Barbato   +9 more
doaj   +2 more sources