Results 71 to 80 of about 489,511 (195)

Morphometric Evaluation of the Craniovertebral Junction Using Computed Tomography: A Sex‐Based Analysis of 500 Adults

BioMed Research International, Volume 2026, Issue 1, 2026.
Background and Objective The anatomy of the craniovertebral junction (CVJ) varies considerably across populations, yet comprehensive Turkish‐specific morphometric data remain limited. We aim to establish normative CVJ measurements in Turkish males and females using computed tomography (CT). Study Design Retrospective morphological study.
Nuri Fidan, Aymelek Cetin, Alptekin Tosun, Baisakhi Banerjee   +3 more
wiley   +1 more source

Combined C1-C2 transarticular with C1 lateral mass screw fixation for the treatment of atlantoaxial instability: A single center experience

Journal of Spinal Surgery, 2016
Aim: To study the outcome of a cohort of patients with atlantoaxial instability (AAI) treated with a combination of C1-C2 transarticular screws and C1 lateral mass fixation. Background: Several surgical techniques have been described for stabilization of
Murtuza Sikander, Sean Martin, Bassam Dabbous, Stewart Griffiths, Sumit Karia, Erlick Pereira, Thomas Cadoux-Hudson   +6 more
doaj   +1 more source

Plough Fracture (Anterior Arch Fracture Type Traumatic Posterior Atlantoaxial Dislocation, TPAD‐AOT Type III): A Retrospective Study of Nine Clinical Cases With Complete Imaging Data

BioMed Research International, Volume 2026, Issue 1, 2026.
Fracture of the anterior arch of the atlas, accompanied by posterior atlantoaxial dislocation, typically presents on CT imaging as the odontoid process penetrating through and causing a high‐energy shear fracture of the anterior arch. This injury may occur with or without retained fracture fragments.
Tingfei Yan, Xianyong Wu, Yun Wang, Haisong Yang, Ajoy Prasad Shetty   +4 more
wiley   +1 more source

Ultrasonographic identification of the dorsal atlantoaxial ligament in dogs [PDF]

, 2017
Objective: To determine the ability to identify the dorsal atlantoaxial ligament during ultrasonographic examination of dogs. Study design: Canine cadaveric study. Sample population: Canine cervical spines (n = 35).
de Vicente, Felipe, Hammond, Gawain, Felipe de Vicente, Gawain Hammond   +3 more
core   +1 more source

Paroxysmal Tonic Upgaze in Pediatric Patients With Down Syndrome: A Case Report

Case Reports in Pediatrics, Volume 2026, Issue 1, 2026.
Paroxysmal Tonic Upgaze (PTU) is a paroxysmal movement disorder characterized by episodes of sustained upward deviation of the eyes, which can be misidentified as a seizure. There has been no definite association made between PTU and Down syndrome although Down syndrome has been associated with various other ocular and neurologic conditions.
Sierra Sanchez, Elise O’Neil, Stacy McConkey, Baisakhi Banerjee   +3 more
wiley   +1 more source

Congenital defects of C1 arches and odontoid process in a child with Down′s syndrome: A case presentation

Journal of Craniovertebral Junction and Spine, 2016
We present the case of a 2-year-old child with Down′s syndrome who presented to our unit with torticollis. Imaging studies revealed the rare occurrence of anterior and posterior C1 arch defects, absent odontoid process, and atlantoaxial subluxation.
Catherine Hatzantonis, Samiul Muquit, Luigi Aurelio Nasto, Hossein Mehdian   +3 more
doaj   +1 more source

Management Challenges in Refractory Grisel’s Syndrome Following Kawasaki Disease: The Importance of Timely Orthopedic Intervention and Interdisciplinary Collaboration

Case Reports in Pediatrics, Volume 2026, Issue 1, 2026.
Background Grisel’s syndrome is a rare nontraumatic atlantoaxial rotatory fixation often associated with head and neck infections or inflammatory diseases. Its occurrence following Kawasaki disease (KD) is uncommon and rarely necessitates halo‐vest immobilization.
Hiroyuki Nagao, Yo Okizuka, Nikhat Kaura
wiley   +1 more source

Sport Preparticipation Screening for Asymptomatic Atlantoaxial Instability in Patients With Down Syndrome

, 2018
Down syndrome (DS) is a clinical syndrome comprising typical facial features and various physical and intellectual disabilities due to extra genetic material on chromosome 21, with one in every 1000 babies born in the United Kingdom affected.
Fenton, Eoin, Heron, Neil, Heron, Neil; id_orcid, Tomlinson, Christopher, Hurley, Alison, Campbell, Alastair   +5 more
core   +1 more source

Atlantoaxial fixation–anterior or posterior approach: Critical review

Journal of Spinal Surgery, 2016
Atlantoaxial facet joints have been proposed as the center of mobility and also center for instability of the atlantoaxial region. Because of the high mobility of the atlantoaxial (C1-C2) motion segment, fusion rates at this level have been substantially
Vinu V Gopal
doaj   +1 more source

A Clinical and Kinematical Evaluation of Trajectory Planning Software for Posterior Atlantoaxial Transarticular Screw Fixation Surgery

, 2017
Atlantoaxial instability is a progressive cervical spine condition that often requires surgical intervention. The posterior C1-2 transarticular fixation has been a great advancement for the management of atlantoaxial instability as it provides improved ...
Chien, Andy;Wang, Yao-Hung;Lai, Dar-Ming;Chen, Ying-Sian;Chou, Wen-Kai;Yang, Been-Der;Wang, Jaw-Lin, 賴達明;王兆麟;王堯弘   +1 more
core   +1 more source