Results 41 to 50 of about 489,511 (195)

Ossification of the Posterior Atlantoaxial Membrane Associated with an Os Odontoideum: A Case Report

Journal of Orthopaedic Surgery, 2011
We report a case of ossification of the posterior atlantoaxial membrane associated with an os odontoideum in a 46-year-old woman. She developed myelopathy following a minor motor vehicle accident.
Junichi Ohya, Hirotaka Chikuda, Shurei Sugita, Takashi Ono, Yasushi Oshima, Katsushi Takeshita, Hiroshi Kawaguchi, Kozo Nakamura   +7 more
doaj   +1 more source

Treatment of atlantoaxial instability in pediatric patients [PDF]

Neurosurgical Focus, 2003
The atlantoaxial region has been extensively described as a spinal segment especially prone to injury in children. In this clinical review, the authors evaluate and summarize the management of 23 pediatric cases of atlantoaxial instability treated between March 1990 and October 2002.
Scott Y, Rahimi, E Andrew, Stevens, David John, Yeh, Ann Marie, Flannery, Haroon Fiaz, Choudhri, Mark R, Lee   +5 more
openaire   +2 more sources

Traumatic spinal cord injury caused by suspected hyperflexion of the atlantoaxial joint in a 10-year-old cat

Journal of Feline Medicine and Surgery Open Reports, 2015
Case summary A 10-year-old cat presented 5 days after a traumatic event with acute recumbency followed by some clinical improvement. The neuroanatomical localisation was the C1–C5 spinal cord segments. Initial survey radiographs, including lateral flexed
Annette Wessmann, Angela McLaughlin, Gawain Hammond   +2 more
doaj   +1 more source

Brown-Sequard syndrome caused by hyperextension in a patient with atlantoaxial subluxation due to an os odontoideum

Acta Orthopaedica et Traumatologica Turcica, 2018
Brown-Sequard syndrome is an uncommon complication of atlantoaxial arthrodesis. A 50-year-old female visited our emergency department after falling from a ladder. Radiologic evaluations revealed chronic C1-2 instability with acute spinal cord injury. The
Dong-Yeong Lee, Soon-Taek Jeong, Tae-Ho Lee, Dong-Hee Kim   +3 more
doaj   +1 more source

Clinical reasoning in feline non‐ambulatory tetraparesis or tetraplegia: Which combination of clinical information is useful?

Veterinary Record, EarlyView.
Abstract Background Non‐ambulatory tetraparesis or tetraplegia in cats may constitute a diagnostic challenge for general practitioners. Therefore, this study aimed to evaluate if clinical variables from signalment, history, clinical examination and basic ancillary tests are associated with underlying diagnoses in cats with non‐ambulatory tetraparesis ...
Guido Bertoldi, Steven De Decker
wiley   +1 more source

Morphometric and functional study of the canine atlantoaxial joint [PDF]

, 2019
The atlantoaxial joint can be affected by instability, in most cases a congenital pathology in young small breed dogs. Causes of atlantoaxial instability (AAI) are variable but are usually attributed to a lack of ligamentous support.
Stoffel, Michael H., Schmidli, Fenella, Precht, Christina, Planchamp, Bastien, Bluteau, Jasmin, Forterre, Franck   +5 more
core   +1 more source

Anterior Retropharyngeal Cage Distraction and Fixation for Basilar Invagination: “The Wedge Technique” [PDF]

Neurospine, 2019
Objective Surgery is indicated for basilar invagination (BI) in symptomatic patients. In many patients, symptoms and signs occur due to an upward-migrated and malaligned odontoid with fixed or mobile atlantoaxial instability.
Sushil Patkar
doaj   +1 more source

Extracranial dural venous sinus-A rare vascular anomaly in a case of atlantoaxial instability

Journal of Orthopaedic Reports, 2023
Background: Cases of atlantonaxial instability usually are accompanied with bony and vascular aberrations which make the management of these cases challenging. Case description: We report a rare and challenging case of an 8-year-old boy with atlantoaxial
Umang D. Sheth, Tushar N. Rathod, Punith K, Dhruv Paul, Sunil Bhosale   +4 more
doaj   +1 more source

Inter‐rater agreement of the canine modified Ashworth scale for assessment of limb tone in dogs presenting with acute myelopathic signs

Veterinary Record, EarlyView.
Abstract Background This study aimed to assess the inter‐rater reliability of a canine adaptation of the modified Ashworth scale (CaMAS) for the assessment of muscle tone in dogs. Methods Dogs presented to the neurology service of a single referral centre between November 2023 and October 2024 underwent a muscle tone evaluation by two independent ...
Albert Aguilera‐Padros, Joao M. De Frias, Megan Madden, Ana Oliveira, Callum Atkins, Ivona Orgonikova, Aran Nagendran   +6 more
wiley   +1 more source

Atlantoaxial instability in monozygotic twin sisters: degenerative or congenital disease?

, 2014
The authors report on two 70-year-old monozygotic twin sisters who both suffered severe nontraumatic atlantoaxial instability. If either had been a solitary case, degenerative atlantoaxial instability would have been the most straightforward diagnosis ...
Lauweryns, Philippe, Pans, Steven, de Jong, Lars, Verfaillie, Michiel, Goffin, Jan, Depreitere, Bart   +5 more
core   +1 more source