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Chiari malformation type I and basilar invagination originating from atlantoaxial instability: a literature review and critical analysis [PDF]
Acta Neurochirurgica, 2020 Introduction!#!Recently, a novel hypothesis has been proposed concerning the origin of craniovertebral junction (CVJ) abnormalities. Commonly found in patients with these entities, atlantoaxial instability has been suspected to cause both Chiari ...
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Stabilization of Atlantoaxial Instability
Orthopedics, 1988ABSTRACT: Eight patients with atlantoaxial instability were treated by arthrodesis oí the first and second cervical spine. Internal fixation was achieved by passing two 18 gauge stainless steel wires beneath the posterior arch of the atlas and around a threaded Steinmann pin which was drilled through the base of the spinous process of the axis.
H, Aprin, R, Harf
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Atlantoaxial Instability Revisited
Annals of Otology, Rhinology & Laryngology, 1982Atlantoaxial instability in rheumatoid arthritis patients presents a particular hazard for endoscopists. The basic pathology, while well known to orthopedists, is not common knowledge among bronchoesophagologists or anesthesiologists. This paper describes the syndrome, potential complications and possible approaches to avoiding serious neurologic ...
M L, Norton, M A, Ghanma
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2018
There are a number of different imaging modalities that can be used to confirm atlantoaxial instability. Plain film radiographs of the cervical spine can be used to assess the atlantodental interval (ADI). Cervical CT is necessary to assess the atlantoaxial bony anatomy as well as to assess the foramen transversarium at C1 and C2.
Jonathan M. Parish, Domagoj Coric
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There are a number of different imaging modalities that can be used to confirm atlantoaxial instability. Plain film radiographs of the cervical spine can be used to assess the atlantodental interval (ADI). Cervical CT is necessary to assess the atlantoaxial bony anatomy as well as to assess the foramen transversarium at C1 and C2.
Jonathan M. Parish, Domagoj Coric
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ATLANTOAXIAL INSTABILITY IN OS ODONTOIDEUM WITH MYELOPATHY
Journal of Pediatric Orthopaedics, 1996This study analyzed the correlation between the atlantoaxial instability (especially sagittal plane rotatory instability) and myelopathy. Thirty-four patients with os odontoideum were reviewed in clinical symptoms and radiographs.The results were correlated to provide a rationale for the genesis of myelopathy.Instability of the atlantoaxial joint has ...
M, Watanabe, Y, Toyama, Y, Fujimura
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Atlantoaxial Instability and Down Syndrome
Pediatrics, 1988Since Spitzer and co-workers1 described "forward displacement of the atlas on the axis" in persons with Down syndrome 25 years ago, approximately 30 reports have been published on atlantoaxial instability, subluxation, and dislocation in patients with this chromosomal disorder.
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Os Odontoideum with Posterior Atlantoaxial Instability
Spine, 1991Nine patients who had os odontoideum with posterior atlantoaxial instability are reviewed. Three parameters were measured on the lateral radiographs: the distance from the os odontoideum to the spinous process of the axis in extension (Dext), the distance from the os odontoideum to the posterior arch of the atlas (Datl), and the degree of instability ...
N, Shirasaki +5 more
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Atlantoaxial Instability in Mucopolysaccharidosis Type VII
Journal of Pediatric Orthopaedics, 1989We report a 15-year-old boy with mucopolysaccharidosis (MPS) Type VII (Sly disease) who was found to have atlantoaxial instability with quadriparesis. Subluxation of C1 on C2 has also been documented in patients with Type I and Type IV MPS. Routine screening of the cervical spine is recommended in patients with "MPS Type VII" so that delayed diagnosis ...
P D, Pizzutillo +3 more
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TRAUMATIC ATLANTOAXIAL DISTRACTIVE INSTABILITY
The Journal of Trauma: Injury, Infection, and Critical Care, 1994We present an uncommon case of traumatic atlantoaxial distractive instability which manifested itself clinically in a respirator-dependent quadriplegic. The initial radiographic finding was anterior atlantoaxial dislocation. The patient was managed initially by halo traction and, 8 weeks later, demonstrated occipitocervical fusion with gratifying ...
C I, Huang, I H, Chen, L S, Lee
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Atlantoaxial Instability in Lesch-Nyhan Syndrome
Spine, 1996A clinical case report of two brothers with Lesch-Nyhan syndrome found to have atlantoaxial instability is reported.To report the clinical and radiologic findings and the operative outcome in these patients.Both patients had biochemically proven Lesch-Nyhan syndrome. No previous cases of cervical instability have been reported in this group of patients.
P C, Shewell, A G, Thompson
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