Atlanto-Axial Joint

2020 ◽  
Author(s):  
Keyword(s):  
Atlanto Axial Joint

scholarly journals A Case of Grisel Syndrome Showing No Underlying Laxity of the Atlanto-axial Joint

2017 ◽  
Vol 41 (3) ◽  
pp. 511 ◽  
Author(s):  
Ah-Reum Ahn ◽  
Yul-Hyun Park ◽  
Eun Ji Park ◽  
Shin-Young Yim
Keyword(s):  
Grisel Syndrome ◽  
Atlanto Axial Joint

scholarly journals C1-C2 Subluxation after Mild Cervical Spine Trauma in a Child

2020 ◽  
pp. 1-3
Author(s):  
Isabel Snee ◽  
Isabel Snee ◽  
Catherine A. Mazzola
Keyword(s):  
Cervical Spine ◽  
Head Tilt ◽  
Spine Injury ◽  
Halo Traction ◽  
Cord Injury ◽  
Magnetic Resonance Imaging Mri ◽  
Cervical Spine Alignment ◽  
Atlanto Axial Joint ◽  
Spine Radiographs ◽  
Halo Device

We report a case of a seven-year-old girl who presented with a “Cock-Robin” head tilt and cervical spine injury after falling from her bed. Initial cervical spine X-ray reported a fractured clavicle. However, almost four weeks later, the torticollis had not resolved. Computerized tomography (CT) of the cervical spine revealed subluxation of the atlanto-axial joint at C1-C2. Cervical spine magnetic resonance imaging (MRI) did not show any spinal cord injury. Manual reduction and hard collar placement were attempted, yet C1- C2 subluxation recurred. The child was placed into halo traction and then into a halo vest. CT scan showed near complete resolution of C1-C2 subluxation. Three months later the halo device was removed, and the patient was placed in a hard cervical collar then transitioned into a soft collar over a four month period. During this time, the patient received physical therapy. Final cervical spine radiographs revealed proper cervical spine alignment and resolution of C1-C2 subluxation.

scholarly journals Fusion in Patients with Occipito-Atlanto-Axial Joint Instability

2012 ◽  
Vol 26 (2) ◽  
pp. 211-220
Author(s):  
Misao Nishikawa ◽  
Thomas H. Milhorat ◽  
Paolo A. Bolognese ◽  
Roger W. Kula ◽  
Seiya Masamura ◽  
...  
Keyword(s):  
Joint Instability ◽  
Atlanto Axial Joint

Computerized tomographic demonstration of rotational atlanto-axial fixation

1979 ◽  
Vol 50 (1) ◽  
pp. 115-119 ◽  
Author(s):  
Italo Rinaldi ◽  
William J. Mullins ◽  
William F. Delaney ◽  
Peter M. Fitzer ◽  
David N. Tornberg
Keyword(s):  
Computerized Tomography ◽  
Clinical Impression ◽  
Diagnostic Modality ◽  
Content Type ◽  
Difficult Diagnosis ◽  
Atlanto Axial Joint ◽  
Fine Print

✓ The authors report a case of rotational fixation of the atlanto-axial joint in which the diagnosis was not reached by conventional radiographic techniques. The clinical impression of rotational fixation was ultimately confirmed by computerized tomography. This new diagnostic modality can be very helpful in arriving at a very difficult diagnosis.

scholarly journals Anatomic Considerations for Injection of the Lateral Atlanto-Axial Joint

Pain Medicine ◽  
2019 ◽  
Vol 20 (11) ◽  
pp. 2115-2119
Author(s):  
Charis McNabney ◽  
Anesh Chavda ◽  
Hatim Alabsi ◽  
Stephanie L Sellers ◽  
Darra T Murphy ◽  
...  
Keyword(s):  
Vertebral Artery ◽  
Vertebral Arteries ◽  
Contrast Enhanced ◽  
Safety Margins ◽  
Close Proximity ◽  
Preprocedural Imaging ◽  
Computed Tomography Angiogram ◽  
Enhanced Computed Tomography ◽  
Atlanto Axial Joint ◽  
Contrast Enhanced Computed Tomography

Abstract Objective We aimed to define the potential complications of intra-articular steroid injections into the lateral C1-2 articulations and safety margins to the relevant structures. Methods A total of 488 contrast-enhanced computed tomography angiogram (CTA) “arch to vertex” studies were retrospectively reviewed for theoretical intersection of the vertebral artery or thecal sac and distance of the named structures from the anticipated/theoretical trajectory of injection into the lateral C1-C2 joint. Results Patients were 60.4±15.8 years old and 55.5% male. In total, seven vertebral arteries and 11 thecal sac theoretical intersections were found. In cases without a direct intersection, the distance from the trajectory (range) was 0.71±0.18 (0.22–1.44) cm to the vertebral artery and 0.6±0.22 (0.14–1.8) cm to the thecal sac. Conclusions Although injection of steroid into the lateral C1-C2 articulation for pain management has historically been reported to carry risk of severe complications due to close proximity and location variability of surrounding structures, our study quantifies the potential risk of such injections. Further, our analysis suggests that preprocedural imaging should be considered.

scholarly journals Atlanto-axial joint of atlanto-axial subluxation patients due to rheumatoid arthritis before and after surgery, morphological evaluation using CT reconstruction

2010 ◽  
Vol 20 (5) ◽  
pp. 798-803 ◽  
Author(s):  
Yasunori Sorimachi ◽  
Haku Iizuka ◽  
Tsuyoshi Ara ◽  
Masahiro Nishinome ◽  
Yoichi Iizuka ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Ct Reconstruction ◽  
Morphological Evaluation ◽  
Before And After ◽  
Atlanto Axial Joint

Atlanto-Axial Infection after Acupuncture

2016 ◽  
Vol 34 (2) ◽  
pp. 149-151 ◽  
Author(s):  
A Robinson ◽  
C R P Lind ◽  
R J Smith ◽  
V Kodali
Keyword(s):  
Staphylococcus Aureus ◽  
Cervical Spondylosis ◽  
Infectious Complications ◽  
Blood Cultures ◽  
Location Awareness ◽  
Direct Extension ◽  
History Of ◽  
Haematogenous Spread ◽  
Spread Of Infection ◽  
Atlanto Axial Joint

A 67-year-old man presented with neck cellulitis following acupuncture for cervical spondylosis. Blood cultures were positive for methicillin-sensitive Staphylococcus aureus. Increased neck pain and bacteraemia prompted MRI, which showed atlanto-axial septic arthritis without signs of infection of the tissues between the superficial cellulitic area and the atlanto-axial joint, thus making direct extension of infection unlikely. It is more likely that haematogenous spread of infection resulted in seeding in the atlanto-axial joint, with the proximity of the arthritis and acupuncture site being coincidental. Acupuncture is a treatment option for some indolent pain conditions. As such, acupuncture services are likely to be more frequently utilised. A history of acupuncture is rarely requested by the admitting doctor and seldom offered voluntarily by the patient, especially where the site of infection due to haematogenous spread is distant from the needling location. Awareness of infectious complications following acupuncture can reduce morbidity through early intervention.

Biomechanical properties of the atlantoaxial joint with naturally-occurring instability in a toy breed dog

2015 ◽  
Vol 28 (05) ◽  
pp. 355-358 ◽  
Author(s):  
C. Precht ◽  
B. Riedinger ◽  
A. Bürki ◽  
F. Forterre
Keyword(s):  
Biomechanical Properties ◽  
Cord Compression ◽  
Protective Role ◽  
Atlantoaxial Instability ◽  
Tectorial Membrane ◽  
Atlantoaxial Joint ◽  
Lateral Bending ◽  
Atlanto Axial Joint ◽  
Gross Examination ◽  
Yorkshire Terrier

SummaryThe biomechanical properties of the atlanto-axial joint in a young Yorkshire Terrier dog with spontaneous atlantoaxial instability were compared to those of another young toy breed dog with a healthy atlantoaxial joint. The range-of-motion was increased in flexion and lateral bending in the unstable joint. In addition, lateral bending led to torsion and dorsal dislocation of the axis within the atlas. On gross examination, the dens ligaments were absent and a longitudinal tear of the tectorial membrane was observed. These findings suggest that both ventral and lateral flexion may lead to severe spinal cord compression, and that the tectorial membrane may play a protective role in some cases of atlantoaxial instability.

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