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. 2014 Jan;5(1):3-8.
doi: 10.4103/0974-8237.135206.

Goel's classification of atlantoaxial "facetal" dislocation

Atul Goel  1
Affiliations

Goel's classification of atlantoaxial "facetal" dislocation

Atul Goel. J Craniovertebr Junction Spine. 2014 Jan.
No abstract available

PubMed Disclaimer

Conflict of interest statement

Conflict of Interest: None declared.

Figures

Figure 1a
Figure 1a
Computed tomography scan showing basilar invagination, assimilation of atlas, os-terminale and severe cord compression
Figure 1b
Figure 1b
Sagittal cut of computed tomography scan passing through the facets, showing Type 1 atlantoaxial facetal dislocation
Figure 2a
Figure 2a
T2-weighted magnetic resonance imaging with the head in extension position showing basilar invagination, atlantoaxial dislocation, and Chiari malformation
Figure 2b
Figure 2b
Computed tomography scan with the head inflexed position shows assimilation of atlas and an increase in the atlantodental interval suggesting instability
Figure 2c
Figure 2c
Computed tomography scan with the head inflexion showing the atlantoaxial facets in alignment
Figure 2d
Figure 2d
Computed tomography scan with the head in extension position showing a reduction of the atlantoaxial dislocation
Figure 2e
Figure 2e
Computed tomography scan with the head in extensions shows Type 2 atlantoaxial facetal dislocation
Figure 3a
Figure 3a
T2-weighted magnetic resonance imaging showing basilar invagination, Chiari malformation and syringomyelia
Figure 3b
Figure 3b
Sagittal cut of computed tomography scan showing assimilation of atlas and basilar invagination
Figure 3c
Figure 3c
Sagittal cut of computed tomography scan through the facets showing no mal-alignment of the facets. This type of instability is Type 3 atlantoaxial facetal instability
Figure 3d
Figure 3d
Postoperative computed tomography scan showing a reduction of basilar invagination
Figure 3e
Figure 3e
Sagittal image of postoperative computed tomography scan with the cut through the facets showing the atlantoaxial implants and an intra-articular spacer
Figure 4a
Figure 4a
Coronal image of computed tomography scan showing lateral displacement of facet of atlas in relationship with the occipital condyles and facets of axis
Figure 4b
Figure 4b
Axial image of computed tomography scan showing fracture of anterior and posterior arches of atlas
Figure 5a
Figure 5a
Computed tomography scan with the head in flexed position showing marked basilar invagination
Figure 5b
Figure 5b
Computed tomography scan with the head in extension showing a reduction of the invagination
Figure 5c
Figure 5c
Computed tomography scan cut through the facets showing suggestions of incompetence
Figure 5d
Figure 5d
Postoperative computed tomography scan showing fixation in reduced position
Figure 6a
Figure 6a
Three-dimensional computed tomography scan showing facetal mal-alignment related to rotatory atlantoaxial dislocation. The facet of the atlas is anterior to the facet of axis on one side and posterior to it on the other side
Figure 6b
Figure 6b
File photograph of the child showing torticollis
See this image and copyright information in PMC

References

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    1. Goel A, Desai KI, Muzumdar DP. Atlantoaxial fixation using plate and screw method: A report of 160 treated patients. Neurosurgery. 2002;51:1351–6. - PubMed
    1. Goel A, Laheri V. Plate and screw fixation for atlanto-axial subluxation. Acta Neurochir (Wien) 1994;129:47–53. - PubMed
    1. Jeanneret B, Magerl F. Primary posterior fusion C1/2 in odontoid fractures: Indications, technique, and results of transarticular screw fixation. J Spinal Disord. 1992;5:464–75. - PubMed