Isaac, "The lateral atlanto-axial joint as a source of headache in congenital atlanto-occipital fusion
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Total Number Variation Skulls of Cases % Atlanto-Occipital Fusion 105 3 2.86 Duplication of Condyles 105 2 1.90 Median (third) Occipital Condyle 105 1 0.95 A.
So, it can be said that this skull is showing atlanto-occipital fusion predominantly on right side.
If the normal segmentation fails to occur, atlanto-occipital fusion will result.
Atlanto-occipital fusion and its neurological complications: a case report.
Atlanto-occipital fusion in two polled Hereford calves.
Type 2 is where only one or two cervical vertebrae are fused, often associated with hemi-vertebrae and atlanto-occipital fusion
. Type 3 is where thoracic or lumbar spine abnormalities are associated with Type 1 or 2 Klippel-Feil syndrome.
Athletes with particular conditions are deserving of special mention and include those diagnosed with Down syndrome, rheumatoid arthritis, odontoid anomalies, atlanto-occipital fusion, or Klippel-Feil syndrome.
Atlanto-occipital fusion represents partial or complete fusion of the bony ring of the atlas to the occiput and is, as well, a contraindication to contact sports.
It is also known as assimilation of atlas, occipitocervical syntosis or atlanto-occipital fusion. It is one of the most common osseous anomalies of the craniovertebral junction.
Findings in the skulls with atlanto-occipital fusion were as follows,
It is also known as occipito-cervical synostosis, occipitalisation of atlas and atlanto-occipital fusion