Atlanto-occipital fusion: A case report

Monalisa, Monalisa; Pandit, Subhendu; Bhatnagar, Rajan

doi:10.4103/0975-2870.164963

Cited by 1 publication

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“…This is significantly higher compared with the information reported in the literature, which references values in range from 0.14 to 0.75%. [9][10][11] In the skull with hemisinostosis, the reduced diameters of the small ends of the ducts formed by the passage of the vertebral artery in its exocraneal course lead to a suspected blood flow decrease due to stenosis of both arteries. This is due to the contrasting values of the diameter of the vertebral artery reported in the literature from 3.5 to 4 mm.…”

Section: Discussionmentioning

confidence: 99%

Atlanto-Occipital Synostosis in a Colombian Population Sample

2018

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Introduction The Cervico-capital rotation process involves important joints with respect to the neurological field. Among these joints, the atlanto-occipital joint accounts for 40% of the total rotation process and its anatomical changes may affect the joint, i.e when the synostosis of both bones occurs. This anomaly has a reported incidence in the world population of 0.14% to 0.75%. To determine whether this incidence range also corresponds to the Colombian population, atlanto-occipital fusion in Colombian patients was studied. Materials and Methods The presence of atlanto-occipital fusion was assessed in a random sample of 105 skulls of a Colombian population. Morphometric features were evaluated by using a Vernier caliper. Results Out of the total sample two cases of atlanto-occipital fusion were identified. One of them exhibited a bilateral fusion between the anterior arch of the foramen magnum and the lateral masses of the atlas; the other one exhibited a left hemisynostosis that compromises the anterior arch foramen magnum and left lateral mass of atlas. The overall frequency of occurrence was 1.9%. Conclusion A greater incidence of atlanto-occipital fusion was found in contrast to the range of world incidence reported in the literature.

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Section: Discussionmentioning

confidence: 99%