Congenital Deformities in the Region of the Foramen Magnum: Basilar Impression

Peyton, William T.; Peterson, Harold O.

doi:10.1148/38.2.131

Cited by 23 publications

(6 citation statements)

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“…The differences in bones may result in hydrocephaly, hydromyelia, and syringomyelia as a result of the changes they cause in the dynamics of liquor cerebrospinalis. 19,20 According to previous researchers, a rudiment of the hypochondylar arch may take the form of a third condyle situated on the anterior margin of the FM. The third condyle may form a joint with the odontoid process or anterior arch of the atlas.…”

Section: Discussionmentioning

confidence: 99%

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Three-Dimensional Anatomic Landmarks of the Foramen Magnum for the Craniovertebral Junction

Gövsa¹,

Özer²,

Çelik³

et al. 2011

Journal of Craniofacial Surgery

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The foramen magnum (FM) has a vital importance to have a direct view of the vertebral artery, lower cranial nerves, and the brainstem. The morphologic analysis of the FM was studied in 352 occipital bones of adult human skulls by 3D-Doctor V 3.5.050402 Demo version. The perimeter and area of the FM were calculated as 115.6 (SD, 9.9) mm and 829 (SD, 137.7) mm(2), respectively. The FM index was found as 84.02%, and the majority (38.4%) of holes were observed to have a narrow index.The FM was observed to 8 different types. The most frequently observed types were the tetragonal type in 25.66%, and the one formed by the combination of 2 semicircles in 23.28%. The large anterior margin of the FM type, such as types 1, 4, 5, and 6, can be easily performed partially. In the cases of types 2, 3, and 8, the anterior margin was determined as narrow, the resection procedure is completed with more difficulty. In Pearson correlation analysis, it is significant that a statistically strong relation was found between the area and perimeter, and the area and length of FM. This findings suggest that the resection should be started at the anterior margin, just lateral and then extended superolaterally.

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Section: Discussionmentioning

confidence: 99%

“…The third condyle may form a joint with the odontoid process or anterior arch of the atlas. 19,20 In this study, differences concerning the length, width, and shape of the FM in the craniovertebral intersection have been taken into consideration. The results have been analyzed considering the embryologic data.…”

Section: Discussionmentioning

confidence: 99%

Three-Dimensional Anatomic Landmarks of the Foramen Magnum for the Craniovertebral Junction

Gövsa¹,

Özer²,

Çelik³

et al. 2011

Journal of Craniofacial Surgery

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“…Kleippel-Feil s drome may explain 17 of syndrome as a possible dia osis P or those crania which are missing in P racranial matethe sample sku f 1s. Peyton and Peterson (1942) and Teodori and Painter (1984).…”

Section: Kleippel-feil Syndromementioning

confidence: 98%

Wryneck in the ancient Hawaiians

Douglas

1991

American J Phys Anthropol

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A unique cranial asymmetry previously noted in the skeletal remains from Mokapu, O'ahu, Hawai'i, is described. The anomaly involves an indentation of one or both of the occipital condyles and facial and vault asymmetry. This examination of the asymmetry includes a search for other reported occurrences, a detailed description, and a differential diagnosis. A multiple working hypothesis approach is employed. Comparison of the osseous material with the expected clinical pictures in craniosynostosis, Kleippel-Feil syndrome, primary basilar impression, and torticollis results in the most likely explanation of congenital torticollis. A high rate of occurrence of the anomaly (1.8%) is found in the skeletal remains from the Hawaiian Islands, but it has been documented in only two instances outside Hawai'i. A survey of patients seen at The Shriner's Hospital for Crippled Children does not reveal a high rate of occurrence of torticollis in Hawaiians relative to other ethnic groups.

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“…Although many of these craniovertebral malformations have been well recorded in clinicoradiological studies (Peyton and Peterson, 1942;McRae, 1960;Penning, 1968;von Torklus and Gehle, 1972;Bland, 1987), the present study considers some of the occipital dysplasias found in a South African skeletal collection, which it is hoped will provide further data on the comparison between skeletons and radiographs, thus facilitating accurate radiological diagnosis.…”

Section: Introductionmentioning

confidence: 97%

Bony observations of some morphological variations and anomalies of the craniovertebral region

Taitz

2000

Clin. Anat.

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Congenital Deformities in the Region of the Foramen Magnum: Basilar Impression

Cited by 23 publications

References 0 publications

Three-Dimensional Anatomic Landmarks of the Foramen Magnum for the Craniovertebral Junction

Three-Dimensional Anatomic Landmarks of the Foramen Magnum for the Craniovertebral Junction

Wryneck in the ancient Hawaiians

Bony observations of some morphological variations and anomalies of the craniovertebral region

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