Search results for "Arcuate foramen"

showing 3 items of 3 documents

The Decreasing Prevalence of the Arcuate Foramen

2018

[Background]: The arcuate foramen (AF), or ponticulus posticus, is an anatomic variant of the first cervical vertebra that consists of a complete or partial osseous bridge over the groove for the vertebral artery and extends from the posterior aspect of the superior articular facet to the superior lateral border of the posterior arch. The AF has been associated with clinical symptoms, such as headache, migraine, neck pain, shoulder pain, arm pain, and vertebral artery dissection. We aimed to test whether the prevalence of the AF has decreased in the modern human population over the past centuries as a result of reduction in inbreeding and endogamy.

AdultMaleRural Populationmusculoskeletal diseases0301 basic medicinemedicine.medical_specialtyUrban PopulationVertebral artery dissectionVertebral arteryPopulationConsanguinityYoung Adult03 medical and health sciences0302 clinical medicinemedicine.arteryHumansMedicineProspective StudiesVertebral arteryeducationSigns and symptomsAgedAged 80 and overArcuate forameneducation.field_of_studyNeck painbusiness.industryAnatomic VariationMiddle Agedmusculoskeletal systemmedicine.diseaseConfidence intervalSpineSurgeryBridge (graph theory)ArchaeologyMigraineRisk factorsCervical atlasFemaleSurgery030101 anatomy & morphologyNeurology (clinical)medicine.symptomAnatomybusiness030217 neurology & neurosurgery
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Prevalence of anatomic variations of the atlas vertebra

2018

Abstract BACKGROUND CONTEXT The retrotransverse foramen (RTF), arcuate foramen (AF), unclosed transverse foramen (UTF) and posterior atlas arch defects (PAAD) are anatomic variations of the atlas vertebra that surgeons must be aware of before spine surgery is performed. PURPOSE To analyze the prevalence of the AF, RTF, UTF, and PAAD. STUDY DESIGN Ex-vivo anatomical study. PATIENT SAMPLE Two hundred eighteen atlas vertebrae obtained from 100 Caucasian subjects and 118 sub-Saharan African subjects (48 Sotho subjects, 35 Xhosa subjects and 35 Zulu subjects). METHODS We studied 218 atlas vertebrae from skeletons of the Raymond A. Dart Collection in order to analyze the prevalence of AF, RTF, UT…

Male0301 basic medicinemedicine.medical_specialtyBlack PeopleWhite PeopleAtlas vertebra03 medical and health sciences0302 clinical medicineSpine surgerymedicineForamenHumansOrthopedics and Sports MedicineCervical AtlasAtlas archGynecologyArcuate foramenSex Characteristicsbusiness.industryCervical AtlasAnatomic VariationOutcome measuresVertebramedicine.anatomical_structureFemaleSurgery030101 anatomy & morphologyNeurology (clinical)business030217 neurology & neurosurgeryThe Spine Journal
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Atlases with Arcuate Foramen Present Cortical Bone Thickening That May Contribute to Lower Fracture Risk.

2018

To date, no information about the cortical bone microstructural properties in atlas vertebrae with arcuate foramen has been reported. As a result, we aimed to test in an experimental model if there is a cortical bone thickening in an atlas vertebra which has an arcuate foramen that may play a protective role against bone fracture.We analyzed by means of micro-computed tomography the cortical bone thickness, the cortical volume, and the medullary volume (SkyScan 1172 Bruker micro-CT NV, Kontich, Belgium) in cadaveric dry atlas vertebrae with arcuate foramen and without arcuate foramen. We also reviewed a case series of 31 posterior atlas arch fractures to correlate the possible presence in t…

MaleMedullary cavityVertebral artery030209 endocrinology & metabolism03 medical and health sciences0302 clinical medicinestomatognathic systemAtlas (anatomy)CadaverRisk Factorsmedicine.arterymedicineCadaverCortical BoneHumansCervical AtlasArcuate foramenbusiness.industryAnatomyBone fractureX-Ray MicrotomographyMiddle Agedmusculoskeletal systemmedicine.diseaseVertebramedicine.anatomical_structureCase-Control StudiesSpinal FracturesSurgeryCortical boneNeurology (clinical)business030217 neurology & neurosurgeryWorld neurosurgery
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