Bilateral absence of foramen transversarium in atlas vertebra : a case report
نویسنده
چکیده
Introduction Atlas is the first cervical vertebra. It is ring shaped, without a body. It has an anterior arch, a posterior arch and two lateral masses. The lateral masses articulate with the occipital condyles to form an ellipsoid type of synovial joint. The anterior arch articulates with the dens of the axis to form a pivot type of synovial joint. The posterior arch is grooved by the third part of the vertebral artery. The transverse process has a foramen transversarium where passes the vertebral artery.
منابع مشابه
Asymmetric Atlas Assimilation And Potential Danger To The Brainstem: A Case Report
Atlas is the first cervical vertebra. It does not have a body like other cervical vertebrae. It has two transverse processes, each one of which bears a foramen transversarium. The vertebral artery passes through this foramen. It has two lateral masses which articulate with the occipital condyles to form atlanto-occipital joints. Rarely, the atlas vertebra fuses with the occipital bone. We obser...
متن کاملArcuate foramen of atlas: incidence, phylogenetic and clinical significance.
Arcuate foramen is less known trait of the human atlas vertebra formed by a delicate bony spiculum, which arches backward from the posterior end of the superior articular process. Examination of 1044 human atlas vertebra revealed that the trait was present in 13.8% of the samples. The mean length of the arcuate foramen form was 7.16 mm on the left side and 9.99 mm on the right side in bilateral...
متن کاملStudy of foramen transversaria of first cervical vertebrae and its variations
Introduction Knowledge of variations in foramen tranversarium of first cervical vertebrae is surgically relevant, as its anatomical relation with third part of vertebral artery is one of the proposed causative factor for cervicogenic headache. This study was aimed to determine the incidence, morphological and morphometrical variations of foramen transversarium (FT) of atlas vertebrae in North I...
متن کاملPosterior Arch Defect of the Atlas Associated to Absence of Costal Element of Foramen Transversarium from 16th-Century Sardinia (Italy).
STUDY DESIGN A paleopathological case of posterior arch defect of the atlas associated to the absence of costal element of the foramen transversarium. OBJECTIVE In living patients as well as in postmortem analysis it should be difficult to distinguish between a congenital and an acquired anomaly. Any anomaly in the anatomy of atlas should be taken into consideration by clinicians, surgeons, r...
متن کاملAccessory transverse foramina in the cervical spine: incidence, embryological basis, morphology and surgical importance.
AIM To study the incidence of accessory foramina transversaria in cervical spine and to analyze them morphologically with emphasize on their embryological and surgical importance. MATERIAL AND METHODS The study included 363 human cervical vertebrae which were procured from the bone collections of the Department of Anatomy. The foramen transversarium was observed macroscopically on both sides ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2006