The odontoid process (also dens or odontoid peg) is a protuberance (process or projection) of the Axis (second cervical vertebra). It exhibits a slight constriction or neck, where it joins the main body of the vertebra.

2020年8月30日 · The odontoid process, known as the dens, is a bony element extending superiorly from the second cervical vertebra (C2, or the axis). The odontoid process is a pivotal point for rotation, with the first cervical vertebra (C1, or the atlas) rotating around it to provide the most significant single component of lateral rotation in the cervical spine.

This article seeks to provide knowledge for interpreting appearances of odontoid on computed tomography (CT) and magnetic resonance imaging (MRI) with respect to various disease processes, along with providing a quick review of the embryology and relevant anatomy.

The dens, also called the odontoid process, or the peg, is the most pronounced projecting feature of the axis. The dens exhibits a slight constriction where it joins the main body of the vertebra.

The odontoid process, also called the dens, is a protuberance of the axis. Life-threatening fractures can occur as a result of forces acting on this anatomical structure due to its proximity to the spinal cord and brainstem.

2024年9月10日 · Its most prominent feature is the odontoid process (also know as the dens or peg), which is embryologically the body of the atlas (C1) 1,2. It plays an important role in rotation of the head with the majority of movement occurring around the dens and at the atlanto-axial joint.

2015年8月8日 · A sound understanding of the development of the odontoid process, both in normal and in variant forms, as well as its phenotypical morphology is a prerequisite for the diagnosis and treatment of patients presenting with disorders affecting the cranio-cervical spine.

Also known as the odontoid process, the dens develops from two laterally placed primary centers of ossification and an apical secondary center of ossification (see Fig. 13-10). The two primary centers appear in utero and usually fuse in the midline by the eighth fetal month (Fesmire & …

2023年10月30日 · The superior surface of the body gives the impression of projecting an upward tooth-like process called the dens axis (odontoid process). However, this structure actually represents the body of the atlas that separated during early fetal life …

A sound understanding of the development of the odontoid process, both in normal and in variant forms, as well as its phenotypical morphology is a prerequisite for the diagnosis and treatment of patients presenting with disorders affecting the cranio-cervical spine.