What is lateral masses of C1?
What is lateral masses of C1?
The lateral masses are the most bulky and solid parts of the atlas, in order to support the weight of the head. Each carries two articular facets, a superior and an inferior.
Where is the C1 lateral mass?
The vertebral artery was not at risk when these anatomic landmarks were used. Conclusions: C1 lateral mass screws are best placed beneath the posterior arch, parallel with the arch in the sagittal plan.
What is a lateral mass in C1 C2?
Abstract. Localized C1-C2 lateral mass osteoarthritis is a degenerative disorder of the upper cervical spine that has a natural history markedly different from that of degenerative afflictions of the lower cervical spine.
What is lateral mass?
The lateral mass is the bony junction between the superior and inferior articular processes, separated medially from the lamina by the medial facet line (a sulcus at the junction of the lamina and facet).
Where is C1 and C2 on the spine?
neck
The C1 and C2 vertebrae are the highest of the spinal vertebrae and are located at the very top of the neck, connecting the head to the spine. The C1 vertebrae is named atlas and the C2 vertebrae is named axis.
Is C1 the same as atlas?
The atlas (plural: atlases) is the first cervical vertebra, commonly called C1. It is an atypical cervical vertebra with unique features. It articulates with the dens of the axis and the occiput, respectively allowing rotation of the head, and flexion, extension and lateral flexion of the head.
What helps C1 neck pain?
The treatment of pain that stems from C1-C2 in the upper neck is usually nonsurgical….Nonsurgical Treatment for C1-C2
- Medication.
- Immobilization.
- Physical therapy.
- Chiropractic manipulation.
- Traction refers to stretching and/or realigning the spine to relieve direct nerve pressure and stress on the vertebral levels.
What is the function of C1?
The C1 vertebra, known as the atlas, is the superior-most vertebra in the spinal column. It plays vital roles in the support of the skull, spinal cord, and vertebral arteries and provides attachment points for several muscles of the neck.
Why does my C1 hurt?
Fracture. Fractures of the C1 and C2 vertebrae usually occur together. Fractures may result from diving in shallow water, falling, motor vehicle accidents,1 and/or hitting an obstacle with the forehead or chin. Trauma to C1-C2 may also cause whiplash injury, spondylolisthesis, nerve injury, and/or spinal cord injury.
What is a C1 lateral mass fracture?
Description. A Jefferson fracture is a bone fracture of the vertebra C1. The vertebra C1 is a bony ring, with two wedge-shaped lateral masses, connected by relatively thin anterior and posterior arches and a transverse ligament. The lateral mass on vertebra C1, who is taller, is directed laterally.
