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).
What are lateral mass of C1 C2?
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 a lateral mass fracture?
Cervical Lateral Mass Fracture Separations of the lateral mass-facet are uncommon cervical spine injuries characterized by a high degree of instability and neurological deficits.
What is a lateral mass fusion?
Abstract. Lateral mass cervical fixation is the technique of choice for posterior cervical stabilization of the lower cervical spine in the cases of cervical spondylotic myelopathy. It is used for patients who had extensive, multiple-level laminectomies with reversed cervical lordosis.
What are the lateral masses of C1?
Results: The minimum lateral mass dimensions found from 240 C1 lateral masses were 13.15 mm anterior-posterior, 4.22 mm medial-lateral, and 4.73 mm cephalocaudal.
What is the lateral mass of C1?
What is a C2 lateral mass fracture?
An isolated C2 lateral mass fracture is extremely rare and usually is found serendipitously when evaluating for other C2 traumatic pathology. If a C2 lateral mass fracture is found, other C-spine pathology must be sought. The mechanism of this fracture is axial compression with concomitant lateral bending.
What is a lateral mass?
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.
What is the purpose of a lateral cervical x ray?
The lateral cervical X-ray provides the doctor with potential pathological and biomechanical information that will aid in the care of the patient. This chapter will provide a brief overview of the steps involved with assessing the osseous integrity of the cervical spine.
Why is the lateral radiograph used in nasium Xray?
The lateral radiograph also provides information about the Sagittal plane of the atlas vertebra, which is measured so that this angle can be used to determine the Central ray for the nasium film. This slope is necessary to project the image of the atlas posterior arch so that the inferior attachment points are clearly visible on the nasium X-ray.
What do you need to know about lateral and anteroposterior Xray?
Assess the pathological integrity of the lateral and anteroposterior (AP) cervical X-rays. Develop an appreciation for the clinical significance of the sagittal cervical curve. The lateral cervical X-ray provides the doctor with potential pathological and biomechanical information that will aid in the care of the patient.