week 6 - cervical Flashcards
what are the normal views for cervical spine
AP lower cervical spine
AP open mouth
Neutral lateral cervical spine
what are the special views
oblique projection
flexion / extension views
what vertebrae is atlas
c1
what vertebrae is axis
c2
what view allows you to see atlas and axis
open mouth view
what is the oblique view useful for
allows us to see lateral spinal foramen
what is the atlantodental interspace (ADI)
measurement of the interspace between posterior aspect of anterior arch and DENS
what is dens / obontoid process
protuberance of the axis (c2)
what is georges line
line transitioning through the posterior vertical bodies in cervical spine
what is bilateral facet dislocation (perched facet)
inferior articular process appears to sit perched on the ipsilateral superior and articular process of the vertebra below
where does the pars interarticularis lie
between superior and inferior articular process bilaterally at each vertebral level
what is the cervical line
c1 slippage due to obontoid fracture
what is sagittal dimension of the cx spinal canal
measuring canal space from superior imposition of lamina to posterior vertebral body
what is atlantoaxial alignment
lateral aspect of lateral c1 should align to c2, if not it can prevent rotation and dislocation
what is the cervical gravity line
a vertical line is drawn through the apex of the odontoid process
what is cervical lordosis
the normal anterior curvature of the cervical and lumbar spines when viewed from the side
what is prevertebral soft tissue space
a cylinder of soft tissue lying posterior to the retropharyneal space and danger space surrounded by the prevertebral layer of the deep cervical fascia and extends from the skull base to upper mediastinum
what is diffuse idiopathic skeletal hyperostosis (DISH)
type of arthritis that affects tendons/ligaments and it can cause calcification and it can cause back pain and stiffness
what is the retropharyngeal soft tissue space
a space from the base of skull to mediastinum - its anterior to the prevertebral muscles and posterior to the pharynx and esophagus
page 261
what is occipitilisation of the atlas
