& C-2 well, especially in pt w/ limited mandibular excursionĬomparison of computerized tomography parameters of the cervical spine in normal control subjects and spinal cord-injured patients. shooting one view w/ beam slightly angulated cephalad and another w/ it slightly caudad increased likelihood of visualizing C-1 in comatose pt, place gauze roll between teeth mandible is held open (open mouth anteroposterior) to see C-1 & C-2 central beam is directed toward the C4 vertebra (at the point of Adam's apple) w/ 15-20 deg cephalic tilt unilateral facet dislocation may result in lateral rotation of one spinous process with respect to the others interspinous distance 1.5 times distance above or below level may indicate a dislocation or subluxation A lateral view in isolation will only detect 75 of c-spine injuries. This combination allows for good visualisation of the entire cervical spine. interspinous distances should be symmetric throughout Where plain radiography is indicated, three films are taken of the cervical spine: lateral, anteroposterior (AP) and open mouth (peg) views. lateral masses appear as bilateral smooth undualing margins, & spinous processes are in the midline 1st & 2nd vertebrae are obscurred in this projection by mandible and basiocciput, whereas lower cervical vertebrae & cervico-throracic lateral radiograph may show no abnormality at all key feature is a midsagittal fracture plane extending from one vertebral end plate to other, which is best seen on AP view this frx often occurs in combo with other fractures in the same or adjacent vertebrae, for example, laminar fracture, facetĭislocation, or teardrop fracture dislocation, extensive ligamentous damage, and paralysis saggital plane frx is verticle compression frx, but more specifically it is sagittally and not coronally oriented to exam oblique views where fascet relationships are best seen because dislocation/sublux may be subtle on plain series any rotation of spinous processes on AP view should alert M.D. lateral tilting of the vertebral body on the anterior view malalignment of the spinous processes on the anterior view this view may show altered separation between spinous process tips caused by flexion-induced injuries sagittal plane frxs (also called vertical compression frx) may be visualized on the anteroposterior view this view demonstrates C3 thru C7 vertebral bodies, spinous processes and lateral masses
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