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J Korean Neurosurg Soc. 2012 Mar;51(3):177-81. doi: 10.3340/jkns.2012.51.3.177. Epub 2012 Mar 31.

Intraoperative vertebral artery angiography to guide c1-2 transarticular screw fixation in a patient with athetoid cerebral palsy.

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  • 1Department of Neurosurgery, Eulji University Hospital, Daejeon, Korea.


We present a case of an athetoid cerebral palsy with quadriparesis caused by kyphotic deformity of the cervical spine, severe spinal stenosis at the cervicomedullary junction, and atlantoaxial instability. The patient improved after the first surgery, which included a C1 total laminectomy and C-arm guided righ side unilateral C1-2 transarticular screw fixation. C1-2 fixation was not performed on the other side because of an aberrant and dominant vertebral artery (VA). Eight months after the first operation, the patient required revision surgery for persistent neck pain and screw malposition. We used intraoperative VA angiography with simultaneous fluoroscopy for precise image guidance during bilateral C1-2 transarticular screw fixation. Intraoperative VA angiography allowed the accurate insertion of screws, and can therefore be used to avoid VA injury during C1-2 transarticular screw fixation in comorbid patients with atlantoaxial deformities.


Athetoid cerebral palsy; Atlantoaxial instability; Intraoperative angiography; Transarticular screw fixation; Vertebral artery

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