None listed
Conditions
Interventions
high-risk group:No intervention measures
low-risk group:No intervention measures
Sponsors
The Spine Surgery Department, Guangdong Second Provincial General Hospital
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1.There is a clear clinical diagnosis, and the diagnosed disease is unrelated to vertebral artery variations. 2.Routine 2mm thin-slice CT scan and 0.4-1.0mm thin-slice CT angiography of the head and neck have been performed.
Exclusion criteria
Exclusion criteria: 1.Unilateral or bilateral hypoplasia or absence of the vertebral artery. 2.History of cervical spine or head and neck surgery. 3.Patients with atherosclerosis leading to vertebral artery stenosis or occlusion. 4.History of trauma or cervical spine tumors causing bone destruction in the C2 pedicle. 5.Congenital diseases such as Down syndrome, atlanto-occipital fusion, or Klippel-Feil syndrome. 6.History of rheumatoid arthritis or ankylosing spondylitis. 7.Incomplete medical history.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| C2 pedicle width; | — |
Secondary
| Measure | Time frame |
|---|---|
| screw size;screw trajectory inclination angle;screw medial inclination angle;entry point;accuracy;sensitivity;specificity; | — |
Countries
China
Contacts
Public ContactLi Zhang
The Spine Surgery Department, Guangdong Second Provincial General Hospital
Outcome results
None listed