Radiographic assessment of vertebral artery injury in anterior cervical surgery in healthy adults
10.3760/cma.j.issn.0529-5815.2017.03.007
- VernacularTitle: 健康成人颈椎前路术中椎动脉损伤风险的影像学评估
- Author:
Hongli WANG
1
;
Lei JIANG
;
Feizhou LYU
;
Xiaosheng MA
;
Xinlei XIA
;
Jianyuan JIANG
Author Information
1. Department of Orthopaedics, Huashan Hospital, Fudan University, Shanghai 200040, China
- Publication Type:Journal Article
- Keywords:
Cervical vertebrae;
Vertebral artery injury;
Anterior cervical decompression;
Anatomical study
- From:
Chinese Journal of Surgery
2017;55(3):198-202
- CountryChina
- Language:Chinese
-
Abstract:
Objectives:To study the relationship between the anatomical parameters of transverse foramen and intervertebral discs in the cross-section of the cervical spine in healthy adults, and to evaluate the risk of vertebral artery injury in the anterior cervical spine surgery.
Methods:There were 24 healthy adults(12 male, 12 female) underwent neck CT angiography with clear vertebral artery and the adjacent structure imaging from June to December 2014 in Huashan Hospital, Fudan University. The anatomical parameters of vertebral artery V2 segment with lower cervical vertebrae and intervertebral discs were measured by cross-sectional images of C3-6. The corresponding parameters of different sex and both sides of the same segment were analyzed by independent samples t-test and paired t test, respectively. The least significant difference(LSD) t test was used to compare the corresponding data between different segments.
Results:The vertebral artery was not walking in the middle of the transverse foramen in healthy individual, but partial medial, partial front walking. Transverse diameter of transverse foramen in male and female were 6.62-6.89 mm and 6.21-6.45 mm, and sagittal diameter was 5.41-6.48 mm and 5.40-6.10 mm, respectively.The transverse foramen were slightly oval. The distance between vertebral artery and midline in male and female were 14.23-16.12 mm and 13.60-15.04 mm, respectively, which was much larger than the width of cervical vertebral corpectomy. Compared with C3-4, intervertebral disc, the transverse distance between the vertebral artery and the uncovertebral joint of C4-5, C5-6 was smaller, and the distance from the vertebral artery to the posterior margin of the uncovertebral joint was relatively small, the difference was statistically significant (t=2.449, P=0.022). The distance from vertebral artery to the posterior margin of uncinate process was 1/5-2/5 of the distance between the anterior and posterior edge of the corresponding segmental vertebra.
Conclusion:Based on this anatomical study, the risk of vertebral artery injury in conventional anterior cervical decompression is small, and the risk of vertebral artery injury in different segments is slightly different.
