Anatomical study on vertebral artety and its application in transpedicle screw fixation for upper cervical vetebrae.
- Author:
Xing-Guo WU
1
;
Jian HUANG
;
Yu-Qing JIANG
;
Wei-Kang GUO
;
Jun WANG
Author Information
- Publication Type:Journal Article
- MeSH: Adult; Aged; Cervical Vertebrae; surgery; Female; Fracture Fixation, Internal; methods; Humans; Male; Middle Aged; Pedicle Screws; Vertebral Artery; anatomy & histology
- From: China Journal of Orthopaedics and Traumatology 2014;27(9):772-774
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo investigate the relationship of upper cervical pedicle and vertebral artery (VA) location in order to improve the safety of transpedicular screw insertion.
METHODSThe vertebral arteries on 12 sides of 6 adult pate cadaverous specimens were dissected. The distance between VA and VA groove at the atlas needling point of transpedicle screw, and the distance between VA and the inner edge of axis cervical foramen, and the VA external diameter in axis cervical foramen were measured respectively.
RESULTSThe distance between VA and VA groove was (1.96 ± 0.72) mm on the left and (1.99 ± 0.61)mm on the right at the atlas needling point of transpedicle screw, the distance between VA and the inner edge of axis cervical foramen was (2.23 ± 0.43) mm on the left and (2.30 ± 0.39) mm on the right, the VA external diameter in axis cervical foramen was (3.03 ± 0.48) mm on the left and (2.98 ± 0.75) mm on the right.
CONCLUSIONIt is unlikely to injury VA when the transpedicle screws of upper cervical vertebrae were implanted correctly besides high straddled VA, and the individualization must be performed in the process.
