Anatomic measurements of internal fixation-related implantation points of inferior thoracic spinal latero-anterior vertebral screws
10.3969/j.issn.2095-4344.2015.17.011
- VernacularTitle:下胸椎侧前方椎体钉内固定置入点的相关解剖学测量
- Author:
Xiangxin SUN
;
Zhijie WANG
- Publication Type:Journal Article
- From:
Chinese Journal of Tissue Engineering Research
2015;19(17):2683-2687
- CountryChina
- Language:Chinese
-
Abstract:
BACKGROUND: There are many reports on the entrance point of adult inferior thoracic spinal latero-anterior screw.Because of the differences in race,districts and the shape of vertebral body are various,and the choice of screw placement position is also varied.OBJECTIVE:To provide an anatomical reference for the implantation of clinical screws for inferior thoracic spinal latero-anterior fixation with the concave rib set as a reference.METHODS:Spinal specimens from 20 adult cadavers were observed,and anatomical data were colected from the concave ribs.One vernier caliper was used for the measurements.RESULTS AND CONCLUSION:The thoracic transverse diameters and the distance between the upper and the inferior edge of the concave rib and upper endplate increased gradualy as the vertebral number increased,whereas the distances between the upper and the inferior edge of the concave rib and inferior endplate and between the anterior edge of the concave rib and anterior edge of the vertebral canal decreased gradualy.Above findings suggested that the anatomical positions of the inferior thoracic concave ribs folowed a set of rules.The concave rib could be used as a simple,constant,and reliable reference point for inferior thoracic spinal latero-anterior fixation screw placement.
