Analysis of screw placement accuracy following mini-open anterior correction for adolescent idiopathic scoliosis
- VernacularTitle:胸腔镜辅助小切口前路矫形置钉安全性的研究
- Author:
Yong QIU
;
Weijun WANG
;
Bin WANG
- Publication Type:Journal Article
- Keywords:
Scoliosis;
Thoracoscopy;
Bone screws;
Aorta, thoracic;
Spinal canal
- From:
Chinese Journal of Orthopaedics
2000;0(11):-
- CountryChina
- Language:Chinese
-
Abstract:
1 mm); A, the screw tip was adjacent to the aorta (≤1 mm); C, the screw tip was felt to be against the aorta and creating contour deformity. The angle composed of the central line of the screw and the central line of vertebral body on posterior X-ray film was also measured. Results The average correction of the main thoracic curve was 77.7% postoperatively. 155 screws were inserted, of which 134 screws(86.5%) had a bicortical purchase. 123 screws(79.4%) were distant from the aorta. Two screws encroached into the spinal canal. There were no significant difference between the proximal screws, the periapical screws and the distal screws. There were no vascular or neurologic complications or instrumentation failure during operation or follow-up. Conclusion Mini-open anterior correction for type Lenke 1 scoliosis enable a satisfy bicortical screw placement and curve correction. Sequential CT scan before surgery may improve the accuracy of screw placement, thus avoid the aortic or neurologic complication.
