Mobile C-arm CT scan in surgery for thoracolumbar burst fractures of type A3
10.3760/cma.j.issn.1671-7600.2017.09.014
- VernacularTitle:移动C型臂CT在A3型胸腰椎爆裂骨折手术中的初步应用
- Author:
Haifeng HUANG
1
,
2
;
550002 贵阳,贵州省人民医院骨科
;
Xiaobin TIAN
;
Quan XIE
;
Bo LI
;
Xianteng YANG
;
Zhuojia ZHOU
;
Weifeng ZHAO
;
Zhi PENG
;
Shanshan LI
Author Information
1. 550025 贵阳,贵州大学医学院
2. 550002 贵阳,贵州省人民医院骨科
- Keywords:
Thoracic vertebrae;
Lumbar vertebrae;
Fractures,bone;
Fracture fixation,internal;
C-arm CT
- From:
Chinese Journal of Orthopaedic Trauma
2017;19(9):810-813
- CountryChina
- Language:Chinese
-
Abstract:
Objective To discuss the application of mobile C-arm CT scan in the operations for thoracolumbar burst fractures of type A3.Methods From January 2012 to December 2014,21 patients with single-segment thoracolumbar burst fracture (AO type A3) were treated.They were 15 males and 6 females,aged from 17 to 68 years (average,43.6 years).By the American Spinal Injury Association (ASIA) grading,one was grade A,2 were grade B,12 grade C,4 grade D and 2 grade E.Preoperative CT examination was conducted.Mobile C-arm CT scan was performed to evaluate reduction of the fragments after the fracture was reset by posterior pedicle screwing.Laminotomy for canal decompression or reduction of the fragments would be performed if it was indicated by the results of mobile C-arm CT scan.CT examination was conducted postoperatively to assess the fracture reduction and recovery of the canal calibre.Results All the patients were followed up for an average of 15.5 months (from 10 to 18 months).Their cobb angle,vertebral anterior margin compression rate,spinal occupancy rate,vertebral translocation rate and visual analogue score at postoperation and final follow-up were significantly improved compared with their preoperative values (P ＜ 0.05),but there were no significant differences between postoperation and final follow-up in all the above indexes (P ＞ 0.05).Postoperative ASIA grading showed that the spinal function was improved from grade B to grade C in one,from grade C to grade D in 4 cases,from grade C to grade E in 5 cases,and from grade D to grade E in 3 cases.Conclusion Since intraoperative C-arm CT scan can help decide whether laminectomy for canal decompression is conducted or not in the surgery of thoracolumbar burst fractures,it enhances the surgical safety and reliability.
