Preventive measure of fixation failure of thoracolumbar vertebral fracture with pedicle screw
- VernacularTitle:胸腰椎骨折经椎弓根内固定失误及其预防
- Author:
Jianfeng SUN
;
Zihua TANG
- Publication Type:Journal Article
- Keywords:
thoracolumbar vertebral fracture;
internal fracture fixation;
fault analysis
- From:
Orthopedic Journal of China
2006;0(14):-
- CountryChina
- Language:Chinese
-
Abstract:
[Objective]To discuss the fault and its prevention of thoracolumbar vertebral fracture treated with pedicle screw.[Method]A retrospective study of 13 failure patients of thoracolumbar vertebral fracture were treated with pedicle screws from July 1998 to October 2007.The pedicle screw was found entering into the vertebral canal or being outside of the vertebral pedicle in 6 patients.The broken pedicle screw were found in 3 patients.The fixing position were fault in 3 patients and the system were loosen in 3 patients in the first X-ray photogram.One patient was misdiagnosed and 1 pedicle screw was broken within 6 months.[Result]Two patients refused any treatment.Eleven patients were followed-up in this group ( ranged from 6 months to 4 years,mean 15 months).The fixator were removed in 7 patients and 1 broken screw was left in the vertebral body.Another 4 patients were operated with new fixation and fusion in the second time.[Conclusion]The fixed approach of the vertebral pedicle root is narrow and small.Failure of internal fixation could only be avoided by means of careful reading Roentgen images preoperatively,fluoroscopical examination intraoperatively,and avoiding second implantation.
