Comparison of the biomechanical effect of minimally invasive injectable graft 3 on pedicle screw fixation with that of bone cement
- VernacularTitle:可注射硫酸钙MIIGX3与医用骨水泥对椎弓根钉固定作用的比较研究
- Author:
Hailin LU
;
Hui ZHENG
;
Xiaodong YI
- Publication Type:Journal Article
- Keywords:
Pedicle screw;
Lumbar spine;
Minimally invasive injectable graft X_3;
Bone cement;
Biomechanics
- From:
Orthopedic Journal of China
2006;0(10):-
- CountryChina
- Language:Chinese
-
Abstract:
[Objective]To compare the biomechanical effect of minimally invasive injectable graf X_3(MIIGX_3) on strengthening pedicle screw fixation with that of bone cement.[Method]Eight fresh pig lumbar vertebrae were harvested.One track was made in each vertebral pedicle.Before pedicle screw fixation,one track of one side bertebra was augmented with MIIGX3,and another side vertebra with bone cement.Pullout test was performed 24 hours after the fixation,and maximum axial pullout strength was measured.[Result]The maximum axial pullout strength is 1915 N?375 N in MIIGX3 group,and 3625 N?775 N in bone cement group.There was significant difference between two groups(P
