Effects of three types of fusion methods on stress of adjacent segments by finite element analysis
10.3969/j.issn.1006-5725.2015.06.011
- VernacularTitle:3种植骨融合方法对邻近节段应力影响的有限元分析
- Author:
Jibao CHEN
;
Hua GUO
;
Mei YING
;
Chunyang XI
;
Jinglong YAN
- Publication Type:Journal Article
- Keywords:
Fusion;
Lumbar;
The Finite Element;
Biomechanic
- From:
The Journal of Practical Medicine
2015;(6):898-901
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the different biomechanics surgical effects of posterolateral fusion , the transverse fusion and the interbody fusion. Method Scan CT was followed with preprocess of images. The Mimics , HyperMesh and Geomagic Studio Reverse engineering softwares were used to establish the modles of lumbar fusion , then the finite element computation was conducted by using the Abaqus finite element software. Result The EF of each lumbar modle was established , the EF of the interbody fusionwas rised evidently. After the fusion , the stress of the adjacent lumbar were also rised, among them the stress of the upper adjacent segment in tnterbody fusion was the most in extension and rotation , with statistical significance ( P < 0 . 05 ) . In the antexion the stress of the transverse fusion was the most, and the new type of posterolateral fusion least, three of them all hadstatistical significance (P<0.05). In the lateral flexion, they had no statistical significance (P>0.05). About the under adjacent sengment, in the extension and antexion, the stress of the interbody fusion was the most, and the new type of posterolateral fusion was the least, the three of them all haved statistical significance (P<0.05, respectively). In the rotation and lateral flexion, with no statistical significance (P>0.05). Conclusion After the fusion, the EF of the lumbar and the stress of the lumbar disc are all established, the interbody fusion is most, while the others are lower.
