Biomechanical Study of Two Cervical Interbody Cages With Different Surfaces
- VernacularTitle:具有不同表面结构的颈椎融椎器的生物力学研究
- Author:
Kai YANG
;
Rencheng WANG
;
Xinsheng WANG
;
Haojun YAN
;
Junqing WANG
;
Jun DONG
- Publication Type:Journal Article
- Keywords:
Cervical Spine;
Biomechanics;
Interbody Fusion Device
- From:
Orthopedic Journal of China
2000;7(7):714-715
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To biomechanically compare the initial stability of two cervical interbody cages with different surfaces on human specimens.Methods: Flexibility of twenty-three cervical motion segments (two groups) were tested in axial rotation, flexion/extension and lateral bending, intact and after implantation of a cervical interbody fusion cage (SynCage-C Curved, SynCage-C Wedged). An implant pullout concluded testing. Changes in range of motion (ROM) were analyzed.Results: Both cages were effective at reducing ROM in all directions, with no significant differences in effacency. The pullout force differed significantly between the two cages, the SynCage Curved being higher. Conclusion: Differences of surfaces of the two cages don't affect their initial stability. The cage with a better contoured surface had a higher pullout force.
