Biomechanical differences of Coflex-F and pedicle screw fixation combined with TLIF or ALIF--a finite element study |
| |
Authors: | Lo Cheng-Chan Tsai Kai-Jow Zhong Zheng-Cheng Chen Shih-Hao Hung Chinghua |
| |
Affiliation: | Department of Mechanical Engineering, National Chiao Tung University, Hsinchu, Taiwan. |
| |
Abstract: | Lumbar interbody fusion is a common procedure for treating lower back pain related to degenerative disc diseases. The Coflex-F is a recently developed interspinous spacer, the makers of which claim that it can provide stabilisation similar to pedicle screw fixation. Therefore, this study compares the biomechanical behaviour of the Coflex-F device and pedicle screw fixation with transforaminal lumbar interbody fusion (TLIF) or anterior lumbar interbody fusion (ALIF) surgeries by using finite element analysis. The results show that the Coflex-F device combined with ALIF surgery can provide stability similar to the pedicle screw fixation combined with TLIF or ALIF surgery. Also, the posterior instrumentations (Coflex-F and pedicle screw fixation) combined with TLIF surgery had lower stability than when combined with ALIF surgery. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|