Related Experiment Video
Updated: Aug 11, 2026
08:38
Three-dimensional Navigation-guided, Prone, Single-position, Lateral Lumbar Interbody Fusion Technique
Published on: July 15, 2021
Posterior lumbar interbody cages do not augment segmental biomechanical stability
J R Dimar1, D J Beck, S D Glassman
1Department of Orthopaedic Surgery, University of Louisville, Kentucky, USA.
American Journal of Orthopedics (Belle Mead, N.J.)
|August 25, 2001
Abstract:
The effect on stiffness of installing posterior threaded interbody cages at LA-L5 was evaluated using fresh human cadaveric spine specimens. The cages did not increase spine stiffness significantly in any tested range of motion. Supplemental posterior pedicular screw/rod instrumentation, however, significantly increased stiffness. The assertion that use of cages as isolated posterior implants improves stability may be invalid.
