Related Experiment Video
Updated: May 23, 2026
Uniportal Full Endoscopic Posterolateral Transforaminal Lumbar Interbody Fusion
Published on: June 6, 2025
[Bio-mechanical evaluation of extreme lateral transforaminal lumbar interbody fusion]
Ming-jie Yang1, Hao-ran Yan, Li-jun Li
1Department of Orthopaedics, East Hospital Affiliated to Tongji University, Shanghai 200120, China.
Objective:
To evaluate the feasibility and post-operation stability of extreme lateral transforaminal lumbar interbody fusion (E-TLIF) and other traditional surgical approach via bio-mechanical test.
Methods:
There were 24 normal lumbar spine segment of swine were divided into the following four groups: control group, standard group (internal fixed with pedicle screws only), transforaminal lumbar interbody fusion (TLIF) group and E-TLIF group. The specimen in anteflect, hypsokinesis, lateral flexion and rotate movements were tested respectively with bio-mechanical devices to study on the load-straining changes and biomechanics index.
Results:
After TLIF or E-TLIF, specimen turned out more steady than normal control group (t = 4.17 - 4.53, P < 0.01). Compared with TLIF group [linear displacement (3.98 ± 0.22) mm, angular displacement 3.03° ± 0.18°], specimen after E-TLIF [linear displacement (3.40 ± 0.09) mm, angular displacement 2.57° ± 0.12°] were more stable in biomechanics index on lateral flection movement (t = 2.61, P < 0.05), but no difference on axial or rotational movements (P > 0.05).
Conclusion:
E-TLIF is a safe and more efficient operation approach.
