Related Experiment Video
Updated: Sep 3, 2025

Uniportal Full Endoscopic Posterolateral Transforaminal Lumbar Interbody Fusion
Published on: June 6, 2025
Lumbar interbody fusion with bilateral cages using a biportal endoscopic technique with a third portal
Chengyue Zhu1,2, Liangping Zhang3, Hao Pan1
1Department of Orthopaedics, Hangzhou Traditional Chinese Medicine Hospital Affiliated to Zhejiang Chinese Medical University, Tiyuchang Road No. 453, Hangzhou, 310007, China.
Background:
Unilateral biportal endoscopic lumbar interbody fusion (ULIF) with one cage results in fewer definitive fusions (Park et al. in Neurosurg Rev 42(3):753-761, 2019). We succeeded in inserting bilateral cages during ULIF.
Method:
We attempted posterior ULIF for degenerative lumbar spondylolisthesis with bilateral recess stenosis. With the help of a third portal, ULIF with bilateral cage insertion was performed under general anaesthesia.
Conclusions:
We successfully performed ULIF with bilateral cages with the help of a third portal. This procedure may be an alternative for treating lumbar stenosis with instability.

