Related Experiment Video
Updated: Jul 4, 2025
Uniportal Full Endoscopic Posterolateral Transforaminal Lumbar Interbody Fusion
Published on: June 6, 2025
Biportal endoscopic-assisted cortical bone trajectory screw placement and lumbar interbody fusion
Chengyue Zhu1,2, Jiaming Liang1, Hao Pan1,2
1Department of Orthopaedics, Hangzhou Traditional Chinese Medicine Hospital Affiliated to Zhejiang Chinese Medical University, Tiyuchang Road No. 453, Hangzhou, 310007, China.
Background:
Endoscopically assisted screw fixation with lumbar interbody fusion is rarely performed. We succeeded in implanting the cortical bone trajectory (CBT) screws under the guidance of unilateral biportal endoscopy (UBE).
Method:
We attempted endoscopically assisted screw fixation in a patient with degenerative spondylolisthesis. Through a third portal, ipsilateral CBT screws were implanted without complications.
Conclusions:
We successfully performed unilateral biportal endoscopic lumbar interbody fusion (ULIF) with CBT and reversed CBT screws. Compared with percutaneous pedicle screw (PPS) placement, this procedure is a minimally invasive, endoscopic alternative that allows precise screw placement.
