[Clinical efficacy of Corner approach of unilateral biportal endoscopy in the treatment of low lumbar disc herniation].

Authors

Rongxue Shao, Wei Cheng, Jiaming Liang, Chengyue Zhu, Wei Zhang, Hao Pan

Published in

Zhongguo gu shang = China journal of orthopaedics and traumatology. Volume 39. Issue 7. Pages 698-703. Jul 25, 2026.

Abstract

To explore the technique and early clinical efficacy of unilateral biportal endoscopy (UBE) with the Corner approach in the treatment of low lumbar disc herniation (LDH).
A retrospective analysis was conducted on the clinical data of 22 patients with low LDH who underwent treatment via the Corner approach of UBE from June 2022 to June 2023. Among these patients, there were 10 males and 12 females;their ages ranged from 37 to 82 years old, with an average of (56.8±13.8) years old;the disease duration varied from 3 to 32 months, with an average of (16.5±9.0) months. The intraoperative endoscopic operation time, postoperative drainage volume, postoperative hospital stay, and related complications were recorded and analyzed. The clinical efficacy was evaluated based on the Oswestry disability index(ODI), visual analogue scale (VAS) for low back pain and lower limb pain, and modified Macnab criteria measured preoperatively, at 1, 4, and 8 weeks postoperatively, and at the final follow-up.
All patients were followed up for 6 to 12 months, with an average of(9.27±2.05) months. All patients successfully completed the operation under endoscopy. The intraoperative endoscopic operation time was(16.50±8.40) minutes for single-level cases and (32.00±10.56) minutes for double-level cases; the postoperative drainage volume was (20.00±13.50) ml for single-level cases and (38.00±21.82) ml for double-level cases. The postoperative hospital stay was (5.58±4.62) days. Compared with the preoperative data, the ODI and VAS for low back pain and lower limb pain of the patients at all postoperative time points showed statistically significant differences(P<0.05). At the final follow-up, according to the modified MacNab criteria, 17 cases were rated as excellent, 4 cases as good, and 1 case as fair.
The Corner approach of UBE for the treatment of low LDH has reliable clinical efficacy, with advantages including minimal bony resection, shoter operative time, and clear visual field.

PMID:
42544806
Bibliographic data and abstract were imported from PubMed on 03 Aug 2026.

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