Evidence map›Paper›PMID 40589530›Full record

SynthesisFrontiers in surgery2025

Unilateral Endoscopic and Unilateral Biportal Endoscopic surgery for lumbar spinal stenosis: a systematic review and meta-analysis.

Kun Li, Zhibin Zhang, Jiangyu Ran, Liang Ma, Xiangyu Meng

Abstract readSystematic Review
In one paragraph

Synthesis in Frontiers in surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed.

  1. Clinical efficacy of uniportal and biportal endoscopic ULBD techniques in the treatment of lumbar spinal stenosis.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas · 2026
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  5. [Impact of lamina formation range on lumbar biomechanics in unilateral biportal endoscopic spine surgery: a finite element analysis for surgical optimization].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2026
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  7. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Kun Li *Graduate School of Xinjiang Medical University, Urumqi, China.
Zhibin Zhang *Graduate School of Xinjiang Medical University, Urumqi, China.
Jiangyu Ran *Graduate School of Xinjiang Medical University, Urumqi, China.
Liang MaGraduate School of Xinjiang Medical University, Urumqi, China.
Xiangyu MengGraduate School of Xinjiang Medical University, Urumqi, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective: Lumbar spinal stenosis (LSS), the most frequently occurring degenerative spinal disease, significantly affects patient well-being. Preliminary clinical studies indicate favorable outcomes from unilateral biportal endoscopy (UBE) and unilateral endoscopy (UE) for managing LSS. This meta-analysis assessed the clinical effectiveness and safety profiles of unilateral laminotomy for bilateral decompression (ULBD) via these two minimally invasive endoscopic methods, aiming to establish evidence-based clinical recommendations. Materials and methods: A thorough examination of electronic databases was performed, encompassing PubMed, Cochrane Library, Web of Science, Embase, Medline, CNKI, WanFang, and VIP. Research assessing the clinical outcomes and complications of UBE-ULBD compared to UE-ULBD in the treatment of LSS was deemed suitable for inclusion. The outcome measures extracted comprised the Visual Analogue Scale (VAS), Oswestry Disability Index (ODI), duration of surgery, length of hospitalization, intraoperative blood loss, area of postoperative dural sac expansion, angle of ipsilateral facet joint resection, and occurrences of surgical complications. Results: Seventeen articles met inclusion criteria, encompassing one prospective cohort study, two case-control studies, and fourteen retrospective studies, involving 1, 457 total patients. The meta-analysis indicated that there were no statistically significant differences observed between the UBE and UE groups in terms of postoperative VAS scores for back and leg pain, as well as ODI scores at the intervals of 1 week, 3-6 months, and 6-12 months ( Conclusions: The meta-analysis indicates that the UBE technique exhibits similar long-term clinical efficacy, blood loss, duration of hospital stay, and rates of complications when compared to the UE technique. However, the UBE group exhibited shorter surgical duration and greater dural sac expansion area.

Indexed as

endoscopylaminectomyspinal stenosisunilateral biportal endoscopic spine surgeryunilateral endoscopic spine surgeryunilateral laminotomy for bilateral decompression

Identifiers

PMID40589530
PMCPMC12206719

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.