Evidence map›Paper›PMID 40520686›Full record

ArticleFrontiers in surgery2025

Biportal endoscopic bilateral decompression in lumbar spinal stenosis: a 3-year retrospective cohort study.

Dongyue Li, Yunzhong Cheng, Peng Yin, Qingjun Su

Abstract read
In one paragraph

Article 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 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. MRI-defined lumbar fasciitis is associated with inferior subjective outcomes after endoscopic decompression for lumbar spinal stenosis.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2026
    Article
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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

4 authors.

Dongyue LiOrthopaedic Department, Chaoyang Hospital Affiliated to Capital Medical University, Beijing, China.
Yunzhong ChengOrthopaedic Department, Chaoyang Hospital Affiliated to Capital Medical University, Beijing, China.
Peng YinOrthopaedic Department, Chaoyang Hospital Affiliated to Capital Medical University, Beijing, China.
Qingjun SuOrthopaedic Department, Chaoyang Hospital Affiliated to Capital Medical University, Beijing, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Biportal endoscopic bilateral decompression (BEBD) has gained recognition for treating lumbar spinal stenosis (LSS) through preservation of posterior spinal structures while achieving bilateral neural decompression. However, the relationship between postoperative radiographic findings and clinical outcomes remains unclear. This study investigates clinical efficacy, radiographic findings, and their potential correlations following BEBD. Methods: A retrospective cohort analysis of 51 LSS patients undergoing BEBD (January 2020-December 2021) was conducted. Intraoperative parameters, complications, and clinical outcomes [Visual Analog Scale (VAS), Oswestry Disability Index (ODI), Modified Macnab criteria] were evaluated preoperatively, at 1 month, and final follow-up. Radiographic parameters included medial facetectomy surface angle (MFSA), facet joint preservation rate (FJPR), lateral recess decompression rate (LRDR), dural sac cross-sectional area expansion rate (DSCAER), and segmental range of motion (SROM). Results: The procedure demonstrated the mean operative time of 93.6 ± 13.7 min, with follow-up 36-60 months (mean 42.5 ± 6.7 months). Clinically, lower back pain (VAS: 5.9 ± 0.9-2.3 ± 0.6 at 1 month; 0.6 ± 0.5 final) and leg pain (6.8 ± 0.9-1.7 ± 0.6 at 1 month; 0.5 ± 0.6 final) showed sustained, statistically significant reductions ( Conclusions: BEBD demonstrates significant clinical improvement in LSS patients, with marked DSCA expansion and preserved FJ stability. The technique achieves effective bilateral decompression with preserved biomechanical stability. Radiographic findings showed no correlation with clinical success, indicating multifactorial postoperative influences.

Indexed as

bilateral decompressionbiportal endoscopyclinical efficacylumbar spinal stenosisradiographic findings

Identifiers

PMID40520686
PMCPMC12162478

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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.