SynthesisEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society2023
Clinical outcomes of uniportal compared with biportal endoscopic decompression for the treatment of lumbar spinal stenosis: a systematic review and meta-analysis.
Synthesis in 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, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 1 of them a synthesis that pooled 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.
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.
Who cites it
30 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Clinical efficacy and safety of unilateral biportal endoscopy for thoracic ossification of ligamentum flavum: A systematic review.Joint diseases and related surgery · 2026Pooled it
- Addressing limitations of previous meta-analyses of uniportal versus biportal endoscopic lumbar surgery: an umbrella review and de-duplicated, pathology-stratified meta-analysis.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 · 2026Review
- Validation of a modular low-fidelity training model for biportal endoscopic spine surgery.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 · 2026Article
- Lumbar approaches and procedures for spinal stenosis (Neurocore-LAPS): an international survey of decompression strategies across disease extent.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 · 2026Article
- Fully navigated biportal endoscopic lumbar decompression using non-invasive surface registration: a single-institution technical feasibility series.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 · 2026Article
- Comparison of biportal versus uniportal endoscopic decompression for the treatment of lumbar degenerative disease: a systematic review and meta‑analysis.Asian spine journal · 2026Review
- Biportal endoscopic foraminotomy of the L7-S1 neuroforamen in dogs: Description of surgical technique and ex vivo comparison with conventional open dorsolateral foraminotomy.Veterinary surgery : VS · 2026Article
- Long-term comparative study of Open-TLIF, MIS-TLIF, and UBE-TLIF in single-level degenerative lumbar spondylolisthesis.European journal of medical research · 2026Article
- Unilateral biportal endoscopic decompression compared with tubular or uniportal endoscopic decompression for lumbar spinal stenosis: a systematic review and meta-analysis.Frontiers in surgery · 2026Review
- Assisted full-endoscopic spine surgery for lumbar spinal stenosis: Technical note and learning curve.Brain & spine · 2026Article
- Effect of body mass index and disc degeneration on lumbar biomechanics after unilateral biportal endoscopy-unilateral laminectomy bilateral decompression for lumbar spinal stenosis: a finite element study.Frontiers in bioengineering and biotechnology · 2026Article
- Review
- Mounting the learning curve in unilateral biportal endoscopic lumbar decompression in an Asian population: experience of a single surgeon's first 105 consecutive cases with early functional outcomes.Journal of spine surgery (Hong Kong) · 2025Article
- Spine endoscopy in transition: the case for mastery of both uniportal and biportal techniques.Journal of spine surgery (Hong Kong) · 2025Article
- Article
- Unilateral biportal endoscopic decompression for lumbar spinal stenosis in achondroplasia: a 30-month follow up case report.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 · 2025Article
- Three types of ligamentum flavum resections for the treatment of lumbar central canal stenosis: BUTTERFLY retrospective study.Asian spine journal · 2025Article
- Article
- Endoscopic surgery for multilevel spinal stenosis: a comprehensive meta-analysis and subgroup analysis of uniportal and biportal approaches.Asian spine journal · 2025Article
- Clinical efficacy of one-hole split endoscopy vs. unilateral biportal endoscopy for the treatment of single-segment lumbar spinal stenosis: a retrospective study with 2-year follow-up.Frontiers in surgery · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
STUDY
designSystematic review and meta-analysis.
objectivesLumbar spinal stenosis (LSS) treatment has evolved with the introduction of minimally invasive surgery (MIS) techniques. Endoscopic methods take the concepts applied to MIS a step further, with multiple studies showing that endoscopic techniques have outcomes that are similar to those of more traditional approaches. The aim of this study was to perform an updated meta-analysis and systematic review of studies comparing the outcomes between both available endoscopic techniques (uni and biportal) for the treatment of LSS.
methodsFollowing PRISMA guidelines, we conducted a systematic literature search and compared the randomized controlled trials and retrospective studies of uniportal and biportal endoscopy in the treatment of LSS from several databases. Bias was assessed using quality assessment criteria and funnel plots. Meta-analysis using a random-effects model was used to synthesize the metadata. The authors used Review Manager 5.4 to manage the date and perform the review.
resultsAfter a preliminary selection of 388 studies from electronic databases, the full inclusion criteria were applied; three studies were found to be eligible for inclusion. There were 184 patients from three unique studies. Meta-analysis of visual analog scale score for low back pain and leg pain showed no significant difference at the final follow-up (P = 0.51 and P = 0.66). ODI score after biportal surgery was lower than uniportal surgery [SMD = 0.34, 95% CI (0.04, 0.63), P = 0.02]. The mean operation time was similar in the unilateral biportal endoscopy (UBE) and uniportal groups (P = 0.53). The UBE group was associated with a shorter length of hospital stay (P = 0.05). Complications were similar in both groups (P = 0.89).
conclusionsCurrent evidence shows no significant differences in most clinical outcomes between uniportal and biportal surgery. UBE may have a better ODI score at the end of the follow-up compared to uniportal. Further studies are required before drawing a definite conclusion. STUDY REGISTRATION: PROSPERO prospective register of systematic reviews: Registration Nº. CRD42022339078, Available from: https://www.crd.york.ac.uk/prospero/displayrecord.php?ID=CRD42022339078.
Indexed as
Identifiers
36991184What OpenQuestion holds
Registered trials
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.