ArticleAsian spine journal2019
Biportal Endoscopic Spinal Surgery for Lumbar Spinal Stenosis.
Article in Asian spine journal, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 95 papers, 4 of them syntheses 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
95 citing papers in PubMed, 4 syntheses or guidelines pooled it.
- Learning curve insights in Unilateral Biportal Endoscopic (UBE) spinal procedures: proficiency cutoffs and the impact on efficiency and complications.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 · 2025Pooled it
- Unilateral Endoscopic and Unilateral Biportal Endoscopic surgery for lumbar spinal stenosis: a systematic review and meta-analysis.Frontiers in surgery · 2025Pooled it
- Is Biportal Endoscopic Spine Surgery More Advantageous Than Uniportal for the Treatment of Lumbar Degenerative Disease? A Meta-Analysis.Medicina (Kaunas, Lithuania) · 2022Pooled it
- Clinical Efficacy and Safety of Percutaneous Spinal Endoscopy versus Traditional Open Surgery for Lumbar Disc Herniation: Systematic Review and Meta-Analysis.Journal of healthcare engineering · 2022Pooled it
- Evolution of Endoscopic Spine Surgery: Contemporary Advances and Future Directions.Current reviews in musculoskeletal medicine · 2026Review
- Effect of irrigation fluid temperature on perioperative hypothermia and metabolic acidosis during unilateral 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
- Article
- Impact of mentorship on the learning curve of unilateral biportal endoscopic unilateral laminotomy for bilateral decompression in lumbar spinal stenosis: a cumulative sum analysis across 2 generations of surgeons.Wideochirurgia i inne techniki maloinwazyjne = Videosurgery and other miniinvasive techniques · 2026Article
- Article
- A comparative study of the far lateral approach of uni-portal non-coaxial spinal endoscopic surgery versus percutaneous endoscopic transforaminal discectomy (PETD) for L5/S1 foraminal stenosis with high iliac crest: a retrospective cohort study.International orthopaedics · 2026Article
- Comparison between large interbody cage versus two smaller interbody cages in unilateral biportal endoscopic transforaminal interbody fusion.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
- Review
- Unilateral biportal endoscopy (UBE) spine surgery for thoracolumbar intervertebral disc diseases in dogs: An ex vivo cadaveric and in vivo preclinical study.Veterinary surgery : VS · 2026Article
- Breaking Barriers in Spine Surgery: Unilateral Biportal Endoscopy as a Trailblazer from Decompression to Fusion.Journal of orthopaedic case reports · 2026Article
- Article
- Biportal Endoscopic Spine Surgery: Evolution of Techniques, Indications, and Influential Literature.Journal of clinical medicine · 2026Review
- Ocular Safety of Unilateral Biportal Endoscopic Spinal Surgery: An Optical Coherence Tomography Angiography-Based Analysis.Journal of clinical medicine · 2026Article
- Lumbar spinal stenosis: current concept of management.Asian spine journal · 2026Article
- Anatomical Validation and Technical Feasibility of Biportal Endoscopic Spinal Surgery Including Technical Notes in a Cadaveric Canine Thoracic Intervertebral Disc Disease Model.Animals : an open access journal from MDPI · 2026Article
- Outcomes of Unilateral Biportal Endoscopic Surgery for Prolapsed Intervertebral Disc: A Single-center Study.Journal of orthopaedic case reports · 2026Article
35 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Biportal endoscopic spinal surgery (BESS) is a minimally invasive spinal surgery, which is basically similar to microscopic spinal surgery in terms of the use of floating technique and technically similar to conventional percutaneous endoscopic spinal surgery in terms of the use of endoscopic or arthroscopic instruments. Using two independent portals (viewing and working) and maintaining a certain distance from the bony and neural structures allow closer access to the target lesion through a panoramic view by free handling of the scope and instruments rather than through a fixed view by docking into the Kambin's triangle. Minimally invasive surgery allows for reduced dissection and inevitable muscle injury, preserving stability and reducing risks of restabilization. The purpose of fusion surgery is the same as that of the three surgical techniques stated above. Its wider range of view helps to overcome limitations of conventional endoscopic spinal surgery and to supplement the weak points of microscopic spinal surgery, such as limited working space in a tubular retractor and difficulty in accessing the contralateral area. This technique provides an alternative to unilateral or bilateral decompression of lumbar central spinal stenosis, foraminal stenosis, low-grade spondylolisthesis, and adjacent segment degeneration. Early clinical outcomes are promising despite potential for complications, such as dural tearing and postoperative epidural hematoma, similar to other procedures. Merits of BESS include decreased postoperative infection rate due to continuous irrigation throughout the procedure and decreased need for fusion surgery for one- or two-level lumbar stenosis by wide sublaminar and foraminal decompression with minimal sacrifice of stabilizing structures.
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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.