Evidence map›Paper›PMID 41629728›Full record

SynthesisActa neurochirurgica2026

Complications and their prevention in unilateral biportal endoscopy: a systematic review with narrative insights and practical management algorithms.

Xavier A Santander, Martin N Stienen, Stefan Motov, Héctor U Quintanilla, Elsa González Pérez

Abstract readSystematic Review
In one paragraph

Synthesis in Acta neurochirurgica, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
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.

Xavier A SantanderInstituto Clavel, Madrid, Spain. xavier.santander@institutoclavel.com.
Martin N StienenInterdisciplinary Spine Center, Health East-Switzerland, University of St. Gallen, St. Gallen, Switzerland.
Stefan MotovInterdisciplinary Spine Center, Health East-Switzerland, University of St. Gallen, St. Gallen, Switzerland.
Héctor U QuintanillaDepartment of Orthopedics, Médica Sur, Ciudad de México, México.
Elsa González PérezDepartment of Neurosurgery, Policlínica Nuestra Señora del Rosario, Ibiza, Spain.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeUnilateral biportal endoscopy (UBE) has expanded as a minimally invasive option for spinal decompression, but complication profiles and their optimal management remain inconsistently reported. This review aimed to synthesize evidence on the incidence, prevention, and management of UBE-related complications and to propose practical management algorithms.

methodsA PRISMA-aligned search of PubMed, Scopus, Web of Science, and Ovid identified studies (2020-2025) reporting perioperative complications in UBE. Primary inclusion criteria were biportal endoscopic spinal procedures with ≥ 50 patients and extractable complication data; secondary reviews were included for contextual synthesis. Levels of evidence (Oxford CEBM) and risk of bias (Newcastle-Ottawa Scale) were assessed for primary cohorts. Crude pooled incidences were calculated from primary cohorts only; secondary literature was analyzed qualitatively.

resultsEighteen studies met inclusion criteria: eight primary UBE cohorts (3,433 lumbar cases) and ten secondary reviews. Across nine lumbar cohorts, crude pooled incidences were 2.4% for dural tear, about 2% for symptomatic epidural hematoma and lesion recurrence, 2.5% for incomplete decompression, 0.09% for surgical site infection, and 1.4% for reoperation, with higher rates early in the learning curve. Cervical and thoracic applications were sparsely reported and not suitable for pooled analysis. Algorithms were constructed for dural tear, epidural hematoma, incomplete decompression, and neural complications.

conclusionLumbar UBE decompression appears safe and reproducible in experienced hands when standardized technical strategies are applied, but the evidence base is limited by retrospective design, heterogeneity, and concentration in high-volume centers. The proposed algorithms should be regarded as evidence-informed guidance requiring prospective validation in multicenter cohorts.

Indexed as

Decompression, SurgicalEndoscopyNeuroendoscopyPostoperative ComplicationsAlgorithmsHumansAlgorithmsBiportal endoscopyComplicationsDural tearEpidural hematomaIncomplete decompressionPrevention

Identifiers

PMID41629728
PMCPMC12868076

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.