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Updated: Aug 5, 2026
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Percutaneous Endoscopic Unilateral-Approach Bilateral Decompression for Lumbar Spinal Stenosis
Published on: February 9, 2024
Clinical and Functional Outcomes of Delta Large-Channel Endoscopic Lumbar Decompression: A Systematic Review and
Rishi Jain1, Nikhil Sriram1, Mehul Mittal1
1Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.
Brain Sciences
|July 28, 2026
Summary
Delta large-channel endoscopy shows comparable outcomes to traditional methods for lumbar degenerative disease, with potential benefits like shorter hospital stays. However, evidence is limited, necessitating further research for definitive conclusions.
Area of Science:
- Spinal Surgery
- Minimally Invasive Procedures
- Degenerative Lumbar Disease
Background:
- Delta large-channel endoscopy is an emerging minimally invasive technique for lumbar degenerative disease.
- Comparative effectiveness and perioperative performance data require comprehensive synthesis.
- This study evaluates Delta large-channel endoscopy against established decompression techniques.
Purpose of the Study:
- To systematically review and meta-analyze clinical, functional, and safety outcomes of Delta large-channel endoscopy.
- To compare Delta large-channel endoscopy with microscopic, endoscopic, and open decompression techniques.
Main Methods:
- Systematic review and random-effects meta-analysis of peer-reviewed English-language studies.
- Searched PubMed, Embase, and Scopus databases up to July 2025 (PROSPERO #CRD420251107750).
- Included 9 studies (737 patients: 379 Delta, 358 comparator) with outcomes assessed 1 week to 12 months postoperatively.
Main Results:
- Delta large-channel endoscopy demonstrated comparable operative time, blood loss, and complication rates to comparator techniques.
- Shorter hospital stays were observed with Delta procedures (MD, -1.69 days; p=0.0122).
- Marginally greater improvement in low back pain was noted, though clinically insignificant (MD, 0.28; p=0.0002).
Conclusions:
- Delta large-channel endoscopy may offer comparable clinical and functional outcomes with similar safety profiles.
- Potential perioperative benefits include shorter hospitalization, but evidence is of low certainty and high heterogeneity.
- Further multicenter studies with longer follow-up and higher methodological quality are needed for definitive conclusions.