Evidence map›Paper›PMID 40836585›Full record

ArticleOrthopaedic surgery2025

Efficacy and Safety of Unilateral Interlaminar Endoscopic Decompression for Lumbar Spinal Stenosis: A Retrospective Study of 176 Cases With a 3-6 Year Follow-Up.

Zhifa Zhang, Zhiyong Yin, Rongqiang Bu, Xiangyu Wang, Benzhang Tao, Leiming Zhang, Xifeng Zhang, Jianning Zhang

Abstract read
In one paragraph

Article in Orthopaedic surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

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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

3 citing papers in PubMed.

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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

8 authors.

Zhifa ZhangDepartment of Neurosurgery, First Medical Center of PLA General Hospital, Beijing, China.ORCID https://orcid.org/0000-0001-5216-1496
Zhiyong YinDepartment of Neurosurgery, PLA General Hospital, Beijing, China.
Rongqiang BuDepartment of Spine, Beijing Aiyuhua Hospital, Beijing, China.
Xiangyu WangDepartment of Neurosurgery, First Medical Center of PLA General Hospital, Beijing, China.
Benzhang TaoDepartment of Neurosurgery, First Medical Center of PLA General Hospital, Beijing, China.
Leiming ZhangDepartment of Pain, First Medical Center of PLA General Hospital, Beijing, China.
Xifeng ZhangDepartment of Orthopedics, First Medical Center of PLA General Hospital, Beijing, China.
Jianning ZhangDepartment of Neurosurgery, First Medical Center of PLA General Hospital, Beijing, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveSpinal endoscopic surgery is widely acknowledged as an effective and minimally invasive approach for treating lumbar disc herniation. Comprehensive descriptions of the endoscopic decompression technique for lumbar spinal stenosis (LSS) are limited in existing literature. With a focus on long-term follow-up outcomes, this study investigates the safety and efficacy of endoscopic decompression using a unilateral interlaminar approach.

methodsBetween August 1, 2018, and December 1, 2020, a total of 316 consecutive cases underwent endoscopic decompression for LSS following conservative treatment. Based on specific selection criteria, 176 of these cases were retrospectively included in this study. The minimally invasive decompression was performed using a percutaneous uniportal and lateral interlaminar endoscopic approach under local anesthesia. This endoscopic procedure involved comprehensive decompression of the central canal and unilateral recess, addressing the lamina, hypertrophic ligamentum flavum (LF), and medial osteophytes of the facet joint. Clinical outcomes were assessed using the single continuous walking distance (SCWD) without pain, the modified MacNab criteria, the Oswestry Disability Index (ODI), and the visual analogue scale (VAS). Radiographic changes, both preoperative and postoperative, were documented and analyzed. This analysis included evaluating the stability of the lumbar spine through lumbar hyper-flexion and hyper-extension X-rays, as well as determining the lumbar canal cross-sectional area (CCA) using CT scans.

resultsThe mean follow-up period was 47.4 ± 7.1 months. The average operative duration was 65.3 ± 12.6 min, and the mean estimated blood loss was 10.4 ± 8.5 mL. The average length of postoperative hospital stay was 2.2 ± 1.3 days. There was a significant improvement in SCWD without pain (p < 0.05). Postoperatively, the ODI and VAS scores for both back and leg pain showed significant reductions (p < 0.05). Based on the modified MacNab criteria, the overall rate of good-to-excellent outcomes was 95.45%. The CCA increased significantly from 52.0 ± 11.0 to 122.5 ± 12.1 mm

conclusionsThe unilateral interlaminar approach for bilateral endoscopic decompression in the treatment of LSS demonstrated both safety and efficacy, as evidenced by clinical and radiographic outcomes.

Indexed as

Decompression, SurgicalEndoscopyLumbar VertebraeSpinal StenosisAdultAgedFemaleFollow-Up StudiesHumansMaleMiddle AgedRetrospective StudiesTreatment Outcomeendoscopic decompression without fusion or fixationlumbar spinal stenosisspinal endoscopic surgeryunilateral interlaminar approach

Identifiers

PMID40836585
PMCPMC12497534

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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.