Evidence map›Paper›PMID 32195421›Full record

ArticleJournal of spine surgery (Hong Kong)2020

Patient selection protocols for endoscopic transforaminal, interlaminar, and translaminar decompression of lumbar spinal stenosis.

Álvaro Dowling, Kai-Uwe Lewandrowski, Fabio Henrique Pinto da Silva, Jaime Andrés Araneda Parra, Daniela Molero Portillo, Yohanna Carolina Pineda Giménez

Open access · diamondAbstract read
In one paragraph

Article in Journal of spine surgery (Hong Kong), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
3.5field-weighted citation impact, top 7% of its field
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

21 citing papers in PubMed, 31 citations in OpenAlex.

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  2. Journal of spine surgery (Hong Kong) · 2025
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  7. [Research progress of different minimally invasive spinal decompression in lumbar spinal stenosis].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2023
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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

6 authors at 2 institutions in 3 countries.

Álvaro DowlingDepartment of Spine Surgery, Endoscopic Spine Clinic, Santiago, Chile.
Kai-Uwe LewandrowskiCenter for Advanced Spine Care of Southern Arizona and Surgical Institute of Tucson, Tucson AZ, USA.
Fabio Henrique Pinto da SilvaDepartment of Orthopaedics, Marcilio Dias Navy Hospital, Rio de Janeiro, Brazil.
Jaime Andrés Araneda ParraDepartment of Orthopaedics, DWS Spine Clinic Center Santiago and Roberto Del Rio Hospital, Santiago, Chile.
Daniela Molero PortilloDepartment of Orthopaedics, DWS Spine Clinic Center Santiago, Santiago, Chile.
Yohanna Carolina Pineda GiménezDepartment of Orthopaedics, DWS Spine Clinic Center Santiago, Santiago, Chile.
Hospital Roberto del Rio · CLUniversidade Federal do Estado do Rio de Janeiro · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe indications of different endoscopic and endoscopically assisted translaminar approaches for lumbar spinal stenosis are not well-defined, and validated protocols for the use of the transforaminal over the interlaminar approach are lacking.

methodsWe performed a retrospective study employing an image-based patient stratification protocol of stenosis location (type I-central canal, type II-lateral recess, type III-foraminal, type IV-extraforaminal) and clinical outcomes on 249 patients consisting of 137 (55%) men and 112 (45%) women with an average age of 56.03±16.8 years who underwent endoscopic surgery for symptomatic spinal stenosis from January 2013 to February 2019. The average follow-up of 38.27±27.9 months. The primary clinical outcome measures were the Oswestry Disability Index (ODI), Visual Analogue Scale (VAS), and modified Macnab criteria.

resultsThe frequency of stenosis configuration in decreasing order was as follows: type I-121/249; 48.6%, type III-104/249; 41.8%, type II-15/249; 6%, and type IV-9/249; 3.6%. The transforaminal approach (137/249; 55.0%) was used in most type II to IV lesions followed by the interlaminar approach (78/249; 31.3%), and the full endoscopic approach (12/249; 4.8%), and the endoscopically assisted translaminar approach (8/249; 3.2%) which was exclusively used for type I lesions. Macnab outcomes analysis showed Excellent in 47 patients (18.9%), Good in 178 (71.5%), Fair in 18 (7.2%) and Poor in 6 (2.4%), respectively. Paired two-tailed

conclusionsThis study suggests that in the hands of skilled endoscopic spines surgeon use of an image-based stenosis location protocol may contribute to obtaining

Indexed as

Endoscopic decompressionpatient selection algorithspinal stenosis

Identifiers

PMID32195421
PMCPMC7063319
OpenAlexW2993754457

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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.