Evidence map›Paper›PMID 34551931›Full record

ArticleInternational journal of spine surgery2021

Patients Undergoing 3-Level-or-Greater Decompression-Only Surgery for Lumbar Spinal Stenosis Have Similar Outcomes to Those Undergoing Single-Level Surgery at 2 Years.

Michael T Nolte, Philip K Louie, Bryce A Basques, Arya G Varthi, Justin C Paul, Krishn Khanna, Tarush Khurana, Arshan Chaudhri, Dino Samartzis, Edward J Goldberg and 1 more

Abstract read
In one paragraph

Article in International journal of spine surgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
–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

5 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. 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

11 authors.

Michael T NolteRush University Medical Center, Department of Orthopaedic Surgery, Chicago, Illinois.
Philip K LouieHospital for Special Surgery, Department of Orthopaedic Surgery, New York, New York.
Bryce A BasquesRush University Medical Center, Department of Orthopaedic Surgery, Chicago, Illinois.
Arya G VarthiYale School of Medicine, Orthopaedics, and Rehabilitation, New Haven, Connecticut.
Justin C PaulOrthoConnecticut, Danbury, Connecticut.
Krishn KhannaRush University Medical Center, Department of Orthopaedic Surgery, Chicago, Illinois.
Tarush KhuranaRush University Medical Center, Department of Orthopaedic Surgery, Chicago, Illinois.
Arshan ChaudhriRush University Medical Center, Department of Orthopaedic Surgery, Chicago, Illinois.
Dino SamartzisRush University Medical Center, Department of Orthopaedic Surgery, Chicago, Illinois.
Edward J GoldbergRush University Medical Center, Department of Orthopaedic Surgery, Chicago, Illinois.
Howard S AnRush University Medical Center, Department of Orthopaedic Surgery, Chicago, Illinois.

Funding

Yale Clinical and Translational Science Award (U Component)UL1TR001863 · NCATS · YALE UNIVERSITY · PI John H. Krystal, LUCILA OHNO-MACHADO · 2016 to 2026
$102.9M
Novel Cilia Trafficking MechanismsR01DK084725 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI MARGOLIS, BENJAMIN L · 2009 to 2010
$702k
NCATS NIH HHS UL1 TR001863NIDDK NIH HHS R01 DK084725
6 · The paper itself

Abstract

backgroundStability following multilevel decompressive laminectomy without fusion has been debated using in vitro biomechanical and radiographic models. However, there is a lack of information regarding clinical outcomes for these patients. The aim of the present study was to determine the association between clinical outcomes and number of levels decompressed via laminectomy for treatment of lumbar spinal stenosis.

methodsWe performed a retrospective cohort analysis of patients who underwent a primary lumbar laminectomy between 2009 and 2015 by senior orthopedic spine surgeons for lumbar spinal stenosis. Patients were divided into 2 groups based on the number of decompression levels: single level or 3 or more levels. Patient-reported outcomes were obtained in the form of Oswestry Disability Index (ODI) scores, visual analog scale (VAS) scores for the back and leg, 12-Item Short Form Mental and Physical Survey scores, and Veterans Rand 12-Item Health Mental and Physical Survey scores.

resultsOverall, 138 consecutive patients were assessed, of which 106 underwent a single-level and 32 underwent a 3-or-more-level laminectomy. Average follow-up was 24.2 months. There were no significant differences in the preoperative VAS back, VAS leg, or ODI scores between the single-level laminectomy and 3-or-more-level laminectomy groups. Both groups of patients experienced significant improvements in these clinical outcomes postoperatively with no clinically significant difference in the degree of improvement. Reoperation rates were low and similar between the 2 groups.

conclusionsPatients undergoing decompression of 3 or more levels present with similar postoperative outcomes to those who undergo a single-level decompression for lumbar spinal stenosis. Under specific clinical and radiographic criteria, a multilevel decompression of 3 or more levels may be a safe and effective procedure with acceptable outcomes at 2 years after surgery. LEVEL OF EVIDENCE: 3.

Indexed as

decompression-only laminectomylumbar spinal stenosismultilevel laminectomy without fusionstability-preserving laminectomy

Identifiers

PMID34551931
PMCPMC8651207

What OpenQuestion holds

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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.