Evidence map›Paper›PMID 21681140›Full record

Trial reportSpine2012

Who should have surgery for an intervertebral disc herniation? Comparative effectiveness evidence from the spine patient outcomes research trial.

Adam Pearson, Jon Lurie, Tor Tosteson, Wenyan Zhao, William Abdu, Sohail Mirza, James Weinstein

Open access · greenAbstract readComparative StudyMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Spine, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 2 pooled it
4.0field-weighted citation impact, top 6% 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, 2 syntheses or guidelines pooled it, 48 citations in OpenAlex.

  1. Prognostic indicators of surgical outcome in painful foot drop: a systematic review and meta-analysis.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2021
    Pooled it
  2. Surgery or physical activity in the management of sciatica: a systematic review and meta-analysis.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2016
    Pooled it
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  13. Predictors of clinical outcome following lumbar disc surgery: the value of historical, physical examination, and muscle function variables.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2016
    Article
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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

7 authors at 1 institution in 1 country.

Adam PearsonDartmouth Medical School, Department of Orthopaedics, One Medical Center Dr. Lebanon, NH 03756, USA. adam.m.pearson@hitchcock.org
Jon Lurie
Tor Tosteson
Wenyan Zhao
William Abdu
Sohail Mirza
James Weinstein
Dartmouth–Hitchcock Medical Center · US

Funding

Translational Engineering in Cancer (TEC)P30CA023108 · NCI · DARTMOUTH COLLEGE · PI Steven D Leach · 1985 to 2026
$91.3M
LOW BACK PAIN--A MULTICENTER RANDOMIZED TRIALU01AR045444 · NIAMS · DARTMOUTH COLLEGE · PI WEINSTEIN, JAMES N · 1999 to 2013
$20.8M
Prognostic Value of Lumbar Spine MRIP60AR048094 · NIAMS · DARTMOUTH COLLEGE · PI ATLAS, STEVEN J · 2003 to 2007
$6.2M
NCI NIH HHS P30 CA023108NIAMS NIH HHS P60 AR048094NIAMS NIH HHS U01 AR045444
6 · The paper itself

Abstract

STUDY

designCombined prospective randomized controlled trial and observational cohort study of intervertebral disc herniation (IDH), an as-treated analysis.

objectiveTo determine modifiers of the treatment effect (TE) of surgery (the difference between surgical and nonoperative outcomes) for intervertebral disc herniation (IDH) using subgroup analysis. SUMMARY OF BACKGROUND DATA: The Spine Patient Outcomes Research Trial demonstrated a positive surgical TE for IDH at the group level. However, individual characteristics may affect TE. No prior studies have evaluated TE modifiers in IDH.

methodsIDH patients underwent either discectomy (n = 788) or nonoperative care (n = 404) and were analyzed according to treatment received. Thirty-seven baseline variables were used to define subgroups for calculating the time-weighted average TE for the Oswestry Disability Index (ODI) across 4 years (TE = ΔODI(surgery) -ΔODI(nonoperative)). Variables with significant subgroup-by-treatment interactions (P < 0.1) were simultaneously entered into a multivariate model to select independent TE predictors.

resultsAll analyzed subgroups improved significantly more with surgery than with nonoperative treatment (P < 0.05). In minimally adjusted univariate analyses, being married, absence of joint problems, worsening symptom trend at baseline, high school education or less, older age, no worker's compensation, longer duration of symptoms, and an SF-36 mental component score (MCS) less than 35 were associated with greater TEs. Multivariate analysis demonstrated that being married (TE, -15.8 vs. -7.7 single, P < 0.001), absence of joint problems (TE, -14.6 vs. -10.3 joint problems, P = 0.012), and worsening symptoms (TE, -15.9 vs. -11.8 stable symptoms, P = 0.032) were independent TE modifiers. TEs were greatest in married patients with worsening symptoms (-18.3) vs. single patients with stable symptoms (-7.8).

conclusionIDH patients who met strict inclusion criteria improved more with surgery than with nonoperative treatment, regardless of specific characteristics. However, being married, without joint problems, and worsening symptom trend at baseline were associated with a greater TE.

Indexed as

Patient SelectionAdultDisability EvaluationDiskectomyEvidence-Based MedicineHumansIntervertebral Disc DisplacementPostoperative ComplicationsProspective StudiesTreatment Outcome

Identifiers

PMID21681140
PMCPMC3472961
OpenAlexW2062299886

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.