Evidence map›Paper›PMID 34351524›Full record

Observational studyEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society2021

Prediction of walking ability following posterior decompression for lumbar spinal stenosis.

Suzanne McIlroy, Feroz Jadhakhan, David Bell, Alison Rushton

Open access · hybridAbstract readObservational Study
In one paragraph

Observational study in 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. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.4field-weighted citation impact, top 20% 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

11 citing papers in PubMed, 22 citations in OpenAlex.

  1. Do postoperative changes in physical function affect patient-reported outcomes in patients with lumbar spinal stenosis undergoing rehabilitation? A secondary analysis of a randomized controlled trial.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 · 2026
    Trial
  2. Trial
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  4. Loss to follow-up after lumbar decompressive surgery: effect of collection method and perioperative factors on patient-reported outcome measures.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 · 2026
    Article
  5. Minimal clinically important difference of the 6-Minute walk test and daily step count at 3 months following surgery for lumbar spinal stenosis.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 · 2025
    Article
  6. Characterising patients undergoing surgery for lumbar spinal stenosis associated neurogenic claudication in the UK: what does the British Spinal Registry tell us?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 · 2025
    Article
  7. Patients on antidepressants are more likely to be discharged to inpatient rehabilitation after lumbar fusion.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 · 2025
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  11. Recovery of the Japanese orthopedic association back pain evaluation questionnaire score and walking ability following lumbar spinal stenosis surgery.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 · 2024
    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

4 authors at 4 institutions in 2 countries.

Suzanne McIlroyPhysiotherapy Department, King's College Hospital NHS Foundation Trust, Denmark Hill, London, SE5 9RS, UK. Suzanne.McIlroy@nhs.net.ORCID 0000-0002-1863-9473
Feroz JadhakhanCentre of Precision Rehabilitation for Spinal Pain [CPR Spine], School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, B15 2TT, UK.
David BellNeurosurgery Department, King's College Hospital NHS Foundation Trust, Denmark Hill, London, SE5 9RS, UK.
Alison RushtonCentre of Precision Rehabilitation for Spinal Pain [CPR Spine], School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, B15 2TT, UK.ORCID 0000-0001-8114-7669
King's College Hospital NHS Foundation Trust · GBKing's College London · GBUniversity of Birmingham · GBWestern University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeFollowing surgery for lumbar spinal stenosis (LSS) up to 40% of people report persistent walking disability. This study aimed to identify pre-operative factors that are predictive of walking ability post-surgery for LSS.

methodsAn observational cohort study was conducted using data from the British Spine Registry (2017-2018) of adults (≥ 50 years) with LSS, who underwent ≤ 2 level posterior lumbar decompression. Patients receiving fixation or who had previous lumbar surgery were excluded. Walking ability was assessed by a single item on the Oswestry Disability Index and dichotomised into poor/good outcome. Multivariable regression models were performed.

results14,485 patients were identified. Pre-operatively 30% patients reported poor walking ability, this decreased to 8% at 12 months follow-up. Predictors associated with poor walking ability at 12 months were: increasing age (≥ 75 years OR 1.54, 95% CI 1.07, 2.18), BMI ≥ 35 kg/m

conclusionOlder age, obesity, greater pre-operative pain and disability and lower quality of life are associated with risk of poor walking ability post-operatively. Greater pre-operative walking and higher education are associated with reduced risk of poor walking ability post-operatively. Patients should be counselled on their risk of poor outcome and considered for rehabilitation so that walking and surgical outcomes may be optimised.

Indexed as

Spinal StenosisAdultAgedDecompression, SurgicalHumansLumbar VertebraeQuality of LifeTreatment OutcomeWalkingDecompressionLumbar spinal stenosisOutcomePrognosisWalking

Identifiers

PMID34351524
PMCPMC8550110
OpenAlexW3191804356

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.