Evidence map›Paper›PMID 36273136›Full record

ArticleBMC musculoskeletal disorders2022

A study comparing outcomes between obese and nonobese patients with lumbar disc herniation undergoing surgery: a study of the Swedish National Quality Registry of 9979 patients.

Niyaz Hareni, Fredrik Strömqvist, Björn E Rosengren, Magnus K Karlsson

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in BMC musculoskeletal disorders, 2022. 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
1.5field-weighted citation impact, top 18% 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

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 11 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Factors associated with incomplete clinical improvement in patients undergoing transforaminal endoscopic lumbar discectomy for lumbar disc herniation.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 · 2023
    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

4 authors at 1 institution in 1 country.

Niyaz HareniDepartments Clinical Sciences and Orthopedics, Lund University, Skåne University Hospital, Inga Marie Nilssons gata 22, plan 4, 205 02, Malmö, Sweden. niyaz.hareni@med.lu.se.ORCID http://orcid.org/0000-0001-8626-3909
Fredrik StrömqvistDepartments Clinical Sciences and Orthopedics, Lund University, Skåne University Hospital, Inga Marie Nilssons gata 22, plan 4, 205 02, Malmö, Sweden.
Björn E RosengrenDepartments Clinical Sciences and Orthopedics, Lund University, Skåne University Hospital, Inga Marie Nilssons gata 22, plan 4, 205 02, Malmö, Sweden.
Magnus K KarlssonDepartments Clinical Sciences and Orthopedics, Lund University, Skåne University Hospital, Inga Marie Nilssons gata 22, plan 4, 205 02, Malmö, Sweden.
Lund University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThis study aimed to evaluate whether an increasing grade of obesity is associated with inferior outcomes after lumbar disc herniation (LDH) surgery.

methodsWe retrieved data from the Swedish register for spine surgery regarding patients aged 20-64 who underwent LDH surgery from 2006-2016 and had preoperative and one-year postoperative data. A total of 4156 patients were normal weight, 4063 were overweight, 1384 had class I obesity, 317 had class II obesity and 59 had class III obesity ("morbid obesity"). Data included patient satisfaction, improvement in leg pain (assessed using the National Rating Scale; NRS; rating 0-10), disability (assessed using the Oswestry Disability Index; ODI; rating 0-100) and complications.

resultsAt one year postsurgery, 80% of normal-weight patients, 77% of overweight patients and 74% of obese patients (class I-III evaluated together) were satisfied (p < 0.001) [75%, 71%, 75% in obesity classes I, II, and III, respectively (p = 0.43)]. On average, all groups improved by more than the minimal clinically important difference (MCID) in both NRS leg pain (> 3.5) and ODI (> 20). NRS leg pain improved by 4.8 in normal weight patients (95% CI 4.7-4.9), by 4.5 in overweight patients (4.5-4.6) and by 4.3 in obese patients (4.2-4.4) (p < 0.001) [4.4 (4.3-4.6), 3.8 (3.5-4.1) and 4.6 (3.9-5.3) in obesity classes I, II, and III, respectively (p < 0.001)]. The ODI improved by 30 in normal weight patients (30-31), by 29 in overweight patients (28-29) and by 26 in obese patients (25-27) (p < 0.001) [29 (28-29), 25 (22-27) and 27 (22-32) in obesity classes I, II, and III, respectively (p < 0.01)]. A total of 3.0% of normal-weight patients, 3.9% of overweight patients and 3.9% of obese patients suffered complications (p = 0.047) [3.8%, 4.4%, 3.5% in obesity classes I, II, and III, respectively (p = 0.90)].

conclusionsLDH surgery is also generally associated with favourable outcomes and few complications in patients with morbid obesity.

Indexed as

Intervertebral Disc DisplacementDisability EvaluationHumansLumbar VertebraeObesityOverweightPainPain MeasurementRegistriesSwedenTreatment OutcomeBMILumbar disc herniationObesity

Identifiers

PMID36273136
PMCPMC9587539
OpenAlexW4307136117

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.