Evidence map›Paper›PMID 31431869›Full record

ArticleGlobal spine journal2019

Clinical Presentation and Outcomes of Patients With a Lumbar Far Lateral Herniated Nucleus Pulposus as Compared to Those With a Central or Paracentral Herniation.

Jannat M Khan, Dennis McKinney, Bryce A Basques, Philip K Louie, Deven Carroll, Justin Paul, Arya Varthi, Sravisht Iyer, Howard S An

Open access · goldAbstract read
In one paragraph

Article in Global spine journal, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.0field-weighted citation impact, top 24% 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

15 citing papers in PubMed, 28 citations in OpenAlex.

  1. Article
  2. Article
  3. Comparison of the efficacy of arthroscopic-assisted uni-portal spinal surgery and percutaneous endoscopic lumbar discectomy in the treatment of far lateral lumbar disc herniation: a retrospective controlled study.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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  6. Review
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  9. Minimally invasive far lateral tubular microdiscectomy: surgical technique and case series of 176 patients.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
  10. Article
  11. Practical answers to frequently asked questions in minimally invasive lumbar spine surgery.The spine journal : official journal of the North American Spine Society · 2023
    Review
  12. Article
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  15. 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

9 authors at 3 institutions in 1 country.

Jannat M KhanRush University Medical Center, Chicago, IL, USA.
Dennis McKinneyRush University Medical Center, Chicago, IL, USA.
Bryce A BasquesRush University Medical Center, Chicago, IL, USA.
Philip K LouieRush University Medical Center, Chicago, IL, USA.
Deven CarrollRush University Medical Center, Chicago, IL, USA.
Justin PaulOrthoConnecticut, Danbury, CT, USA.
Arya VarthiYale School of Medicine, New Haven, CT, USA.
Sravisht IyerRush University Medical Center, Chicago, IL, USA.
Howard S AnRush University Medical Center, Chicago, IL, USA.
Rush University Medical Center · USDanbury Hospital · USYale University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

designRetrospective cohort study.

objectivesExamine pre- and postoperative outcomes between patients presenting with a central/paracentral versus a far lateral herniated nucleus pulposus (HNP) and assess whether significantly worse postoperative outcomes, assessed via patient self-reported survey, are associated with far lateral disc herniations.

methodsWe performed a retrospective cohort analysis of patients who underwent primary lumbar decompression between January 2008 and December 2015. Groups were divided based on herniation type, central/paracentral or far lateral. Patients with 3 months, or longer, of follow-up were included. Variables analyzed included demographics, American Society of Anesthesiologists (ASA) Score, Charleston Comorbidity Index (CCI), Oswestry Disability Index (ODI) scores, Visual Analog Scales (VAS) scores for the back and leg, 12-Item Short Form Mental and Physical Survey (SF-12) scores, and Veterans RAND 12-Item Mental and Physical Survey (VR-12) scores.

resultsA total of 100 patients met the inclusion criteria. Postoperative ODI scores for central/paracentral HNP were significantly lower compared to far lateral HNP. Patients with a far lateral disc herniation presented with significantly lower preoperative SF-12 and VR-12 scores. The improvement in ODI score from preoperative to final was significantly lower in the patients presenting with a far lateral HNP.

conclusionsAlthough patients with far lateral HNP present with worse preoperative outcome scores, they can expect similar symptom improvement to central or paracentral herniations following discectomy. This information can be used for future surgeons when weighing conservative versus surgical treatment of far lateral herniations.

Indexed as

centralfar lateralherniated disclumbarnucleus pulposusparacentral

Identifiers

PMID31431869
PMCPMC6686375
OpenAlexW2900787314

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.