Evidence map›Paper›PMID 31484233›Full record

ArticleJournal of Korean Neurosurgical Society2019

Risk Factors of Secondary Lumbar Discectomy of a Herniated Lumbar Disc after Lumbar Discectomy.

Joo Yul Beack, Hyoung Joon Chun, Koang Hum Bak, Kyu-Sun Choi, In-Suk Bae, Kee D Kim

Open access · goldAbstract read
In one paragraph

Article in Journal of Korean Neurosurgical Society, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.2field-weighted citation impact, top 21% 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

10 citing papers in PubMed, 20 citations in OpenAlex.

  1. A retrospective study on risk factors and the development of a comprehensive recurrent score (CR Score) for recurrence after endoscopic lumbar discectomy.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
  2. Increased Odds of Perioperative Complications Following Lumbar Diskectomy Among Patients With a Colostomy.Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews · 2026
    Article
  3. Risk factors for recurrent lumbar disc herniation after percutaneous endoscopic lumbar discectomy: the role of spinopelvic parameters and facet joint degeneration.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
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  7. Long-term outcome of redo discectomy for recurrent lumbar disc herniations.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
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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

6 authors at 2 institutions in 2 countries.

Joo Yul BeackDepartment of Neurosurgery, Hanyang University Medical Center, Seoul, Korea.
Hyoung Joon ChunDepartment of Neurosurgery, Hanyang University Medical Center, Seoul, Korea.
Koang Hum BakDepartment of Neurosurgery, Hanyang University Medical Center, Seoul, Korea.
Kyu-Sun ChoiDepartment of Neurosurgery, Hanyang University Medical Center, Seoul, Korea.
In-Suk BaeDepartment of Neurosurgery, Hanyang University Medical Center, Seoul, Korea.
Kee D KimDepartment of Neurological Surgery, University of California, Davis, CA, USA.
Hanyang University Medical Center · KRNeurological Surgery · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo study risk factors of secondary lumbar discectomy (LD) for recurrent herniated lumbar disc (HLD) and identify methods to lower the rate of recurrence.

methodsData from 160 patients who underwent primary LD were collected retrospectively. Demographic features, radiologic findings including Pfirrmann disc degeneration, and surgical information were analyzed to compare risks between revision and non-revision patients.

resultsThe revision rate was 15% (24 patients), and the mean follow-up was 28.3 months. HLD recurrence was not related to any demographic characteristics. Primary and secondary LD were most common at the L4-5 level, but the level of operation was not significantly associated with revision. Primary LD most commonly had a Pfirrmann disc degeneration grade of 3, followed by 4. For recurrent HLD, Pfirrmann grade 4 was most common and was statistically significant (p<0.05). A body mass index (BMI) over 30 was considered obese and was significantly related with HLD revision (p<0.05).

conclusionPatients with high BMI or severe disc degeneration should be informed of HLD revision.

Indexed as

Body mass indexDiskectomyRecurrenceReoperation

Identifiers

PMID31484233
PMCPMC6732352
OpenAlexW2970002289

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.