Evidence map›Paper›PMID 33957745›Full record

ArticleAsian spine journal2022

Postoperative Epidural Fibrosis Prevention: Which Is Better-Autologous Fat versus Gelfoam.

Karan Rajpal, Jagdeep Singh, Raj Bahadur, Kapil Bansal, Radhe Shyam, Kavin Khatri

Open access · diamondAbstract read
In one paragraph

Article in Asian spine journal, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.9field-weighted citation impact, top 28% 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

6 citing papers in PubMed, 12 citations in OpenAlex.

  1. Article
  2. Ligamentum flavum preservation via unilateral biportal endoscopy in lumbar discectomy: a "Door-Opening" technique and its clinical outcomes.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
  3. Protection of the ligamentum flavum reduces epidural fibrosis formation in 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 · 2025
    Article
  4. Article
  5. Article
  6. Review
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 1 institution in 1 country.

Karan RajpalDepartment of Orthopaedics, Guru Gobind Singh Medical College and Hospital, Faridkot, India.
Jagdeep SinghDepartment of Orthopaedics, Guru Gobind Singh Medical College and Hospital, Faridkot, India.
Raj BahadurDepartment of Orthopaedics, Guru Gobind Singh Medical College and Hospital, Faridkot, India.
Kapil BansalDepartment of Orthopaedics, Guru Gobind Singh Medical College and Hospital, Faridkot, India.
Radhe ShyamDepartment of Orthopaedics, Guru Gobind Singh Medical College and Hospital, Faridkot, India.
Kavin KhatriDepartment of Orthopaedics, Guru Gobind Singh Medical College and Hospital, Faridkot, India.
Guru Gobind Singh Medical College and Hospital · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

designProspective, randomized study of 100 patients with prolapsed intervertebral disc with an average of 12- to 18-month follow-up postoperatively. PURPOSE: To compare the role of Gelfoam and autologous fat in the prevention of postoperative epidural fibrosis (EF) after lumbar spine surgery. OVERVIEW OF LITERATURE: EF is a possible sequelae of lumbar disc surgery. Different treatments and surgical strategies have been attempted to prevent postoperative fibrosis without providing consistent long-term results.

methodsThe study was conducted on 100 adult patients. The patients were randomly allocated into two groups of 50 patients each: group A, autologous fat group, and group B, Gelfoam group. The postoperative follow-up was conducted at intervals of 6 weeks, 3 months, 6 months, and 12 months. Both groups were evaluated clinically (Oswestry Low Back Pain Disability Questionnaire [ODI], Visual Analog Scale [VAS], Straight Leg Raising Test [SLRT]) and radiologically (using Ross grading by contrast magnetic resonance imaging [MRI]) for development of radicular pain and hence EF.

resultsBased on the analysis, improvement in mean values of ODI score, VAS score, and SLRT were found to be statistically significant postoperatively at intervals of 6 weeks, 3 months, 6 months, and 12 months when compared individually in both groups. However, improvement was greater in the autologous fat group than in the Gelfoam group. Based on contrast-enhanced MRI, the number of patients who developed EF was smaller in the autologous fat group than in the Gelfoam group.

conclusionsIn the present study, on clinical and radiological assessment, we conclude that both groups prevent radicular pain and postoperative EF individually but relatively autologous fat was found to be more effective than Gelfoam in the prevention of EF and hence radicular pain.

Indexed as

Autologous fatEpidural fibrosisFailed back surgery syndromeGelfoamRadiculopathy

Identifiers

PMID33957745
PMCPMC9260396
OpenAlexW3157710515

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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.