Evidence map›Paper›PMID 33461335›Full record

ArticleGlobal spine journal2022

Lumbar Disc Herniation and Preoperative Modic Changes: A Prospective Analysis of the Clinical Outcomes After Microdiscectomy.

Dinesh Kumarasamy, Shanmuganathan Rajasekaran, Sri Vijay Anand K S, Dilip Chand Raja Soundararajan, Ajoy Prasad Shetty T, Rishi Mugesh Kanna P, B T Pushpa

Abstract read
In one paragraph

Article in Global spine journal, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

14 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Association of modic changes and postoperative surgical site infection after posterior lumbar spinal 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 · 2024
    Article
  9. Article
  10. Review
  11. Review
  12. Asymmetric distribution of Modic changes in patients with 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
  13. Article
  14. 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

7 authors.

Dinesh KumarasamyDepartment of Spine Surgery, Ganga Hospital, Coimbatore, India.
Shanmuganathan RajasekaranDepartment of Spine Surgery, Ganga Hospital, Coimbatore, India.ORCID https://orcid.org/0000-0001-6043-006X
Sri Vijay Anand K SDepartment of Spine Surgery, Ganga Hospital, Coimbatore, India.
Dilip Chand Raja SoundararajanDepartment of Spine Surgery, Ganga Hospital, Coimbatore, India.
Ajoy Prasad Shetty TDepartment of Spine Surgery, Ganga Hospital, Coimbatore, India.ORCID https://orcid.org/0000-0001-5885-7152
Rishi Mugesh Kanna PDepartment of Spine Surgery, Ganga Hospital, Coimbatore, India.ORCID https://orcid.org/0000-0001-5817-4909
B T PushpaDepartment of Radiology, Ganga Hospital, Coimbatore, India.ORCID https://orcid.org/0000-0001-8451-1729

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

designProspective comparative cohort study.

objectivesThe study aims to elucidate the relationship between Modic endplate changes and clinical outcomes after a lumbar microdiscectomy.

methodsConsecutive patients undergoing microdiscectomy for lumbar disc herniation (LDH) were prospectively studied. Pre-operative clinical and radiological parameters were recorded. The pain was assessed by Numeric pain rating scale (NPRS), and functional assessment by Oswestry Disability Index (ODI). Minimal clinically important difference (MCID) in outcome was calculated for both the groups. Complications related to surgery were studied. Follow-up was done at 6 weeks, 3 months, 6 months and 1 year. Mac Nab criteria were used to assess patient satisfaction at 1 year.

resultsOut of 309 patients, 86 had Modic changes, and 223 had no Modic changes. Both groups had similar back pain (p-value: 0.07) and functional scores (p-value: 0.85) pre-operatively. Postoperatively patients with Modic changes had poorer back pain and ODI scores in the third month, sixth month and 1 year (p-value: 0.001). However, MCID between the groups were not significant (p-value: 0.18 for back pain and 0.58 for ODI scores). Mac Nab criteria at 1 year were worse in Modic patients (p-value: 0.001). No difference was noted among Modic types in the pre-operative and postoperative pain and functional outcomes. Four patients in Modic group (4.7%) and one patient in the non-Modic group (0.5%) developed postoperative discitis (p-value: 0.009).

conclusionsPreoperative Modic changes in lumbar disc herniation is associated with less favorable back pain, functional scores and patient satisfaction in patients undergoing microdiscectomy.

Indexed as

discitisendplate changeslow back painlumbar disc herniationmicrodiscectomymodic changesoutcomes

Identifiers

PMID33461335
PMCPMC9344507

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.