Evidence map›Paper›PMID 41543744›Full record

SynthesisHernia : the journal of hernias and abdominal wall surgery2026

Is mesh fixation necessary in open retromuscular ventral hernia repair? A meta-analysis.

Claudia Theis, Neophytos Christodoulou, Victor Andrade Nunes, Augusto Graziani E Sousa, Sergio Mazzola Poli de Figueiredo

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Hernia : the journal of hernias and abdominal wall surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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

1 citing paper in PubMed.

  1. 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

5 authors.

Claudia TheisDepartment of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA. claudia_theis@med.unc.edu.ORCID http://orcid.org/0000-0002-1303-298X
Neophytos ChristodoulouPerelman School of Medicine of the University of Pennsylvania, Philadelphia, PA, USA.ORCID http://orcid.org/0000-0002-5425-8686
Victor Andrade NunesDepartment of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.ORCID http://orcid.org/0000-0002-9496-8746
Augusto Graziani E SousaCentro Universitario de Anapolis, Anapolis, Brazil.ORCID http://orcid.org/0009-0006-2838-1978
Sergio Mazzola Poli de FigueiredoDepartment of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.ORCID http://orcid.org/0000-0003-2986-8164

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeRetromuscular ventral hernia repair (RVHR) is a well-established and increasingly popular technique for mesh placement, offering favorable recurrence and complication rates. However, the role of mesh fixation in RVHR remains unclear, as some have questioned its effect on reducing recurrence and could potentially increase postoperative morbidity. We performed a systematic review and meta-analysis to compare outcomes of RVHR with and without mesh fixation. METHODOLOGY: PubMed, EMBASE, and Cochrane Library were searched through July 2025. Eligible studies included adult patients undergoing open RVHR with or without fixation. Primary outcomes were hernia recurrence and postoperative pain; secondary outcomes included hematoma, seroma, surgical site infection (SSI), reoperation, operative time, length of stay (LOS), and quality of life. Risk of bias was assessed using RoB 2 and ROBINS-I. Random-effects models were used, and heterogeneity was quantified using the I2 statistic.

resultsSix studies (15,106 patients; 3,994 without fixation) met inclusion criteria: two randomized controlled trials and four observational cohorts, including one registry study. Recurrence did not differ between fixation and non-fixation (OR 1.1, 95% CI 0.91-1.34; I2 = 0%). Fixation was associated with significantly worse quality-of-life scores (MD -12.71, 95% CI -16.48 to -8.93; p < 0.001; I2 = 0%) and higher hematoma risk (OR 5.18, 95% CI 1.18-22.68; p = 0.03; I2 = 0%). No significant differences were found for pain, SSI, seroma, reoperation, LOS, or operative time.

conclusionOur systematic review and meta-analysis identified no difference in recurrence, pain, SSI, or long-term outcomes between mesh fixation and non-fixation in RVHR. However, fixation was associated with significantly worse quality-of-life scores and a higher risk of hematoma. These findings suggest a selective rather than routine use of mesh fixation in RVHR.

Indexed as

Hernia, VentralHerniorrhaphySurgical MeshHumansPostoperative ComplicationsQuality of LifeRecurrenceReoperationMesh fixationMeta-analysisRetromuscular hernia repairVentral hernia

Identifiers

What OpenQuestion holds

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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.