Evidence map›Paper›PMID 42377434›Full record

ArticleSurgery today2026

Status of groin hernia repair in Japan: analysis of the 2024 annual report from the National Clinical Database.

Tatsuya Tazaki, Hiroyuki Yamamoto, Masanori Sato, Saseem Poudel, Taketo Matsubara, Itsuro Nagae, Tsuyoshi Takagi, Ken Shirabe, Hideki Ueno, Takehiro Hachisuka and 1 more

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Article in Surgery today, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

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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

11 authors.

Tatsuya TazakiHernia Registry Committee, The Japanese Hernia Society, Tokyo, Japan.
Hiroyuki YamamotoDepartment of Health Data Science, Tohoku University Graduate School of Medicine, Sendai, Japan.
Masanori SatoHernia Registry Committee, The Japanese Hernia Society, Tokyo, Japan.
Saseem PoudelHernia Registry Committee, The Japanese Hernia Society, Tokyo, Japan.
Taketo MatsubaraHernia Registry Committee, The Japanese Hernia Society, Tokyo, Japan.
Itsuro NagaeHernia Registry Committee, The Japanese Hernia Society, Tokyo, Japan.
Tsuyoshi TakagiHernia Registry Committee, The Japanese Hernia Society, Tokyo, Japan.
Ken ShirabeThe Japanese Society of Gastroenterological Surgery, Tokyo, Japan.
Hideki UenoDatabase Committee, The Japanese Society of Gastroenterological Surgery, Tokyo, Japan.
Takehiro HachisukaHernia Registry Committee, The Japanese Hernia Society, Tokyo, Japan.
Kyosuke MiyazakiHernia Registry Committee, The Japanese Hernia Society, Tokyo, Japan. kyosukemiyazaki1@me.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo analyze the data on groin hernia repair practice in Japan in 2024 and present the recent changes in open repair technique selection.

methodsWe performed a retrospective descriptive analysis of groin hernia repairs registered in the National Clinical Database (NCD) of Japan in 2024, using nationwide data and a Japanese Hernia Society-registered subset with detailed procedure variables for 2021-2024.

resultsIn the nationwide dataset, inguinal laparo-endoscopic and open repairs accounted for 58.2% and 38.2% of all groin hernia repairs, respectively. Among open repairs in the Japanese Hernia Society-registered dataset, underlay mesh repair was the most common subtype of primary repair until 2023, but decreased over time. The proportion of anterior onlay mesh repairs increased from 21.8% in 2021 to 32.0% in 2024, while the proportion of plug-and-patch repairs remained stable at approximately 24%. For recurrent open repairs, plug-and-patch repair remained the most common subtype, accounting for approximately 37%-39%, whereas underlay mesh repair decreased from 28.4% in 2021 to 21.0% in 2024, and anterior onlay mesh repair increased from 17.7% in 2021 to 26.0% in 2024.

conclusionsOpen groin hernia repair remains common in Japan, and its composition is shifting toward the use of anterior onlay mesh repair, although plug-and-patch and underlay mesh repairs are still performed widely.

Indexed as

Databases, FactualHernia, InguinalHerniorrhaphyHumansJapanLaparoscopyRetrospective StudiesSurgical MeshTime FactorsGroin herniaLichtenstein repairNational Clinical DatabaseOpen repairPreperitoneal repair

Identifiers

PMID42377434

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Registered trials

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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.