Evidence map›Paper›PMID 29614071›Full record

ArticlePloS one2018

Annual trends in arthroscopic meniscus surgery: Analysis of a national database in Japan.

Manabu Kawata, Yusuke Sasabuchi, Shuji Taketomi, Hiroshi Inui, Hiroki Matsui, Kiyohide Fushimi, Hirotaka Chikuda, Hideo Yasunaga, Sakae Tanaka

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
3.3field-weighted citation impact, top 8% 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

16 citing papers in PubMed, 28 citations in OpenAlex.

  1. Review
  2. Article
  3. Annual trends in arthroscopic meniscal surgery in Japan: 10-year analysis from 2014 to 2023.Asia-Pacific journal of sports medicine, arthroscopy, rehabilitation and technology · 2026
    Article
  4. The 'Save the Meniscus' philosophy and the 'Iceberg' concept.Journal of experimental orthopaedics · 2025
    Article
  5. Review
  6. Halving of the meniscectomy rate and their costs in Italy: A 15-years period analysis.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025
    Article
  7. Insufficient restoration of meniscal extrusion by transtibial pullout repair for medial meniscus posterior root tears.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023
    Article
  8. Article
  9. Article
  10. Review
  11. No decrease in incidence of arthroscopic meniscectomy in a Canadian province.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. National Trends of Meniscectomy and Meniscus Repair in Korea.Journal of Korean medical science · 2019
    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

9 authors at 3 institutions in 1 country.

Manabu KawataDepartment of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
Yusuke SasabuchiDepartment of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
Shuji TaketomiDepartment of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.ORCID 0000-0002-4994-2504
Hiroshi InuiDepartment of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
Hiroki MatsuiDepartment of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
Kiyohide FushimiDepartment of Health Informatics and Policy, Graduate School of Medicine, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan.
Hirotaka ChikudaDepartment of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.
Hideo YasunagaDepartment of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
Sakae TanakaDepartment of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
The University of Tokyo · JPGunma University · JPTokyo Medical and Dental University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe importance of meniscus preservation is widely recognized. There have been a few studies describing trends in meniscectomy and meniscus repair in the United States; however, they presented differing results. We reported annual trends in meniscus surgery, using a national database in Japan.

methodsWe interrogated the Diagnosis Procedure Combination database, which represents approximately half of all hospital admissions in Japan. We included the patients who underwent meniscectomy and meniscus repair between July 2007 and March 2015. The diagnosis, age and sex of each patient were recorded.

resultsWe identified 83,105 patients: 69,310 underwent meniscectomy; 13,416 underwent meniscus repair and 379 underwent both in a single admission. The proportion of patients undergoing meniscus repair rose from 7.0% in 2007 to 25.9% in 2014 (p < 0.001), while the proportion undergoing meniscectomy fell from 92.8% in 2007 to 73.3% in 2014 (p < 0.001). Among patients under 30 years old, the proportions undergoing meniscus repair or meniscectomy in 2014 were 50.3% versus 48.3%, respectively. A bimodal age distribution was observed for meniscectomy, with peaks at 10-19 years of age and 60-69 years of age, whereas most patients undergoing meniscus repair were 10-19 years of age.

conclusionsWe found characteristic trends where the popularity of meniscus repair increased rapidly at the expense of meniscectomy in Japan during the study period. In the last survey year, the proportion of meniscus repair exceeded that of meniscectomy in those younger than 30 years. Meniscectomy was undertaken most often in adolescents and early old age, while meniscus repair was undertaken most often in adolescents.

Indexed as

AdolescentAdultAgedAged, 80 and overArthroscopyChildChild, PreschoolDatabases, FactualFemaleHumansJapanMaleMeniscectomyMeniscusMiddle AgedYoung Adult

Identifiers

PMID29614071
PMCPMC5882132
OpenAlexW2796402490

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.