Evidence map›Paper›PMID 42402488›Full record

ReviewInternational orthopaedics2026

Trends in clinical and basic research on rotator cuff tears in Japan.

Nobuyuki Yamamoto, Eiji Itoi

Abstract readReview
In one paragraph

Review in International orthopaedics, 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. 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

2 authors.

Nobuyuki YamamotoTohoku University School of Medicine, Sendai, Japan. nobuyuki.yamamoto.b5@tohoku.ac.jp.
Eiji ItoiTohoku Rosai Hospital, Sendai, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionResearch on rotator cuff tears in Japan was initially characterized by studies clarifying prevalence, asymptomatic tears, and natural history. It subsequently developed toward evaluation of outcomes after arthroscopic repair, postoperative tendon integrity, and long-term results of conservative treatment.

methodsThis article reviews clinical and basic research on rotator cuff tears that has been conducted in Japan.

resultsRepresentative examples include arthroscopic superior capsule reconstruction (SCR), rotator cuff reconstruction combined with small-head hemiarthroplasty, arthroscopic muscle advancement, and infraspinatus rotational transfer. More recently, basic research on rotator cuff tears in Japan has shifted its focus from simply how to repair the torn tendon to how closely the tendon-bone insertion can be regenerated toward its native structure, and what biological and mechanical conditions can reduce retear. DISCUSSION &

conclusionBecause reverse total shoulder arthroplasty (rTSA) was introduced in Japan in 2014, later than in many other countries, several Japan-specific surgical techniques for massive rotator cuff tears were developed during the preceding period.

Indexed as

Biomedical ResearchRotator Cuff InjuriesArthroplasty, Replacement, ShoulderArthroscopyHumansJapanRotator CuffTendon InjuriesBasic researchClinical researchRotator cuff tearTrends in Japan

Identifiers

PMID42402488
PMCPMC13524991

What OpenQuestion holds

Textmetadata
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.