Evidence map›Paper›PMID 35133449›Full record

ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2022

No differences in histopathological degenerative changes found in acute, trauma-related rotator cuff tears compared with chronic, nontraumatic tears.

Knut E Aagaard, Hanna Cecilia Björnsson Hallgren, Karl Lunsjö, Richard Frobell

Open access · hybridAbstract read
In one paragraph

Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
2.4field-weighted citation impact, top 12% 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

8 citing papers in PubMed, 12 citations in OpenAlex.

  1. Article
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  6. Capsular remnant in the rotator cuff footprint is a novel arthroscopic finding may indicate the etiology of the tear.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023
    Article
  7. Absorbable suture knots on the supraspinatus tendon prevent adverse effects of nonabsorbable suture knots in a rat model.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023
    Article
  8. 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

4 authors at 3 institutions in 1 country.

Knut E AagaardDepartment of Orthopaedics, Helsingborg Hospital, Region Skåne, Sweden. knut.aagaard@gmail.com.ORCID http://orcid.org/0000-0003-2528-3919
Hanna Cecilia Björnsson HallgrenDepartment of Orthopaedics in Linköping and Department of Biomedical and Clinical Sciences, Linköping University, S-58185, Linköping, Sweden.
Karl LunsjöDepartment of Orthopaedics, Helsingborg Hospital, Region Skåne, Sweden.
Richard FrobellOrthopedics, Clinical Sciences Lund, Lund University, Lund, Sweden.
Lund University · SEHelsingborgs lasarett · SELinköping University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeAcute trauma-related rotator cuff tears are believed to have better healing potential than chronic tears due to less degenerative changes of the tendons. However, the histopathological condition of tendons from trauma-related tears is not well investigated. The purpose of this study was to explore specific histopathological features in tendons from acute trauma-related full-thickness rotator cuff tears and to compare them to findings in tendons from nontraumatic, chronic tears.

methodsIn a prospective cohort study, 62 previously asymptomatic patients [14 women, median age 61 years (range 42-75)] with trauma-related full-thickness rotator cuff tears were consecutively included. Arthroscopic repair was performed within 30 (median, IQR 25-37) days after the injury. During surgery, tissue biopsies were harvested from the supraspinatus tendons in 53 (86%) of the patients. In addition, similar biopsies were harvested from 10 patients undergoing surgery for chronic tears without history of trauma. All tissue samples were examined by a well-experienced pathologist under light microscope. Tendon degeneration was determined using the Bonar score whereas immunostaining was used for proliferation (Ki67), inflammation (CD45), apoptosis (p53) and haemosiderin staining to study traces of bleeding.

resultsThe median (IQR) Bonar score for the acute trauma-related biopsies was 10.5 (7.5-14.5) compared to 11 (5-12.8) for the control group with no statistically significant difference between the groups. No statistically significant between-group difference was found for the inflammatory index whereas tendons from patients with trauma-related full-thickness rotator cuff tears had statistically significantly higher apoptosis [3.1 (0.5-8.9) vs. 0.1 (0-1.5), p = 0.003] and proliferation [4.0 (1.8-6.9) vs. 0.4 (0-2.0), p = 0.001) indices than those undergoing surgery for chronic tears. Positive haemosiderin staining was found in 34% of tissue samples from patients with trauma-related tears compared to 10% in the control group (n.s).

conclusionThis study suggests that there is no difference with regard to degenerative changes between supraspinatus tendons harvested from patients with acute, trauma-related rotator cuff tears and patients with nontraumatic, chronic tears. LEVEL OF EVIDENCE: II.

Indexed as

Rotator Cuff InjuriesAdultAgedArthroscopyFemaleHemosiderinHumansMiddle AgedProspective StudiesRotator CuffTendonsHemosiderinAcute rotator cuff tearApoptosisArthroscopyHistopathologyRotator cuffShoulderSupraspinatus tendonTendon degenerationTrauma-related rotator cuff tear

Identifiers

PMID35133449
PMCPMC9206597
OpenAlexW4210914711

What OpenQuestion holds

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LicenceCC BY
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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.