Evidence map›Paper›PMID 34370085›Full record

ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2021

Football-related injuries are the major reason for the career end of professional male football players.

Matthias Koch, Martin Klügl, Borys Frankewycz, Siegmund Lang, Michael Worlicek, Daniel Popp, Volker Alt, Werner Krutsch

Abstract read
In one paragraph

Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 2 pooled it
–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

24 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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  9. Sport-specific differences in ACL injury, treatment and return to sports: Football.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025
    Review
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  19. No difference in return to play rates between different elite sports after primary autograft ACL reconstruction.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023
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  20. 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

8 authors.

Matthias KochDepartment of Trauma Surgery, University Medical Centre Regensburg, Regensburg, Germany. matthias.koch@ukr.de.ORCID http://orcid.org/0000-0001-9408-9015
Martin Klüglherz:bewegt - Praxis für Kardiologie und Sportmedizin, Bahnhofstraße 19, 94315, Straubing, Germany.
Borys FrankewyczDepartment of Trauma Surgery, University Medical Centre Regensburg, Regensburg, Germany.
Siegmund LangDepartment of Trauma Surgery, University Medical Centre Regensburg, Regensburg, Germany.
Michael WorlicekDepartment of Trauma Surgery, University Medical Centre Regensburg, Regensburg, Germany.
Daniel PoppDepartment of Trauma Surgery, University Medical Centre Regensburg, Regensburg, Germany.
Volker AltDepartment of Trauma Surgery, University Medical Centre Regensburg, Regensburg, Germany.
Werner KrutschDepartment of Trauma Surgery, University Medical Centre Regensburg, Regensburg, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeLittle is known about the consequences of injuries on professional male football players' career and retirement period. The aim of this study is to investigate the impact of injuries that male professional football players endure during their career, reasons for the end of their career and the post-career phase of retirement.

methodsIn a retrospective cross-sectional cohort study, retired male professional football players of the German Bundesliga were investigated by a standardised questionnaire to analyse the history of injuries sustained during their professional football career, the reasons for ending their career, their current health status and their suggestions for future prevention strategies.

resultsMost of the 116 analysed players (n = 73 (62.9%)) stated an injury as the reason for ending their professional career. Relevant injuries were mainly located in the lower extremities (n = 587 (61.3%)) with a focus on the knee (p < 0.001) and ankle (p < 0.001). A significant majority of the participants who had retired due to injury described degenerative symptoms, such as pain or instability, and were diagnosed with osteoarthritis after retirement (p < 0.001). These players had also often been affected by symptoms of depression during their career, which had decreased significantly after retirement. Moreover, players who had not retired due to injury had significantly better overall health status and quality of life after retirement.

conclusionFootball-related injuries have a significant impact on the career end of professional male football players and their health status after retirement. Future prevention strategies need to particularly address injuries to the knees and ankles and to implement measures for preventing osteoarthritis after retirement. LEVEL OF EVIDENCE: Level III.

Indexed as

SoccerCross-Sectional StudiesHumansMaleQuality of LifeRetrospective StudiesFootballInjuryKnee injuryOsteoarthritisProfessional football playerRetirement in footballSoccer

Identifiers

PMID34370085
PMCPMC8514381

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.