ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2018
Cohen's MRI scoring system has limited value in predicting return to play.
Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 7 papers, 2 of them syntheses that pooled it.
What it found
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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.
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Who cites it
7 citing papers in PubMed, 2 syntheses or guidelines pooled it, 11 citations in OpenAlex.
- Return-to-Play Criteria Following Lower Limb Muscle Injuries in Soccer: A Systematic Review with Evidence Synthesis.Sports medicine (Auckland, N.Z.) · 2026Pooled it
- Location of Hamstring Injuries Based on Magnetic Resonance Imaging: A Systematic Review.Sports healthPooled it
- MRI radiomics for hamstring strain injury identification and return to sport classification: a pilot study.Skeletal radiology · 2024Article
- Evidence-Based Management and Factors Associated With Return to Play After Acute Hamstring Injury in Athletes: A Systematic Review.Orthopaedic journal of sports medicine · 2021Review
- MRI in acute muscle tears in athletes: can quantitative T2 and DTI predict return to play better than visual assessment?European radiology · 2020Observational
- Musculoskeletal healthcare: Have we over-egged the pudding?International journal of rheumatic diseases · 2019Article
- Magnetic resonance imaging for assessing hamstring injuries: clinical benefits and pitfalls - a review of the current literature.Open access journal of sports medicine · 2017Review
Corrections and comments
- Erratum issued
Authors and funding
7 authors at 3 institutions in 4 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeNumerous authors have hypothesised that MRI scoring systems provide a valid means of predicting return to play duration following an acute hamstring muscle strain. The purpose is to prospectively investigate the predictive value of the MRI scoring system of Cohen for return to sport (RTS), following an acute hamstring injury.
methodsMale football (soccer) players (n = 139) with acute onset posterior thigh pain underwent standardised clinical and MRI examinations within 5 days after injury. All players underwent a standardised physiotherapy regimen with RTS documented. The MRI scoring was statistically evaluated against RTS.
resultsOne hundred and ten MRI-positive hamstring injuries were evaluated with RTS duration ranging from 1 to 66 days. Total Cohen's MRI score accounted for approximately 4% of the variance in RTS duration. When comparing those with an MRI score of 10 or more took on average 9.8 days longer to RTS than those with an MRI score less than 10 (effect size: 0.85, p < 0.01).
conclusionsUtilising the Cohen's MRI scoring system previously described, we were unable to provide a clinically useful prognosis for RTS in male soccer players. This may reflect the broader challenges of attempting to accurately determine RTS duration from imaging performed at a single point in time. LEVEL OF EVIDENCE: Prospective case series, IV.
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Registered trials
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.