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Return to play after thigh muscle injury in elite football players: implementation and validation of the Munich muscle injury classification
Linköping University, Department of Medical and Health Sciences, Division of Community Medicine. Linköping University, Faculty of Health Sciences.
Swedish School Sport and Health Science, Sweden .
Linköping University, Department of Medical and Health Sciences, Division of Physiotherapy. Linköping University, Faculty of Health Sciences.
Harvard University, MA USA .
2013 (English)In: British Journal of Sports Medicine, ISSN 0306-3674, E-ISSN 1473-0480, Vol. 47, no 12, 769-774 p.Article in journal (Refereed) Published
Abstract [en]

Background Owing to the complexity and heterogeneity of muscle injuries, a generally accepted classification system is still lacking. less thanbrgreater than less thanbrgreater thanAims To prospectively implement and validate a novel muscle injury classification and to evaluate its predictive value for return to professional football. less thanbrgreater than less thanbrgreater thanMethods The recently described Munich muscle injury classification was prospectively evaluated in 31 European professional male football teams during the 2011/2012 season. Thigh muscle injury types were recorded by team medical staff and correlated to individual player exposure and resultant time-loss. less thanbrgreater than less thanbrgreater thanResults In total, 393 thigh muscle injuries occurred. The muscle classification system was well received with a 100% response rate. Two-thirds of thigh muscle injuries were classified as structural and were associated with longer lay-off times compared to functional muscle disorders (pandlt;0.001). Significant differences were observed between structural injury subgroups (minor partial, moderate partial and complete injuries) with increasing lay-off time associated with more severe structural injury. Median lay-off time of functional disorders was 5-8 days without significant differences between subgroups. There was no significant difference in the absence time between anterior and posterior thigh injuries. less thanbrgreater than less thanbrgreater thanConclusions The Munich muscle classification demonstrates a positive prognostic validity for return to play after thigh muscle injury in professional male football players. Structural injuries are associated with longer average lay-off times than functional muscle disorders. Subclassification of structural injuries correlates with return to play, while subgrouping of functional disorders shows less prognostic relevance. Functional disorders are often underestimated clinically and require further systematic study.

Place, publisher, year, edition, pages
BMJ Publishing Group , 2013. Vol. 47, no 12, 769-774 p.
Keyword [en]
Hamstring injuries, MRI, Soccer, Muscle damage, injuries, Muscle injury and inflammation
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-97451DOI: 10.1136/bjsports-2012-092092ISI: 000322868800013OAI: oai:DiVA.org:liu-97451DiVA: diva2:647822
Available from: 2013-09-12 Created: 2013-09-12 Last updated: 2017-12-06

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Ekstrand, JanMagnusson, Henrik

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