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Three distinct mechanisms predominate in non-contact anterior cruciate ligament injuries in male professional football players: a systematic video analysis of 39 cases
Linköping University, Department of Medical and Health Sciences, Division of Community Medicine. Linköping University, Faculty of Medicine and Health Sciences.
Norwegian School Sport Science, Norway.
Norwegian School Sport Science, Norway.
Norwegian School Sport Science, Norway.
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2015 (English)In: British Journal of Sports Medicine, ISSN 0306-3674, E-ISSN 1473-0480, Vol. 49, no 22Article in journal (Refereed) PublishedText
Abstract [en]

Background Current knowledge on anterior cruciate ligament (ACL) injury mechanisms in male football players is limited. Aim To describe ACL injury mechanisms in male professional football players using systematic video analysis. Methods We assessed videos from 39 complete ACL tears recorded via prospective professional football injury surveillance between 2001 and 2011. Five analysts independently reviewed all videos to estimate the time of initial foot contact with the ground and the time of ACL tear. We then analysed all videos according to a structured format describing the injury circumstances and lower limb joint biomechanics. Results Twenty-five injuries were non-contact, eight indirect contact and six direct contact injuries. We identified three main categories of non-contact and indirect contact injury situations: (1) pressing (n=11), (2) re-gaining balance after kicking (n=5) and (3) landing after heading (n=5). The fourth main injury situation was direct contact with the injured leg or knee (n=6). Knee valgus was frequently seen in the main categories of non-contact and indirect contact playing situations (n=11), but a dynamic valgus collapse was infrequent (n=3). This was in contrast to the tackling-induced direct contact situations where a knee valgus collapse occurred in all cases (n=3). Conclusions Eighty-five per cent of the ACL injuries in male professional football players resulted from non-contact or indirect contact mechanisms. The most common playing situation leading to injury was pressing followed by kicking and heading. Knee valgus was frequently seen regardless of the playing situation, but a dynamic valgus collapse was rare.

Place, publisher, year, edition, pages
BMJ PUBLISHING GROUP , 2015. Vol. 49, no 22
National Category
Clinical Medicine
URN: urn:nbn:se:liu:diva-123830DOI: 10.1136/bjsports-2014-094573ISI: 000365796900011PubMedID: 25907183OAI: diva2:892867

Funding Agencies|Union of European Football Associations; Swedish Football Association; Football Association Premier League Limited; Swedish National Centre for Research in Sports; Royal Norwegian Ministry of Culture; South-Eastern Norway Regional Health Authority; International Olympic Committee; Norwegian Olympic Committee & Confederation of Sport; Norsk Tipping AS

Available from: 2016-01-11 Created: 2016-01-11 Last updated: 2016-04-25

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Waldén, MarkusHägglund, Martin
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