TY - JOUR
T1 - Association Between Injury Mechanisms and Magnetic Resonance Imaging Findings in Rectus Femoris Injuries in 105 Professional Football Players
AU - Geiss Santos, Rafael Cristiano
AU - van Hellemnondt, Frank
AU - Yamashiro, Eduardo
AU - Holtzhausen, Louis
AU - Serner, Andreas
AU - Farooq, Abdulaziz
AU - Whiteley, Rodney
AU - Tol, Johannes L.
N1 - Publisher Copyright: © 2021 Wolters Kluwer Health, Inc.
PY - 2022/7/1
Y1 - 2022/7/1
N2 - OBJECTIVE: To describe the injury mechanism and its association with magnetic resonance imaging (MRI) injury findings in acute rectus femoris injuries. DESIGN: Combined retrospective and prospective descriptive injury study. Retrospective cohort from January 2010 to October 2013 and prospective cohort from October 2013 to January 2019. SETTING: Specialized sports medicine hospital. PARTICIPANTS: Male professional football players older than 18 years playing in a national football league, referred for injury assessment within 7 days after an acute rectus femoris injury, with a positive finding on MRI. INDEPENDENT VARIABLES: Rectus femoris muscle injury MRI findings in relation to injury mechanism in male football players. MAIN OUTCOME MEASURES: Rectus femoris injury mechanism (kicking, sprinting, and others), MRI injury location, and grade. RESULTS: There were 105 injuries in total, with 60 (57.1%) and 45 (42.8%) injuries from the retrospective and prospective cohorts, respectively. Kicking was the injury mechanism in 57 (54.3%) of all acute rectus femoris injuries, sprinting represented 32 (30.4%), and 16 (15.2%) were classified as others. There were 20 (19.05%) free tendon, 67 (63.8%) myotendinous junction and/or intramuscular tendon, and 18 (17.1%) peripheral myofascial located injuries. All free tendon injuries were related to kicking and graded as a complete tear of at least one of the tendons in 15/20 (75.0%) cases. CONCLUSIONS: Kicking seems to be an important mechanism related to complete ruptures and injuries occurring at the proximal free tendon. Sprinting was the other most common mechanism but was never associated with injury to the proximal free tendon.
AB - OBJECTIVE: To describe the injury mechanism and its association with magnetic resonance imaging (MRI) injury findings in acute rectus femoris injuries. DESIGN: Combined retrospective and prospective descriptive injury study. Retrospective cohort from January 2010 to October 2013 and prospective cohort from October 2013 to January 2019. SETTING: Specialized sports medicine hospital. PARTICIPANTS: Male professional football players older than 18 years playing in a national football league, referred for injury assessment within 7 days after an acute rectus femoris injury, with a positive finding on MRI. INDEPENDENT VARIABLES: Rectus femoris muscle injury MRI findings in relation to injury mechanism in male football players. MAIN OUTCOME MEASURES: Rectus femoris injury mechanism (kicking, sprinting, and others), MRI injury location, and grade. RESULTS: There were 105 injuries in total, with 60 (57.1%) and 45 (42.8%) injuries from the retrospective and prospective cohorts, respectively. Kicking was the injury mechanism in 57 (54.3%) of all acute rectus femoris injuries, sprinting represented 32 (30.4%), and 16 (15.2%) were classified as others. There were 20 (19.05%) free tendon, 67 (63.8%) myotendinous junction and/or intramuscular tendon, and 18 (17.1%) peripheral myofascial located injuries. All free tendon injuries were related to kicking and graded as a complete tear of at least one of the tendons in 15/20 (75.0%) cases. CONCLUSIONS: Kicking seems to be an important mechanism related to complete ruptures and injuries occurring at the proximal free tendon. Sprinting was the other most common mechanism but was never associated with injury to the proximal free tendon.
KW - football
KW - imaging
KW - muscle injuries
KW - quadriceps
KW - rectus femoris
KW - thigh
UR - http://www.scopus.com/inward/record.url?scp=85133144110&partnerID=8YFLogxK
U2 - https://doi.org/10.1097/JSM.0000000000000935
DO - https://doi.org/10.1097/JSM.0000000000000935
M3 - Article
C2 - 34050059
SN - 1050-642X
VL - 32
SP - e430-e435
JO - Clinical journal of sport medicine : official journal of the Canadian Academy of Sport Medicine
JF - Clinical journal of sport medicine : official journal of the Canadian Academy of Sport Medicine
IS - 4
ER -