Epidemiology of knee injuries among boys and girls in US high school athletics
The knee joint is the second most commonly injured body site and the leading cause of high school sportsrelated surgeries. Knee injuries are among the most economically costly sports injuries and may require subsequent surgery or extensive and
Purpose: To report the incidence, risk, and severity of high school knee injuries across sports, genders, and type of exposure.
Study Design: Descriptive epidemiology study.
Methods: During the 20052006 and 20062007
school years, 100 US high schools were randomly selected for a nationally representative sample. Certified athletic trainers tracked injuries using an online injury surveillance system, High School RIOTM, in 9 high school sports.
were 1383 knee injuries reported during 3 551 131 athlete exposures for a rate of 3.89 knee injuries per 10 000 athlete exposures. Although boys had a higher overall rate of knee injury (rate ratio, 1.38; confidence interval, 1.221.55), girls were
twice as likely to sustain knee injuries requiring surgery (major knee injuries) than were boys (injury proportion ratio, 1.98; confidence interval, 1.452.70) and twice as likely to incur noncontact major knee injuries (injury proportion ratio,
1.98; confidence interval, 1.233.19) as were boys. Although illegal play was identified as a contributing factor in only 5.7% of all knee injuries, 20% of knee injuries resulting from illegal play required surgery.
Conclusion: Knee injury rates
and patterns varied by sport, gender, and type of exposure. Identified gender differences included differences in injury rates, injury severity, and basic injury mechanism. Further surveillance is crucial for the development of targeted,
evidence-based injury prevention strategies to reduce the morbidity and economic impact of knee surgeries.
© Copyright 2008 The American Journal of Sports Medicine. Sage Publications. All rights reserved.
|Subjects:||injury damage junior elite sport youth USA knee joint statistics sport soccer volleyball basketball wrestling baseball softball|
|Notations:||biological and medical sciences junior sports|
|Published in:||The American Journal of Sports Medicine|