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J Athl Train. 2013 Nov-Dec;48(6):810-7. doi: 10.4085/1062-6050-48.6.03. Epub 2013 Oct 23.

A multisport epidemiologic comparison of anterior cruciate ligament injuries in high school athletics.

Author information

  • 1Center for Injury Research and Policy, The Research Institute at Nationwide Children's Hospital, Columbus, OH.

Abstract

BACKGROUND:

The knee joint is the second most commonly injured body site after the ankle and the leading cause of sport-related surgeries. Knee injuries, especially of the anterior cruciate ligament (ACL), are among the most economically costly sport injuries, frequently requiring expensive surgery and rehabilitation.

OBJECTIVE:

To investigate the epidemiology of ACL injuries among high school athletes by sport and sex.

DESIGN:

Descriptive epidemiology study.

MAIN OUTCOME MEASURE(S):

Using an Internet-based data-collection tool, Reporting Information Online (RIO), certified athletic trainers from 100 nationally representative US high schools reported athlete-exposure and injury data for athletes from 9 sports during the 2007/08-2011/12 academic years. The outcome of interest in this study was ACL injuries.

RESULTS:

During the study period, 617 ACL injuries were reported during 9 452 180 athlete exposures (AEs), for an injury rate of 6.5 per 100 000 AEs. Nationally, in the 9 sports studied, an estimated 215 628 ACL injuries occurred during the study period. The injury rate was higher in competition (17.6) than practice (2.4; rate ratio [RR] = 7.3, 95% confidence interval [CI] = 6.08, 8.68). Girls' soccer had the highest injury rate (12.2) followed by boys' football (11.1), with boys' basketball (2.3) and boys' baseball (0.7) having the lowest rates. In sex-comparable sports, girls had a higher rate (8.9) than boys (2.6; RR = 3.4, 95% CI = 2.64, 4.47). Overall, 76.6% of ACL injuries resulted in surgery. The most common mechanisms of injury were player-to-player contact (42.8%) and no contact (37.9%).

CONCLUSIONS:

Anterior cruciate ligament injury rates vary by sport, sex, and type of exposure. Recognizing such differences is important when evaluating the effectiveness of evidence-based, targeted prevention efforts.

PMID:
24143905
[PubMed - in process]
PMCID:
PMC3867093
[Available on 2014/11/1]
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