| Title |
Anterior cruciate ligament injury in elite football: a prospective three‐cohort study
|
|---|---|
| Published in |
Knee Surgery, Sports Traumatology, Arthroscopy, June 2010
|
| DOI | 10.1007/s00167-010-1170-9 |
| Pubmed ID | |
| Authors |
Markus Waldén, Martin Hägglund, Henrik Magnusson, Jan Ekstrand |
| Abstract |
Anterior cruciate ligament (ACL) injury causes long lay-off time and is often complicated with subsequent new knee injury and osteoarthritis. Female gender is associated with an increased ACL injury risk, but few studies have adjusted for gender-related differences in age although female players are often younger when sustaining their ACL injury. The objective of this three-cohort study was to describe ACL injury characteristics in teams from the Swedish men's and women's first leagues and from several European men's professional first leagues. Over a varying number of seasons from 2001 to 2009, 57 clubs (2,329 players) were followed prospectively and during this period 78 ACL injuries occurred (five partial). Mean age at ACL injury was lower in women compared to men (20.6 ± 2.2 vs. 25.2 ± 4.5 years, P = 0.0002). Using a Cox regression, the female-to-male hazard ratio (HR) was 2.6 (95% CI 1.4-4.6) in all three cohorts studied and 2.6 (95% CI 1.3-5.3) in the Swedish cohorts; adjusted for age, the HR was reduced to 2.4 (95% CI 1.3-4.2) and 2.1 (95% CI 1.0-4.2), respectively. Match play was associated with a higher ACL injury risk with a match-to-training ratio of 20.8 (95% CI 12.4-34.8) and 45 ACL injuries (58%) occurred due to non-contact mechanisms. Hamstrings grafts were used more often in Sweden than in Europe (67 vs. 34%, P = 0.028), and there were no differences in time to return to play after ACL reconstruction between the cohorts or different grafts. In conclusion, this study showed that the ACL injury incidence in female elite footballers was more than doubled compared to their male counterparts, but also that they were significantly younger at ACL injury than males. These findings suggest that future preventive research primarily should address the young female football player. |
X Demographics
The data shown below were collected from the profiles of 56 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Sweden | 8 | 14% |
| United States | 8 | 14% |
| Spain | 5 | 9% |
| United Kingdom | 4 | 7% |
| Ireland | 2 | 4% |
| Chile | 1 | 2% |
| Canada | 1 | 2% |
| Argentina | 1 | 2% |
| Norway | 1 | 2% |
| Other | 5 | 9% |
| Unknown | 20 | 36% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 40 | 71% |
| Scientists | 13 | 23% |
| Practitioners (doctors, other healthcare professionals) | 3 | 5% |
Mendeley readers
The data shown below were compiled from readership statistics for 640 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Spain | 3 | <1% |
| Germany | 1 | <1% |
| South Africa | 1 | <1% |
| Austria | 1 | <1% |
| United States | 1 | <1% |
| Serbia | 1 | <1% |
| Unknown | 632 | 99% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Bachelor | 120 | 19% |
| Student > Master | 86 | 13% |
| Student > Ph. D. Student | 48 | 8% |
| Researcher | 37 | 6% |
| Student > Postgraduate | 35 | 5% |
| Other | 102 | 16% |
| Unknown | 212 | 33% |
| Readers by discipline | Count | As % |
|---|---|---|
| Sports and Recreations | 173 | 27% |
| Medicine and Dentistry | 140 | 22% |
| Nursing and Health Professions | 47 | 7% |
| Unspecified | 18 | 3% |
| Engineering | 11 | 2% |
| Other | 28 | 4% |
| Unknown | 223 | 35% |
Attention Score in Context
This research output has an Altmetric Attention Score of 33. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 15 October 2021.
All research outputs
#1,147,297
of 24,605,383 outputs
Outputs from Knee Surgery, Sports Traumatology, Arthroscopy
#81
of 2,832 outputs
Outputs of similar age
#3,464
of 100,527 outputs
Outputs of similar age from Knee Surgery, Sports Traumatology, Arthroscopy
#1
of 13 outputs
Altmetric has tracked 24,605,383 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 95th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 2,832 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 6.2. This one has done particularly well, scoring higher than 97% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 100,527 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 96% of its contemporaries.
We're also able to compare this research output to 13 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 99% of its contemporaries.