Knee confidence in youth and young adults at risk of post-traumatic osteoarthritis 3–10 years following intra-articular knee injury

To examine differences in knee confidence between individuals with a history of youth sport-related knee injury and uninjured controls. Historical cohort study. Participants include 100 individuals who sustained a youth sport-related intra-articular knee injury 3–10 years previously and 100 age-, se...

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Bibliographic Details
Published in:Journal of science and medicine in sport 2018-07, Vol.21 (7), p.671-675
Main Authors: Ezzat, A.M., Whittaker, J.L., Toomey, C., Doyle-Baker, P.K., Brussoni, M., Emery, C.A.
Format: Article
Language:English
Subjects:
Adolescent
Age
Arthritis
Body composition
Children & youth
Disease prevention
Influence
Knee confidence
Medical research
Osteoarthritis
Pain
Psychological factors
Sport injury
Studies
Teenagers
Young adults
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Summary:To examine differences in knee confidence between individuals with a history of youth sport-related knee injury and uninjured controls. Historical cohort study. Participants include 100 individuals who sustained a youth sport-related intra-articular knee injury 3–10 years previously and 100 age-, sex- and sport-matched uninjured controls. Outcomes included: Knee confidence (Knee Osteoarthritis and Outcome Score); fat mass index (FMI; dual-energy X-ray absorptiometry); and weekly physical activity (modified Godin–Shephard Leisure Time Questionnaire). Mean within-pair differences (95% CI) were calculated for all outcomes. Unadjusted and adjusted (FMI and physical activity) conditional (matched-design) logistic regression (OR 95% CI) examined the association between injury history and knee confidence. Median age of participants was 22 years (range 15–26) and median age at injury was 16 years (range 9–18). Forty-nine percent (95% CI; 39.0, 59.0) of previously injured participants were bothered by knee confidence, compared to 12% (5.5, 18.5) of uninjured participants. Although there was no between group difference in physical activity, injured participants had higher FMI compared to controls (within-pair difference; (95% CI): 1.05kg/m2; (0.53, 1.57)). Logistic regression revealed that injured participants had 5.0 (unadjusted OR; 95% CI; 2.4, 10.2) and 7.5 times (adjusted OR; 95% CI: 2.7, 21.1) greater odds of being bothered by knee confidence than controls. Knee confidence differs between individuals with a previous youth sport-related knee injury and healthy controls. Knee confidence may be an important consideration for evaluating osteoarthritis risk after knee injury and developing secondary prevention strategies.
ISSN:1440-2440
1878-1861
DOI:10.1016/j.jsams.2017.11.012