2023 ISAKOS Biennial Congress ePoster
Impact of Hip Outcomes on Knee and Ankle Outcomes in Elite Nordic Skiers
Kinjal Vasavada, BA UNITED STATES
Nicole Danielle Rynecki, MD, New York, NY UNITED STATES
Noah Kirschner, MD, New York, New York UNITED STATES
Charles C Lin, MD, New York, New York UNITED STATES
Amanda Avila, MPH UNITED STATES
Dhruv S Shankar, BS, New York UNITED STATES
Andrew L. Chen, MD, Franconia, NH UNITED STATES
Cordelia Carter, Westport, CT UNITED STATES
Lauren E Borowski, MD, New York, New York UNITED STATES
Heather Milton, Masters, New York, New York UNITED STATES
Guillem Gonzalez-Lomas, MD, New York, NY UNITED STATES
NYU Langone Health Department of Orthopedic Surgery, New York, New York, UNITED STATES
FDA Status Not Applicable
Summary
Nordic Combined (NC) and Ski Jumping (SJ) athletes have a high prevalence of chronic hip pathology which may lead to altered knee and ankle biomechanics. The purpose of the present study was to determine the relationship between athlete-reported lower extremity outcomes in a proximal-to-distal sequence.
ePosters will be available shortly before Congress
Abstract
Introduction
Nordic Combined (NC) and Ski Jumping (SJ) athletes have a high prevalence of chronic hip pathology which may lead to altered knee and ankle biomechanics. The purpose of the present study was to determine the relationship between athlete-reported lower extremity outcomes in a proximal-to-distal sequence.
Methods
Elite SJ and NC athletes who competed at the national and international level were prospectively recruited to complete a survey eliciting information about their Hip Disability and Osteoarthritis Outcome Score (HOOS), International Knee Demographic Score (IKDC), and Foot and Ankle Outcome Score (FAOS). Univariate linear regressions modeling IKDC and FAOS subscores were performed for each of the following independent variables: age, sex, BMI, nordic event (NC or SJ), HOOS subscore, and FAOS subscore or IKDC score respectively.
Results
A total of 22 athletes were included in the study. HOOS symptom subscores were significantly lower (worse) among SJ compared to NC athletes (p = 0.002). HOOS QOL was lower for female athletes compared to male athletes (54 ± 21, 73 ± 4.0; p = 0.029) for the entire cohort. An increase in HOOS pain subscore (0.54 ± 0.20, p=0.016) and HOOS sports subscore (0.40 ± 0.17, p=0.042) was associated with a significant increase in IKDC score. An increase in HOOS symptom subscore (0.63 ± 0.21, p=0.011) was associated with a significant increase in FAOS symptoms subscore.
Discussion And Conclusion
Elite NC and SJ athletes are at high risk for hip pain which increases their risk for developing knee and ankle pain as well. These findings strongly suggest that training targeted to hip strength and conditioning may optimize knee and ankle outcomes in elite NC and SJ athletes. The results of the present study may help guide physicians, allied health personnel, and coaches to alter lower extremity training regimens to decrease risk of injury.