Relation of Self-Reported Knee Function and Physical Performance with Psychological Responses in Anterior Cruciate Ligament Reconstructed Individuals

Abstract

Purpose: The aim of this study was to investigate the correlation between anterior cruciate ligament return to sport index after injury (ACL-RSI) score and self-reported knee function, and physical performance in anterior cruciate ligament reconstructed individuals. Methods: Ninety ACL reconstructed individuals at 6 months post-surgery were included in this study. To evaluate psychological responses, ACL-RSI score; and to assess self-reported knee function, International Knee Documentation Committee Subjective Knee Form (IKDC), Knee Injury and Osteoarthritis Outcome (KOOS) and Lysholm scores were selected. One leg hop test and anterior, posteromedial and posterolateral reach distances of star excursion balance test were used to measure physical performance. Pearson correlation test was used for statistical analysis. Results: ACL-RSI score was positively correlated with IKDC, Lysholm and KOOS scores; one leg hop test; and posteromedial and posterolateral reach distances of the star excursion balance test (p<0.05). Discussion: Psychological responses were correlated with self-reported knee function and physical performance in anterior cruciate ligament reconstructed individuals. Therefore, maximizing knee function and performance is important to overcome individuals’ fear of re-injury which affects return to sport after surgery, negatively.