The International Knee Documentation Committee Subjective Knee Form (IKDC2000) and the Knee Injury and Osteoarthritis Outcome Score (KOOS) are knee-specific measures. However, their association with a return to sports after anterior cruciate ligament reconstruction (ACLR) is unknown. This study aimed to investigate the association between the IKDC2000 and the KOOS subscales and the return to the same pre-injury level of sport two years after ACLR. Forty athletes that were two years post-ACLR participated in this study. Athletes provided demographic information, filled out the IKDC2000 and KOOS subscales, and indicated whether they returned to any sport and whether they returned to the same pre-injury level (same duration, intensity, and frequency). In this study, 29 (72.5%) athletes returned to play any sport and eight (20%) returned to the same pre-injury level. The IKDC2000 (r: 0.306, p = 0.041) and KOOS quality of life (KOOS-QOL) (r: 0.294, p = 0.046) significantly correlated with the return to any sport, but it was age (r: −0.364, p = 0.021), BMI (r: −0.342, p = 0.031), IKDC2000 (r: 0.447, p = 0.002), KOOS-pain (r: 0.317, p = 0.046), KOOS sport and recreation function (KOOS-sport/rec)(r: 0.371, p = 0.018), and KOOS QOL (r: 0.580, p > 0.001) that significantly correlated with a return to the same pre-injury level. High KOOS-QOL and IKDC2000 scores were associated with returning to any sport, and high KOOS-pain, KOOS-sport/rec, KOOS-QOL, and IKDC2000 scores were all associated with returning to the same pre-injury level of sport.

Knee osteoarthritis (KOA) is a common musculoskeletal condition among older adults and has been associated with falls and fear of falling (FOF). However, evidence on these associations among older adults in Jordan remains limited. This cross-sectional study examined the associations of KOA and Knee injury and Osteoarthritis Outcome Score(KOOS)-based symptom burden with falls and FOF among 409 community-dwelling older adults in Jordan. Data were collected on sociodemographic characteristics, Body mass index (BMI), psychological status, fall history, and FOF. Participants with KOA had significantly higher odds of reporting falls and clinically significant fear of falling than those without KOA. In the fully adjusted model, KOA was associated with higher odds of falls (odds ratio (OR) = 19.79, 95% confidence interval (CI) 10.47–37.42) and clinically significant fear of falling (OR = 5.09, 95% CI 3.03–8.57). Higher KOOS-based symptom burden was associated with greater odds of falls, whereas symptom burden was not independently associated with clinically significant fear of falling after adjustment for psychological factors. KOA was associated with falls and clinically significant fear of falling among older adults in Jordan. Prospective longitudinal studies are needed to clarify the temporal relationships among knee osteoarthritis, falls, and fear of falling. In addition, intervention studies are needed to inform the development and evaluation of tailored fall-prevention strategies in this population.