Impact of comprehensive physiotherapy on functional status and quality of life in adolescents with Osgood–Schlatter disease: results of a randomized clinical trial

Objective. To assess the effectiveness of a comprehensive physiotherapeutic intervention (calcium-phosphorus electrophoresis and interferential therapy) in adolescents with Osgood–Schlatter disease using the KOOS and SF-36 questionnaires. Materials and methods. Ninety adolescents diagnosed with Osgood–Schlatter disease were divided into three groups: control (physical therapy), comparison (physical therapy + electrophoresis), and main (physical therapy + electrophoresis + interferential therapy). KOOS and SF-36 were used to assess dynamics before treatment, after the course, and 12 months later. Statistical analysis included Student's t-test, Mann–Whitney U test, and Wilcoxon test. Results. The main group showed statistically significant improvement across all KOOS and SF-36 domains. The most notable changes were observed in the KOOS subscale “sports and recreation” and the SF-36 domains “vitality,” “physical functioning,” and “pain.” The comparison group showed moderate improvement; the control group showed minimal change. Improvements were maintained at 12 months. Conclusion. The proposed combination of physiotherapeutic methods is effective for the rehabilitation of adolescents with Osgood–Schlatter disease and provides stable recovery of function and quality of life