About this trial
The primary objective of this clinical trial is to evaluate the efficacy and safety of a topical Urtica dioica cataplasm in managing knee pain and functional limitations in athletic children diagnosed with Osgood-Schlatter Disease. Efficacy will be assessed through changes in knee pain using the Visual Analog Scale (VAS) and functional outcomes using the Knee Injury and Osteoarthritis Outcome Score (KOOS). Three groups will be tested:
* UDC Group: topical application of Urtica dioica cataplasm * Standard Care Group: oral vitamin D supplementation and physical rest * Placebo Group: topical application of a placebo cataplasm using Beta vulgaris subsp. cicla
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Healthy male children between 7 and 15 years of age
Active in regular sports practice (e.g., football)
Clinically confirmed diagnosis of OSD
Disqualifiers
Known allergy to Urtica dioica
Presence of dermatological conditions or lesions on the knees
Recent use of anti-inflammatory medications
History of immune or chronic inflammatory diseases
Trial design
Parallel
Treatments tested in this trial
Urtica dioica cataplasm
Other interventionParticipants will receive a warm Urtica dioica cataplasm applied topically on the affected knee, once daily for 60 minutes, three times per week (on alternate days) over a 6-week period.
Placebo
Other interventionParticipants will receive a placebo cataplasm, matched in texture, color, and odor to the active treatment. The placebo is inert and safe for pediatric topical use.
Vitamin D
DrugParticipants will receive oral vitamin D.
Resting conditions
BehavioralReduction in physical activity based on orthopedic advice.
Treatment groups
Trial outcomes
Primary outcomes
Pain intensity
measured using the Visual Analog Scale (VAS), a 10-cm line anchored by "no pain" (0) and "worst imaginable pain" (10). VAS scores will be recorded at each clinical visit during the intervention period.
Secondary outcomes
Functional knee status
assessed using the KOOS-Child questionnaire, covering five subscales (pain, symptoms, activities of daily living, sport/recreation function, and knee-related quality of life). Scores range from 0 (extreme dysfunction) to 100 (no symptoms).
Return to sport
defined as the number of days post-treatment needed to resume regular athletic activity.
Other outcomes
Adverse events
Adverse events (skin reactions, discomfort, or other clinical complaints) will be recorded systematically.
Locations
Sponsors and contacts
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