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Background: Genu varum is a deformity marked by outward bowing of the leg which is accompanied with pain only in severe cases. Failure in timely diagnosis results in the loss of quality of life in future and high health care costs. The purpose of this study was to evaluate genu varum prevalence in male students aged 7-16 years and identify the cases in need of treatment. Materials and Methods: In this cross-sectional study, femoral intercondylar distance (ICD) of 3692 male students aged 7-16 years who were chosen randomly in Arak city was measured. ICD>0.5 cm was considered as genu varum and to determine whether cases need treatment, the MT-MF angle and WBL% were used. Results: The results indicated that the prevalence of genu varum was 2.53% in primary school, 6.98% in junior high school, and 16.33% in senior high school students. The findings showed a significant relationship between the prevalence of genu varum and age, BMI, and the history of lower limb trauma with or without fracture. Overall, 33% of the students required treatment. Conclusion: Considering the importance of having healthy knees, clinical examination and regular screening programs for identifying cases with mild genu varum is recommended. The importance of implementation of regular screening programs is confirmed by the increasing prevalence of diseases associated with age and the high percentage of patients requiring treatment.

Keywords: Genu varum, Screening, Students

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