Aim:The aim of the present study was to assess the long term radiological and clinical follow-up of 5 years in varus derotation osteotomy in perthes disease. Methods:This retrospective study was conducted in the orthopedic department and 30 patients with Perthes` disease were enrolled over the period of 5 years, patients aged 6-12 years. Results:The age range was between 6 and 12 years, with an average ± standard deviation of 9.51 ± 1.80 years. Based on the clinical parameters, it was observed that 53.33% of the patients were below the age of 8. Among the total of 30 patients, 23 were male. The right hip was the most affected, followed by the left hip then both sides simultaneously. The lateral pillar classification revealed that 50% of patients exhibited grade C and 36.66% exhibited grade B & C. Conversely, 13.34% possessed B. The majority of femur head radiographs showed subluxation and metaphyseal resorption, accounting for 36.66% and 30% of cases, respectively. Only 3 radiographs (10%) demonstrated Gage’s sign as the only finding. The patients' radiological stages were primarily characterized by early, late, and early healing periods. Conclusion:The research found that the Stulberg classification, along with age, lateral pillar classification, and pre-operative radiological stages of the illness, is the most influential factor in predicting outcomes.