Background: There is no absolute agreement on how to best treat slipped capital femoral epiphysis (SCFE). Different clinical presentations, different classifications, and different surgical procedures that have been described led to disagreements and different trends. At the moment, there are no recommendations based on facts. Different surgeries can be broken down into fixation in place, compensatory osteotomies, and direct corrections of the deformity at the head-neck junction. Objective:This study aimedto assess the outcomes of patients with mild to moderate slipped capital femoral epiphysis treated with in situ pinning. Patients and methods: A prospective study on eighteen patients (23 hips), with mean age of 13.11 ± 1.53 years, presented with mild to moderate SCFE, in situ fixation was used to treat them. Patients with mild to moderate slipped capital femoral epiphysis confirmed clinically and radiologically. Pre-slip and bilateral cases in the high-risk patients were included. Patients with severe SCFE were excluded. Results: There was a significant relationship between outcome and complications where all patients with fair outcomes were complicated and all those with excellent outcomes were uncomplicated. Conclusion: Treatment with in situ pinning for pre slip and slipped capital femoral epiphysis that were mild to moderate was taken into account as an effective method in treatment and gave good results with a low complication rate.