Objective: to analyze the early clinical effect of proximal fibular osteotomy on medial compartment knee osteoarthritis. Methodology: present study includes 30 knees with medial compartment osteoarthritis of knee with Kellgren-Lawrence Grades between 1 to 3 based on x ray findings who visited our hospital between June 2017 and June 2019 and underwent PFO. Patients were followed up till 6 months. Review of the patients with regards to their VAS Score, Oxford Knee Score and weight bearing radiographs was done with follow ups at 1, 3 and 6 months post operatively. Result: Significant improvement in mean visual analogue pain score (VAS), from 6.83 preoperative to 3.20 at the final follow up was observed (p-value <0.001). Medial joint space opening from 2.81 to 3.74 at final follow up was observed. Oxford knee society score showed significant improvements at final follow up (p-value < 0.001). Conclusion: The functional outcome after proximal fibular osteotomy were satisfactory. With correct patient selection and meticulous adherence to basics, Proximal fibular osteotomy offers an excellent alternative to tedious and extensive procedures like High tibial osteotomy (HTO) and Uni-compartmental Knee Arthroplasty (UKA).