Ligament tear in left knee. To operate?

I have one small accident before 10-15 years I felt from bicycle at that time I had injury on left knee and after that it has swelling for one two weeks after that I had consulted orthopedic doctor in my village and he had prescribed me some medicines and suggested for X- ray which I did and from that doctor revealed that there is no injury to bones and it became normal after medications. But after that I am suffering from a severe slip off when I am walking and it is that much severe that m not able to walk n it will get normal after medications It happens very rarely i. e i had same before 9 years and now before 2 month so i have consulted same doctor in my village nd he suggested me MRI of left knee which attaching herewith. Please see and suggest whether it is curable normally or mandatory to operate