OA of the knees is graded 1-4, 4 being bone to bone. I cannot believe you have put a photo of your xrays online- one needs to see the xray in the flesh so to speak.
You obviously do not live here because we do not have traumatologists in this country and if we did, they would work specifically in the A&E dept.
You need to see a doctor for advice, not a random bunch of strangers, some with and most without medical knowledge.
A lot depends on your age and lifestyle.