Should I have still have jaw surgery and will it help osteoarthritis?

I had upper jaw surgery 8 years ago to correct my anterior openbite. After the surgery my teeth didn't line up so I had elastics for about 10 days but that didn't fix the problem. Since then my bite has relapsed and I now have a 3mm gap. I want to correct my bite but had a ct scan which showed I have moderate osteoarthritis in my left TMJ and minor osteoarthritis in my right TMJ. I do get a little pain in my left jaw joint all the time and occasionally get pins and needles in both jaw joints.

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