I DO think you're in the wrong forum...unless of course all of this is causing you anxiety (which it prolly is) :0)
According to the MRI reports...an arthroscopy would be the next step...you have a decent amount of issues with the joint, and the ACL, which can be repaired, btw.
If you are doubting your doc, it never hurts to get a second opinion..although an MRI is pretty thorough.
My doctor told me, if you will take care about on exercise then you don't need to arthroscope.
For your Information, I have 8 years old injury. My issue is that I am not able to run 1 KM continue or not much walk. One more think doctor found wasting.
Please let me know I need to follow my doctor advice or need to be arthroscope.
Actually I think you need orthopedics. But what did your orthopedist say? I mean, I assume he ordered the MRI.
You might try your question under neurology sub-forum