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You need to see an orthopedic surgeon to find the cause behind your problem. You may be having a knee spasm due to truama, arthritis, nerve compression, electrolyte abnormality etc. Trauma could be in the form of a torn piece of cartilage or there may be a losse bone fragment resulting from a disease called osteochondritis dissecans. There could be a misalignment of the bones and muscles around the knee. Treatment will differ depending upon the cause. Imaging may also be required. You need to see an orthopedic surgeon. Thanks and best wishes.
You may have sustained trauma while sleeping which probably did not realize. It could also be a pseudo lock also i.e. just a reaction to pain. The pain does not allow you to bend or straighten up the knee. A locked knee may sometimes unlock after some rest but remember that serious damage may be done to the knee joint if it's because of a loose piece of cartilage or bone. So, it's important that you see an orthopedic surgeon for examination and possibly imaging. Thanks and regards.
You should take rest and if pain is present you can take a painkiller like Ibuprofen till you see an orthopedic surgeon. Thanks.
In that case you should see a doctor now. Delay in treatment could be harmful. You can even consider going to the ER. Thanks.
Why are you thinking of surgery at this time. Conservative treatment may be sufficient. First let the diagnosis get confirmed. Thanks and regards.
Not all surgeons are like that. You might had a complication last time but it's not necessary that you will have it every time. Do not be so biased about doctors. You should also first confirm the diagnosis. Even if surgery is required you can always get a second opinion. At this point, it's important to first confirm the diagnosis. I hope, you understand. Thanks and best wishes.