As you know, pre-op tests and my own intuition revealed that my thyroid was once again out of control. The actual diagnosis is Grave's disease. Wikipedia has an informative article on the topic. I was most struck by the psychological effects, which include anxiety and depression. Boy, that explains why I have been feeling really, really anxious and depressed for the past several weeks.
But wait! There's more!
I was incredibly lucky to get an emergency appointment with an endocrinologist yesterday afternoon. After reviewing my test results, she advised me to cancel the surgery. With my thyroid levels being so abnormal, I could have gone into a "thyroid storm" on the operating table, had a stroke and possibly died.
So this cancellation is definitely a cloud with a silver lining.
I have to wait until my thyroid is back to completely normal function. Having been through this before, I suspect it will take from 6 months to a year. Only then can I call my surgeon to reschedule the knee surgery. All in all, it could be about two years before I get a new knee.
But honestly, I much prefer living with a crunchy knee to not living at all.