I have had four surgeries on a broken humerus, the head was snapped off the bone. First, a plate was put in to hold together, then removed because a screw broke and caught on plate. It was fused with cadaver bone. Three months later, it broke again from an auto accident. The third surgery put another plate back in and my own bone was used for hip, but prior to surgery a muscle test was done and at the time, I had lost over 30% of my muscle. Infection set in and after a month of iv antibiotics of Vancomiacin, the plate was put back in. This last surgery was done a week ago. There was always hardness, like a rock was in my arm, after the second surgery. I was wondering if it s possible that I have myopathies and if so, how do I know? Four of the five tests for infection were positive prior to the third surgery when the plate was put back in.