@ray666 Hi Ray, Jennifer here with an answer to all 3 of your questions... YES... YES... and YES.

I had an unsteady gait and walked with a limp during the times when I had more pressure on my already compressed spinal cord when the vertebrae were shifted by a muscle spasm. It was an intermittent problem and when my therapist realigned my vertebrae toward a normal curvature and straightened out the twisted vertebrae, I walked normally again.... until the next spasm threw it off again.

Yes ACDF C5/C6 with only a cadaver bone spacer and no hardware.

The outcome is I walk normally now and you have heard all my stories about how I regained my functioning of my arms. I have not had any unsteady gait at all since my surgery, other than rehab after a broken ankle last year. I also used to get vertigo from my spine issues and that stopped and muscle spasms were much better after surgery. I may have something happening now and I have an MRI scheduled to find out. It has been 5 years since the original surgery.