My surgery was done by an Orthopedic Surgeon, it was 14 levels from C7-L4, I have rods and 2inch screws. My brace was made of fiberglass, my surgeon said its really only for looks, so that others will be careful around me, especially my 5 year old son. She also said once the machinery is in place, it is strong enough to hold everything in place until the fusion takes hold.
Oh, when I first came home post-op, I didn't have the brace on for around 3 weeks, I was in a hospital bed with a port-a -potty next to it. The only time I wore the brace was when I got up to stand, sit or walk.
What I found interesting in you message is that you have to wiggle out of your brace. I can't see how that will be possible after your surgery, how will you be able to wiggle?
My brace was made after my surgery so that it fit correctly. At the beginning I had help with putting it on and taking it off, will someone be there to help you?
Make sure you eat healthy bone growing food and take supplements like calcium and iron. You may also want to take a stool softner and laxative initially, it makes things a lot easier. Especially if your on pain meds.
I wish you the best, and hope the your surgery will be successful along with a speedy recovery. uvm