Hey there,
There are attachments below, please take a look at them,
These are my before & After X-rays of my operations.
Take a good look, the before pic is hugly curved, take a closer look at the lower back, notice the huge curve of my lower spine and the large amount of flesh between it and my skin.
The the After, were it looks normal, but with 4 screws, and 2 titanium rods in either side.