Hope you get better soon, I can sympathize with your pain, I broke my back in 2010, also a dog induced accident (we met each other at a blind corner, he (120 pound mastiff) was at full gallop, not his fault I had been calling him and thought he was the other direction, and I landed on bricks wrong too). Your break does not look bad to my untrained eye, mine was what was described as a split compression fracture of L2 (a rare type from what I have found in my research), basically the vertebral body cleaved just about in half right down the middle top to bottom. I spent 4 months in a full turtle shell brace, and am just now getting back close to being 100% a bit over 5 years later. There were numerous landmarks along the way, first time being able to bend down and get something off the ground, first time getting out of bed without rolling onto my side first, first time catching something that tried to blow away in the wind, first time running (meaning more than 2 or 3 rapid steps, still not any real distance, but I never was much of a runner...