People function every day with compression fractures of vertebrae....symptoms, pain! If the vertebrae is of center, I could possibly press on the spinal cord causing shooting pain, tingling, and/or numbness.
My son broke a vertabra earlier this year when he crashed his paraglider. He was walking within a couple of weeks but wasn't able to work for six months.
It really depends how bad the break is. Some spinal injuries would mean that you could never walk again.