Is Spondylolysis considered a type of spinal fracture?

It can be considered a type of spinal fracture, but is more specifically a stress fracture. A stress fracture is a tiny crack in the bone that results from overuse or repeated microtrauma (like what happens when you overexert yourself). Spondylolysis is a stress fracture that occurs in the pars interarticularis, the thin piece of bone that separates the vertebrae in your spine.