Compression Fracture
Most often caused by osteoporosis, a compression fracture is when bone collapses. This often refers to short bones like the vertebrae in the spine (vertebral compression fractures).
A fracture of this nature can affect more than one vertebra. Multiple compression fractures in the spine leads to shortened height, and a forward curvature of the spine, resembling a hump. Compression fractures are most common in elderly adults, especially women.