Lumbar corset works by putting pressure on your abdomen. This takes weight off your spine and joints to help you heal more easily. You may need a lumbar corset if you have low back pain, arthritis, or a degenerative disc disease. A corset can also be used for a short time to treat pain from a sprain or strain. A corset may also be used to stabilize your spine after a fracture or surgery. The corset will remind you not to move in certain directions, or to move more slowly. This will prevent you from moving quickly and causing more injury.