Spinal decompression also known as traction is a type of motorized pull that may help relieve back pain. Spinal decompression work by gently stretching the spine and changes the force and position of the spine. this change relieves compression off the spinal disks, nerves and other structures in your spine. This therapy helps relieve symptoms from pressure on the spinal cord or nerves, including pain, numbness, tingling and weakness. it can be used in the following conditions: