Spinal decompression or traction is procedure that involves application of controlled and guided force to elongate or stretch spinal muscles and to create gap between the bones of your spine to relieve pressure on spinal nerve roots, decrease pressure on disc and may improve nutrition to the discs. Spinal decompression can help patient with neck and low back pain that radiates down the arms or legs, sensation of tingling and numbness. People with degenerative changes in spinal joints can be a good candidate for spinal decompression.