Your spine is composed of small bones called vertebrae and consists of a disc between each bone that acts as a cushion and allows easy movement of the bones, but when these discs are damaged, the bones rub against each other, making the motion painful.
Artificial disc replacement is an alternative for spinal fusion. Sometimes, the patients who have undergone spinal fusion surgery, do not get relief from the back pain and the reason can be the immobility of the spine. With artificial disc replacement, the patient can preserve their normal motion.