The purpose of spinal fusion is to grow one or more vertebral bodies together to form a fused bone in order to treat certain pathologies. Plates, posterior fixation devices and interbody devices exist to help stabilize the spine while it fuses and heals. Traditionally, these devices have been implanted through open surgery; however, a growing number of these devices are being implanted using minimally invasive surgery (MIS) techniques. MIS greatly reduces surgical damage to the patient and is much less invasive than an open procedure. MIS for spinal fusion is made possible by complex and innovative surgical technology, allowing implantation of posterior screw/rod and interbody devices with minimal surgical damage or harm to the patient.