Vertebral fixation is a term used to describe a medical condition that results in the immobilization or fixation of the spine. There are several synonyms or alternative phrases that can be used to refer to this condition. One of the most common is spinal fusion, which is a surgical procedure that joins two or more vertebrae together to eliminate motion between them. Another synonym is spinal arthrodesis, which is a similar procedure that creates a bony bridge between two or more vertebrae. Other terms that may be used interchangeably with vertebral fixation include spinal immobilization, spinal bracing, and spinal stabilization.