â Christian name â forename â given name. 1. 'first name'. Your first name is the name that was given to you when you were born. Your first name comes in front of your surname. At some point in the conversation Brian began calling Philip by his first name. In British English, people sometimes use Christian name instead of first name.
The intervertebral fusion cage is a large, hollow cylinder made of some type of metal, usually titanium. It is designed as a cage so that bone graft can be placed inside the hollow cylinder to allow a spinal fusion to occur between two vertebrae.
Article continues below. While most cages are placed through an ALIF, they can also be placed in the back of the spine (posterior lumbar interbody fusion or PLIF) through a midline incision in the back (see Figure 2).In This Article: 1  Spine Fusion Instrumentation. 2  Pedicle Screws for Spine Fusion.rticle continues below. While most cages are placed through an ALIF, they can also be placed in the back of the spine (posterior lumbar interbody fusion or PLIF) through a midline incision in the back (see Figure 2).