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.
The same materials are used for hip implantsâthe stem portions of most hip implants are made of metal alloys, the ball portions are made from metal alloys or polished ceramic, and the acetabular sockets are made from metal, polyethylene (plastic), a combination of polyethylene backed by metal, or ceramic.