The neck of prosthesis is a component of a prosthetic hip. An artificial or prosthetic hip is often used for fractures or severe arthritis. The acetabulum, a cup-shaped depression at the base of the hipbone (into which the ball-shaped head of the femur fits, forming a ball and socket joint), is drilled out and replaced with an artificial socket and the femoral prosthesis is similar in design to the Continue Scrolling To Read More Below...