In these hip joints the traditional metal ball and polyethylene liner are replaced by a high strength ceramic bearing that has the reputation for ultra low wear performance.
Metal on polyethylene hip replacement.
The socket or acetabular liner is usually made of this plastic.
The bearing surface of this ball and socket can be made from a number of different materials including a metal ball and a plastic polyethylene cup.
Ceramic on metal com ceramic on ceramic coc ceramic on polyethylene cop ceramic hips are made of specialized and more durable versions of the same type of material that plates and bowls are made from.
There are no fda approved metal on metal total hip replacement.
Nevertheless metal on polyethylene still remains the second most popular hip.
Metal on polyethylene is one of the least desirable hip replacement devices besides metal on metal.
Polyethylene and metal on polyethylene mop polyethylene is a high quality metal free plastic.
Historically the femoral head was quite small in large part because that means less surface area to rub between the ball and the socket leading to lower.
The most commonly used metals used include titanium and stainless steel.
Clinical studies monitored by the fda and begun in 1998 have demonstrated excellent performance although it should be noted that ceramic has been used in hip.
A traditional hip replacement implant uses a metal femoral head the ball of the implant and conventional polyethylene or plastic as the acetabular component the socket of the implant.
The plastic is called.
Both the ball and the socket of the hip joint are replaced with a metal implant and a plastic spacer is placed in between.
In addition other components can be made of metal and covered with plastic.
Metal and plastic implants.
What is a metal on plastic hip replacement.
A prosthetic made of metal and plastic are the most commonly used hip replacement implants.
Both metal and polyethylene are subject to wear particles and the plastic and metal contaminants that will envelope your entire joint are a cause for concern.
During a hip replacement your damaged hip joint will be replaced with an artificial ball and socket.
This artificial joint prosthesis helps reduce pain and improve function.