Ceramic materials make hip replacement stronger

- Jul 06, 2020-

Over the past two decades, the use of ceramic materials for implanted devices has increased considerably. With an excellent combination of strength and toughness as well as biological inertness and low wear rate, a special type of oxide called zirconia is now replacing alumina in applications such as femoral heads for total hip replacement.

Zirconia shows twice the strength of alumina, so the diameter of the femoral head can be reduced to <26mm, resulting in less trauma to the patient during hip replacement surgery. Other applications that can benefit from zirconia implants include knee, shoulder, toe and spinal implants, and the material is also used for endoscopic components and pacemaker covers.