Ceramic Ball Metal Stem Hipo Replaccement

The metal taper shown in the figure has a typical defect it does not meet the straightness requirement.

Ceramic ball metal stem hipo replaccement.

Ceramic is one of the best materials that can be used in a hip replacement but when paired with a metal socket it quickly falls to the back of the pack. Ceramic hip implants are among the newer types of prostheses being used for hip replacement offering greater resistance to damage and smooth movement of the joint. 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. Ceramic hip implants are designed to be the most resistant to wear of all available hip replacement implants.

The safety of hip replacement systems is influenced by for example the materials of the ball and stem or taper the method of joining heir shape and the state of their surfaces. A ceramic femoral head with a polyethylene cup lining ceramic on poly a ceramic femoral head and a ceramic lining ceramic on ceramic in addition during june 2011 the fda approved a new ceramic on metal system. A ceramic hip replacement will be made of either. Hip replacement devices break into a few big categories.

Ceramic hip replacement implants also use metal parts that fit within the bone but the bearing surface the ball and the socket can be made of the ceramic material. The new hip system is the first to combine a ceramic ball and a metal socket. Previous total hip replacement systems approved by the fda have used various combinations of metal ceramic and the. They wear even less than the metal on metal implants.

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 replacements for many years prior to that. In most cases the femoral stem component is built from titanium titanium cobalt stainless steel cobalt chromium alloys or a titanium and cobalt mixed metal. Metal on metal mom these are what they sound like. What materials are used in a hip replacement.

Both the socket and the ball are made of stainless steel titanium chromium cobalt or some combination of these. Artificial replacement parts can be made of strong plastic metal or ceramic. These factors and specifiations for manufacturers and in the operating theater are briefly reviewed.