People who are sensitive to the nickel used in metal implants might get the ceramic type.
Ceramic implants for knees.
Trevor north orthopedic surgeon most surgeons use one style of implant for a significant majority of knee replacement cases.
Zirconium alloy is used in a new ceramic knee implant.
Biolox delta ceramic is a composite matrix material containing 82 volume alumina al 2 o 3 and 17 volume zirconia zro 2.
The lower end of the femur.
These materials do not wear out easily but they will not last forever.
Biolox delta ceramic knee.
The zirconium alloy is combined with an all plastic tibial component replacing the metal tray and plastic insert used in other knee replacements.
Based on the successful use of ceramic components in hip replacement one manufacturer has developed a ceramic implant for the knee.
It also rides on a plastic spacer.
Implants are made of metal alloys ceramic material or strong plastic parts.
Ceramic knee replacement is also conducted in some parts of the world but it is not that successful and durable in the case of all patients.
The knee replacement implant parts are made of metal medical grade plastic or ceramic.
While some people may have knee replacements that may last for decades some may require a second surgery called revision knee replacement surgery just a few years later.
Stainless steel knee implants are also available however its use has mostly been taken over by other alloy implants.
In saying this ceramic implants are more costly and can be more susceptible to fracturing since the material is brittle.
Titanium only implants are available for patients who are allergic to nickel but it is more difficult to obtain the highly polished surface that facilitates smooth motion with titanium than it is with cobalt chrome.
The metal femoral component curves around the end of the femur thighbone.
Up to three bone surfaces may be replaced in a total knee replacement.
This composite ceramic was developed to overcome the disadvantageous aging of zirconia and the relatively low fracture toughness of alumina.