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The analysis of 402,051 hip replacements showed that 6.2% of metal-on-metal hip implants had failed within five years, compared to 1.7% of metal-on-plastic and 2.3% of ceramic-on-ceramic hip implants.
A titanium hip prosthesis, with a ceramic head and polyethylene acetabular cup. Ceramics are now commonly used in the medical fields as dental and bone implants. [8] [9] Surgical cermets are used regularly. Joint replacements are commonly coated with bioceramic materials to reduce wear and inflammatory response.
Joint replacement is a procedure of orthopedic surgery known also as arthroplasty, in which an arthritic or dysfunctional joint surface is replaced with an orthopedic prosthesis. Joint replacement is considered as a treatment when severe joint pain or dysfunction is not alleviated by less-invasive therapies. Joint replacement surgery is often indicated from various joint diseases, including ...
A metal implant is placed within the femur, and a ceramic ball is attached to it. When these parts are put together, the ball fits into the plastic liner inside the socket.
There are hip resurfacing components that have a ceramic coating on metal femoral head component and cross linked polyethylene plastic as a liner for the socket or cup area making it not metal on metal. The plastic sleeve can be replaced if needed without removing the main components. [citation needed]
Su, an orthopedic surgeon who specializes in a hip resurfacing procedure that has helped pro athletes return to top form, operated June 1 on Kane's right hip at the Hospital for Special Surgery in ...
This includes dental replacements and bone joining or replacements for medical and clinical application. Therefore, their mechanical properties are very important. Mechanical properties of some biomaterials and bone are summarized in Table 1. [2] Among them, hydroxyapatite is most widely studied bioactive and biocompatible material.
Hot isostatic pressing. Hot isostatic pressing ( HIP) is a manufacturing process, used to reduce the porosity of metals and increase the density of many ceramic materials. This improves the material's mechanical properties and workability. The process can be used to produce waste form classes.
An orthopedic implant is a medical device manufactured to replace a missing joint or bone, or to support a damaged bone. [1] The medical implant is mainly fabricated using stainless steel and titanium alloys for strength and the plastic coating that is done on it acts as an artificial cartilage. [2] The biodegradable metals in this category are magnesium-based [3] and iron-based alloys, though ...
There are several biological mechanisms which may lead to osteolysis. In total hip replacement, the generally accepted explanation [1] for osteolysis involves wear particles (worn off the contact surface of the artificial ball and socket joint ). As the body attempts to clean up these wear particles (typically consisting of plastic or metal), it triggers an autoimmune reaction which causes ...