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Hip prosthesis zones. Zones of a hip prosthesis, by the DeLee and Charnley system, [1] and the Gruen system. [2] After hip replacement, hip prosthesis zones are regions in the interface between prosthesis material and the surrounding bone. These are used as reference regions when describing for example complications including hip prosthesis ...
Hip prosthesis displaying aseptic loosening (arrows) Hip prosthesis zones according to DeLee and Charnley, [39] and Gruen. [40] These are used to describe the location of for example areas of loosening. On radiography, it is normal to see thin radiolucent areas of less than 2 mm around hip prosthesis components, or between a cement mantle and bone.
DOI: 10.1016/j.arth.2009.05.018. ISSN 08835403. Author. Mikael Häggström. Other versions. File:Hip prosthesis zones by DeLee and Charnley system, and Gruen system.svg is a vector version of this file. It should be used in place of this JPG file when not inferior. File:Hip prosthesis zones by DeLee and Charnley system, and Gruen system.jpg → ...
The bone cement fills the free space between the prosthesis and the bone and plays the important role of an elastic zone. This is necessary because the human hip is acted on by approximately 10–12 times the body weight and therefore the bone cement must absorb the forces acting on the hips to ensure that the artificial implant remains in ...
Orthopedic implant example seen with X-ray. 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]
Hip resurfacing has been developed as a surgical alternative to total hip replacement (THR). The procedure consists of placing a cap (usually made of cobalt-chrome metal), which is hollow and shaped like a mushroom, over the head of the femur while a matching metal cup (similar to what is used with a THR) is placed in the acetabulum (pelvis socket), replacing the articulating surfaces of the ...
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