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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 loosening on medical imaging.
Hip prosthesis displaying aseptic loosening (arrows) Hip prosthesis zones according to DeLee and Charnley, [42] and Gruen. [43] 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.
Aseptic joint loosening, crystal arthropathy, rheumatoid arthritis: Prevention: Antibiotic prophylaxis prior to joint replacement surgery: Treatment: Systemic and local antibiotics, joint replacement revision, debridement: Medication: Antibiotics: Frequency: Approximately 2% of hip and knee replacements
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 resorption of living ...
Basic aseptic procedures includes hand washing, donning protective gloves, masks and gowns, and sterilizing equipment and linens. [12] Medical aseptic techniques also includes curbing the spread of infectious diseases through quarantine, specifically isolation procedures based on the mode of disease transmission. [ 12 ]
Hip resurfacing is 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 similarly to the cap of 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 ...
[medical citation needed] For example, a hip joint that is affected by osteoarthritis may be replaced entirely (total hip arthroplasty) with a prosthetic hip. This would involve replacing both the acetabulum (hip socket) and the head and neck of the femur. The purpose of this procedure is to relieve pain, to restore range of motion and to ...
Cases of avascular necrosis have been identified in a few high-profile athletes. It abruptly ended the career of American football running-back Bo Jackson in 1991. Doctors discovered Jackson to have lost all of the cartilage supporting his hip while he was undergoing tests following a hip injury he had on the field during a 1991 NFL Playoff ...