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Medical uses. Total hip replacement is most commonly used to treat joint failure caused by osteoarthritis.Other indications include rheumatoid arthritis, avascular necrosis, traumatic arthritis, protrusio acetabuli, certain hip fractures, benign and malignant bone tumors, arthritis associated with Paget's disease, ankylosing spondylitis and juvenile rheumatoid arthritis.
Hip replacement failure. Hip replacement implants can fail. Outcomes are normally recorded in a joint replacement registry to ensure patterns are picked up upon. In 2013 Johnson & Johnson shared documents which indicated that 40% of a class of hip replacement implants which it manufactured had failed. Pacemaker failure
Specialty. Orthopedics. Osteolysis is an active resorption of bone matrix by osteoclasts and can be interpreted as the reverse of ossification. Although osteoclasts are active during the natural formation of healthy bone the term "osteolysis" specifically refers to a pathological process. Osteolysis often occurs in the proximity of a prosthesis ...
Metallosis. Metallosis is the medical condition involving deposition and build-up of metal debris in the soft tissues of the body. [1] Metallosis has been known to occur when metallic components in medical implants, specifically joint replacements, abrade against one another. [1] Metallosis has also been observed in some patients either ...
DePuy identified reasons for the failure of the hip replacement system as component loosening, component malalignment, infection, fracture of the bone, dislocation, metal sensitivity and pain. Additional complications from the hip replacement system may include increased metal ion levels in the blood, bone staining, necrosis, swelling, nerve ...
Implant failure may occur; the metal screws and plate can break, back out, or cut out superiorly and enter the joint. This occurs either through inaccurate implant placement or if the fixation does not hold in weak and brittle bone. In the event of failure, the surgery may be redone or changed to a total hip replacement. Mal-positioning: The ...
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