Wear in metal-on-metal total disc arthroplasty
نویسندگان
چکیده
منابع مشابه
Catastrophic wear in a metal-on-ceramic total hip arthroplasty.
A 51-year-old woman came to our clinic 6 months after a right total hip arthroplasty. She had noticed a slowly growing mass in the proximal thigh and referred progressive pain in the right groin. Plain radiography revealed premature acetabular cup aseptic loosening, and in the computed tomography study, a 14-cm-diameter mass was observed. Revision surgery was performed, showing a metal-on-ceram...
متن کاملWear Outcomes of a Metal on Metal Disc Arthroplasty – A Computational Model
Earlier efforts in areas of hip and knee arthroplasties suggest that wear debris, could initiate inflammatory responses leading to peri-prosthetic osteolysis and bone resorption at the implant-bone interface. Aseptic loosening of implants due to particle induced osteolysis is the primary cause of revision surgeries. Bench top wear tests as well as bioreactivity studies have emerged as a powerfu...
متن کاملPainful metal-on-metal total hip arthroplasty.
Two patients were evaluated for the possibility of hypersensitivity to a Metasul articulation (Centerpulse, Austin, Tex) coupled with total hip arthroplasty. Serum was tested with a lymphocyte proliferation assay, and the capsular tissues from the hip were examined for perivascular lymphocytes. The diagnosis of hypersensitivity to Metasul could not be confirmed in these patients, and ultimately...
متن کاملMetal in Total Hip Arthroplasty: Wear Particles, Biology, and Diagnosis.
Total hip arthroplasty (THA) has been performed for nearly 50 years. Between 2006 and 2012, more than 600,000 metal-on-metal THA procedures were performed in the United States. This article reviews the production of metal wear debris in a metal-on-metal articulation and the interaction of cobalt and chromium ions that ultimately led to a dramatic decline in the use of metal-on-metal THA articul...
متن کاملFriction in metal-on-metal total disc arthroplasty: effect of ball radius.
Total disc arthroplasty (TDA) can be used to replace a degenerated intervertebral disc in the spine. There are different designs of prosthetic discs, but one of the most common is a ball-and-socket combination. Contact between the bearing surfaces can result in high frictional torque, which can then result in wear and implant loosening. This study was designed to determine the effects of ball r...
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ژورنال
عنوان ژورنال: Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine
سال: 2013
ISSN: 0954-4119,2041-3033
DOI: 10.1177/0954411912471768