Results 301 to 310 of about 6,221,962 (352)
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Metal on Metal: Is It Worth the Risk?
The Journal of Arthroplasty, 2010There has been an explosion in the use of metal-on-metal bearings in the last 5 years throughout the world. This has mostly been driven by the use of metal bearings in resurfacing, although metal heads have also been used in conjunction with primary total hip arthroplasties.
Crawford, Ross +2 more
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The Chemical Record, 2010
AbstractThe synthesis and isolation of stable bimetallic complexes that contain formally quintuply bonded transition metals is a novel and emerging field of science. Efforts have been undertaken in designing and tuning the ligands to achieve a very short (actually the shortest) metal‐metal bond.
Awal, Noor, Rhett, Kempe
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AbstractThe synthesis and isolation of stable bimetallic complexes that contain formally quintuply bonded transition metals is a novel and emerging field of science. Efforts have been undertaken in designing and tuning the ligands to achieve a very short (actually the shortest) metal‐metal bond.
Awal, Noor, Rhett, Kempe
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Background of metal-on-metal resurfacing
Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 2006Hip resurfacing is not a new concept and attempts to treat hip arthritis without resecting the femoral head and neck have been made since the 1950s. The resurgence of new and better-engineered metal-on-metal bearings has provided the means to develop a viable prosthetic solution from a concept that was once abandoned.
H C, Amstutz, M J, Le Duff
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Metal-To-Metal and Metal Gasketed Seals
SAE Technical Paper Series, 1965<div class="htmlview paragraph">The parameters governing the leakage rate across metal-to-metal and metal gasketed seals are discussed qualitatively and quantitatively based on experimental evidence. The sensitivity of the sealing phenomenon to the surface finish of the mating components is illustrated. The results of several experiments in which
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Metal allergy and second‐generation metal‐on‐metal arthroplasties
Contact Dermatitis, 2011There are concerns about the induction of metal allergy with second‐generation metal‐on‐metal prostheses, and the role that this may play in the development of complications such as ‘pseudotumours’ or failure of the implant. In this review, we attempt to set out the current knowledge on this subject. From a review of the literature, it is apparent that
Philippa J, Cousen, David J, Gawkrodger
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Metal—lingad and metal—metal coupling elements
Journal of Photochemistry and Photobiology A: Chemistry, 1994Abstract The electronic matrix element coupling a ground and charge-transfer excited state can be calculated from the energy intensity of the appropriate charge-transfer transition. An expression for the electronic coupling element widely used for this purpose is based on equations derived by Mulliken and Hush for an effective two-state model and is ...
Carol Creutz +2 more
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Reactivity of Metal-Metal Bonds
Journal of Organometallic Chemistry, 1972Abstract The reactivity of Me 3 SnMn(CO) 5 , (CH 2 CHCH 2 ) 3 SnMn(CO) 5 , Me 3 SnFeCp(CO) 2 , and Me 2 Sn[FeCp(CO) 2 ] 2 has been investigated with respect to iodine, organomercury chlorides, trialkyl- and triarylchlorosilane, inorganic chlorides (SiCl 4 , SnCl 4 , TiCl 4 , ZnCl 2 , HgCl 2 ) and Mn 2 (CO) l0 .
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METAL/METAL ARTICULATING INTERFACES
Orthopedics, 1995Polyethylene wear can be shown as a problem in long-term joint replacement. Metal-on-metal bearing is solving this problem, as long-term clinical and experimental investigations demonstrate. To avoid the problem of high friction found in old series, a new Metasul called technique with a smaller diameter was invented.
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The Bone & Joint Journal, 2013
Metal-on-metal bearing related issues in hip replacement and resurfacing continue to generate discussion, concern, audit and research as there are still many unknowns and clarity is required regarding the future implantation of such devices and the follow-up and investigation of patients with metal-
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Metal-on-metal bearing related issues in hip replacement and resurfacing continue to generate discussion, concern, audit and research as there are still many unknowns and clarity is required regarding the future implantation of such devices and the follow-up and investigation of patients with metal-
openaire +2 more sources