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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 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-Metal Bonds and Transition-Metal Clusters
2023Abstract This chapter covers the topics for bond valence and bond number of transition-metal clusters, dinuclear complexes containing metal-metal bonds, clusters with more than two transition metal atoms, so-bond valence and iso-structural series, metal-metal interactions, comproportionation reactions, disproportationation reactions.
Thomas Chung Wai Mak +3 more
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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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(iv) Metal-on-metal hip resurfacing
Current Orthopaedics, 2002The management of an arthritic hip in young active Patients represents a challenge to the treating orthopaedic surgeon. Results of the conventional hip arthroplasty in male patients under 55 have bee shown to approach 70% survivorship at 10 years,(1) Hip resurfacing has many theoretical advantages including bone preservation, reduced risk of ...
Ebied, A, Journeaux, S
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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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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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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-
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Assessing the Strength of Metal–Metal Interactions
Inorganic Chemistry, 2019A proper comparison between bond strengths of different atom pairs is relevant only for the same formal bond order (BO) of atomic interactions, e.g., for single bonds, because it is clear that the higher is the BO or the number of the electron pairs responsible of bonding, the stronger is the bond. For the metal-metal interactions, such a comparison of
Elena Levi, Doron Aurbach, Carlo Gatti
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