Results 181 to 190 of about 2,185 (215)
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THE CARDIOVASCULAR EFFECTS OF METHYLMETHACRYLATE
Survey of Anesthesiology, 1975The effects of the liquid component of commercial acrylic cement and of pure methylmethacrylate monomer on mean arterial blood pressure, central venous pressure, heart rate and cardiac output have been compared in a series of six anaesthetised dogs. No significant differences were found between the two substances.
James Mulvein, Richars H. Ellis
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Polymerisation control in casting of methylmethacrylate [PDF]
Polymer International, 1993 AbstractThis paper reports a technique for the controlled bulk polymerisation of methylmethacrylate initiated by benzoyl peroxide. Due to the high exothermic nature of this polymerisation process, casting of thin sheets and profiles must generally be carried out at relatively low temperatures and over extended intervals of time at a constant rate ...
RAMASESHAN, V +2 more
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Methylmethacrylate upper ureteral obstruction
Urology, 1986A case of upper ureteral obstruction caused by methylmethacrylate cement after fixation of an L2-L3 vertebral fracture is reported. The probable mechanism, radiographic findings, and management of this complication are reviewed.
Steven A. Katz +3 more
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Methylmethacrylate as an adjunct in spinal instrumentation
The Journal of Bone & Joint Surgery, 1977Sixteen patients with scoliosis were treated with Harrington-rod instrumentation supplemented by methylmethacrylate fixation at the distraction sites to reduce the possibility of dislodgement of a hook due to inferior bone stock or the patients' inability to cooperate postoperatively because of mental insufficiency or involuntary-movement disorders ...
EG Dawson, LD Herron
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Methylmethacrylate and Atrioventricular Conduction in Dogs
Acta Anaesthesiologica Scandinavica, 1984The effect of intravenous methylmethacrylate (MMA) on atrioventricular conduction times was studied in dogs, utilizing His‐bundle electrograms. Dogs were anesthetized with halothane or enflurane; then MMA in a dose causing minimal to profound hemodynamic changes was administered and His‐bundle electrograms, and arterial, pulmonary artery, and central ...
C. Lee Parmley, D. L. Brown
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Methylmethacrylate Metabolism in Man
Clinical Orthopaedics and Related Research, 1979Methylmethacrylate, the monomeric component of the polymethylmethacrylate cement used in orthopedic surgery, has been shown to undergo hydrolysis to methacrylic acid during hip replacement operations. Circulating levels of methacrylic acid were comparable with those of methylmethacrylate.
Jeffrey A. Corkill +3 more
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Methylmethacrylate is a mutagen for Salmonella typhimurium.
The Journal of Bone & Joint Surgery, 1979The long-term effects of exposure to monomeric methylmethacrylate have yet to be established. We have measured the toxicity and mutagenicity of methylmethacrylate for Salmonella typhimurium. At levels of thirty-four millimolar, methylmethacrylate exhibited 28 per cent of the mutagenic activity of an equimolar dose of dimethylnitrosamine ...
William G. Thilly +2 more
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The hardnesses of poly(methylmethacrylate)
Tribology International, 1996The paper describes an experimental study of the normal and scratch hardnesses of a poly(methylmethacrylate). The deformations have been introduced using hard steel cones of a range of included cone angles. The influence of the state of interfacial lubrication is examined and rationalized.
Briscoe, BJ +3 more
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Local neurotoxicity of methylmethacrylate monomer
Toxicology Letters, 1983A technique was devised which allowed a controlled exposure to methylmethacrylate liquid on rat tail skin. The procedure was repeated 3 h daily for 8 weeks. This caused keratolysis without ulcerations in the exposed skin and abnormal muscle responses to stimulation of the rat tail motor nerves by a skin electrode through the treated area after 4 weeks ...
R. Rajaniemi +2 more
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The Effect of Methylmethacrylate on Complement Activity
Clinical Orthopaedics and Related Research, 1977The effect of methylmethacrylate on the activity of the complement sequence has been investigated in vitro by standard hemolysis techniques. It was demonstrated that concentrations of methylmethacrylate monomer as low as .25% inhibit the reactions of the complement sequence by 50%.
William Petty, J. R. Caldwell
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