Results 151 to 160 of about 44,762 (212)

Acrylic Bone Cements

2002
In the early sixties Sir John Charnley presented the preliminary results of a new method for the fixation of joint prostheses to bone (Charnley 1964a,b, 1970). The idea was to distribute the contact stresses between the implant and the bone over a large area by means of a filler material, called bone cement and consisting in self-curing ...
Maria-Pau Ginebra, Francisco-Javier Gil, Josep-Anton Planell   +2 more
openaire   +1 more source

A proposed specification for acrylic bone cement

Journal of Biomedical Materials Research, 1975
AbstractA proposed specification covering handling characteristics and physical and chemical properties of bone cement composed primarily of methyl methacrylate has been prepared on the basis of data from the authors' studies and from various other sources. Under handling characteristics, requirements included relate to dough, handling and setting time,
S S, Haas, G, Dickson, G M, Brauer
openaire   +2 more sources

Study on the poly(methyl methacrylate-acrylic acid)/calcium phosphate cement composite bound by chelation with enhanced water absorption and biomechanical properties.

Journal of The Mechanical Behavior of Biomedical Materials, 2023
Polymethylmethacrylate (PMMA) bone cement has been widely used as a critical material for fixing prostheses and filling bone defects. The shrinkage of PMMA bone cement was addressed by the additives, however, the uneven integral water absorption and ...
Lei Chen, Shitong Zhang, Bo Zhang, Qian Liang, Dong Luo, Xiaojiao Yu, Binghua Yao, Kang Zhao, Zhao Yang, Yufei Tang, Zixiang Wu   +10 more
semanticscholar   +1 more source

On the Setting Properties of Acrylic Bone Cement

The Journal of Bone & Joint Surgery, 1973
In the one batch of methylmethacrylate tested the surface of the setting cement never exceeded 70 degrees centigrade while the setting time was prolonged by lowering the ambient temperature, decreasing the powder to liquid ratio, and increasing the mass of cement.
P R, Meyer, E P, Lautenschlager, B K, Moore   +2 more
openaire   +2 more sources

The safety of acrylic bone cement

Injury, 1973
Summary A study is made of 806 cases of femoral neck fracture and osteoarthritis in which Thompson prosthesis or McKee-Farrer artificial hip joints were implanted. The mortality and morbidity were analysed, with special attention to the effects of using acrylic cement.
openaire   +2 more sources

Flow Characteristics of Acrylic Bone Cements

Clinical Orthopaedics and Related Research, 1984
Flow properties of Simplex, Zimmer Regular, Zimmer LVC, and Sulfix bone cements were measured as functions of time between two and five minutes after mixing. The mass flowrates measured for Zimmer Regular and Simplex were quite similar in the temperature range of 20.0 degrees -23.3 degrees.
K L, Markolf, J M, Kabo, D W, Stoller, S A, Zager, H C, Amstutz   +4 more
openaire   +2 more sources

Viscoelastic behaviour of acrylic bone cements

Biomaterials, 1998
Local contact stresses at the bone-cement interface are thought to play an important role in the initiation of component loosening. A reduced-modulus bone cement can lower these local contact stresses. The viscoelastic properties of such a cement raised the question of long term subsidence of the implant system.
D N, Yetkinler, A S, Litsky
openaire   +2 more sources

Silanized graphene oxide as a reinforcing agent for acrylic bone cements: physicochemical, mechanical and biological characterization

Journal of Biomaterials Science. Polymer Edition, 2021
Recently, different carbon-based nanomaterials have been used as reinforcing agents in acrylic bone cement formulations. Among them, graphene oxide (GO) has attracted the attention of scientific community since it could improve not only the mechanical ...
Baptiste Levenez, Tania Gil-Cortes, N. Rodríguez-Fuentes, J. Jiménez, W. Herrera-Kao, M. Loría-Bastarrachea, A. May-Pat, C. Guerrero-Bermea, J. Uribe‐Calderon, J. M. Cervantes-Uc   +9 more
semanticscholar   +1 more source

The effect of ethanol on acrylic bone cement

International Journal of Pharmaceutics, 2002
Prosthesis loosening is a major problem associated with the use of poly(methyl methacrylate) (PMMA) bone cement that may be related to a peri-implant vacuolisation commonly observed at bone-cement interface. Methyl methacrylate (MMA) monomer may be one of the cement components partly responsible for the mentioned vacuolisation due to a cytotoxic effect
Bettencourt, A, Calado, A, Amaral, J, Vale, FM, Rico, JMT, Monteiro, J, Montemor, MF, Ferreira, MGS, Castro, M   +8 more
openaire   +3 more sources

Surface studies on acrylic bone cement

International Journal of Pharmaceutics, 2004
Poly(methyl methacrylate) (PMMA) is used to fill the gap between the prosthesis and the surrounding bone in cemented arthroplasties. Biocompatibility problems related to bone cement application limit the clinical success of these cemented arthroplasties.
Bettencourt, A, Calado, A, Amaral, J, Alfaia, A, Vale, FM, Monteiro, J, Montemor, MF, Ferreira, MGS, Castro, M   +8 more
openaire   +3 more sources