نتایج جستجو برای: bone cements
تعداد نتایج: 309197 فیلتر نتایج به سال:
The setting time and mechanical properties of cements are a major technical concern for long in civil engineering. More recently those practical problems became biomedical applications -in bone surgery dentistry- particular concerning the which should be minimized. possibility to add organic additives interact with different constituting ions constitutes way modify kinetics. We made assumption ...
The efficacy of locally implanted antibiotic-calcium hydroxyapatite ceramic composites was investigated for the treatment of experimentally produced, implantrelated osteomyelitis in rats. High concentrations of antibiotics were detected at the site of infection and bacteria were eradicated without removal of the metal implants. Parenteral antibiotics and surgical debridement, alone or in combin...
The high stiffness of bone cements used in vertebroplasty has been hypothesised to contribute to the propensity of adjacent vertebral fractures after treatment. Therefore, new low-modulus cements have been developed; however, there are currently no studies assessing the biomechanical aspects of vertebroplasty with these cements in an ex vivo non-prophylactic model. In this study, we induced wed...
The injectability of Portland cement (PC) with several citrate additives was investigated for use in clinical applications such as vertebroplasty (stabilization of a fractured vertebra with bone cement) using a syringe. A 2-wt % addition of sodium or potassium citrate with PC significantly improved cement injectability, decreased cement setting times from over 2 h to below 25 min, while increas...
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