Ceramic femoral headFemoral head fractureBiomechanics of femoral headBackgroundZirconium ceramics are one of the most controversial prosthetic biomaterials with good mechanical properties on the one hand, but early failure incidents on the other hand. A case of an early failure of zirconia femoral head...
The Radiation Health Committee of the National Health and Medical Research Council of Australia consider that magnesia partially stabilised zirconia femoral heads made from these powders would pose very little hazard to surrounding tissue. Radiation Absorption In a dense ceramic, almost all the radiation...
A similar evaluation based on MAJ theory was made by other authors for a commercial femoral head made of zirconia-toughened alumina matrix composite (ZTA) with the trade name of BIOLOX delta (CeramTec AG, Plochingen, Germany), which is presently one of the most advanced ceramic femoral heads....
hip;arthroplasty;prosthesis;failure;ceramic 】[c 0DU伽 0N Aseptaclooseningremainstobetheprmaarycanseof ‘一 long-termfailureaftertotalhiparthroplastyL22J . eproductionofsubmicronpolyethylenedebrisinduced bytheabrasiveweal"ofpolyethylenedirectlyagainstthe femoralheadorinducedbvttlirdbodieshasbeenshown t0 be res...
Starting in June 2000, a new alumina matrix nanocomposite material (BIOLOX Delta, CeramTec, Plochingen, Germany) has been available as a femoral head material [101]. This ceramic biomaterial is now broadly used across the orthopedic industry in both femoral heads and acetabular liners. According ...
hip, wear analysis, ceramic, polyethylene, zirconiaConcerns have arisen regarding deterioration of wear properties of yttria-stabilized zirconia (YSZ) femoral head on conventional polyethylene (PE) bearings due to YSZ phase transformation. The purpose...
Comparative study of the wear of UHMWPE with zirconia ceramic and stainless steel femoral heads in artificial hip joints. The wear of ultra high molecular weight polyethylene (UHMWPE) when sliding against zirconia ceramic and stainless steel counterfaces has been compared in a... B Derbyshire,J ...
Wear of yttria-zirconia (zirconia) in the femoral head was investigated in mature mongrel dogs weighing 10 to 13 kg. Two dogs, which were used as a control group, were sacrificed 18 months after implantation of the uncemented modular hip system with an alumina ceramic (alumina) femoral head...
Several examples of design optimisation of zirconia ceramic heads using both finite element analysis and burst tests on metallic trunnions are presented. It has been shown that trunnion/head angle mismatch lower than 20' do not influence the femoral head fracture strength. Because of the lower ...
This work aimed to prepare a composite with a polyamide (PA) matrix and surface-modified ZrO2 or Al2O3 to be used as ceramic fillers (CFs). Those composites contained 30 wt.% ceramic powder to 70 wt.% polymer. Possible applications for this type of compo