Investigation on Conventional and Cross-linked UHMWPE Artificial Joint Biomaterials Using a BiotriboPOD Method
نویسندگان
چکیده
Investigation on Conventional and Cross-linked UHMWPE Artificial Joint Biomaterials Using a BiotriboPOD Method Jiajia Chen1, Fei Tang1, Zikai Hua1 1School of Mechatronics Engineering and Automation, Shanghai University, China. Corresponding Author: Zikai Hua, School of Mechatronics Engineering and Automation, Shanghai University, No. 149, Yanchang Rd, 200072Shanghai, PRChina. Tel: +86 5633 1517; Email: [email protected]
منابع مشابه
Advances in tribological testing of artificial joint biomaterials using multidirectional pin-on-disk testers.
The introduction of numerous formulations of Ultra-high molecular weight polyethylene (UHMWPE), which is widely used as a bearing material in orthopedic implants, necessitated screening of bearing couples to identify promising iterations for expensive joint simulations. Pin-on-disk (POD) testers capable of multidirectional sliding can correctly rank formulations of UHMWPE with respect to their ...
متن کاملAn augmented hybrid constitutive model for simulation of unloading and cyclic loading behavior of conventional and highly crosslinked UHMWPE.
Ultra-high molecular weight polyethylene (UHMWPE) is extensively used in total joint replacements. Wear, fatigue, and fracture have limited the longevity of UHMWPE components. For this reason, significant effort has been directed towards understanding the failure and wear mechanisms of UHMWPE, both at a micro-scale and a macro-scale, within the context of joint replacements. We have previously ...
متن کاملPotential for adhesive wear in friction couples of UHMWPE running against oxidized zirconium, titanium nitride coatings, and cobalt-chromium alloys.
The classical wear mechanisms abrasion, fatigue, and adhesion are the most frequent causes of surface changes of ultra high molecular weight polyethylene (UHMWPE) in artificial joints. The counterpart material has a strong influence on the wear and friction behavior of artificial joints due to its abrasive properties and adhesive interaction with UHMWPE. The formation of a transfer layer on the...
متن کاملThe effect of insert conformity and material on total knee replacement wear
The mean average life is increasing; therefore, there is a need to increase the lifetime of the prostheses. To fulfil this requirement, new prosthetic designs and materials are being introduced. Two of the design parameters that may affect wear of total knee replacements, and hence the expected lifetime, are the insert conformity and material. Computational models have been used extensively for...
متن کاملQuantification of the effect of cross-shear and applied nominal contact pressure on the wear of moderately cross-linked polyethylene.
Polyethylene wear is a great concern in total joint replacement. It is now considered a major limiting factor to the long life of such prostheses. Cross-linking has been introduced to reduce the wear of ultra-high-molecular-weight polyethylene (UHMWPE). Computational models have been used extensively for wear prediction and optimization of artificial knee designs. However, in order to be indepe...
متن کامل