In order to enhance the joint performance of Ti6Al4V titanium alloy (TC4) and ultra-high molecular weight polyethylene (UHMWPE) for biomedical applications, different structures were fabricated on TC4 surfaces via electron beam melting (EBM) method in this study. Macromorphologies microinterfaces TC4–UHMWPE joints produced hot pressing technique carefully characterized analyzed. The effects sur...

Introduction Long-term success of total knee arthroplasty (TKA) is a multifactorial issue. Implant design and materials selection play an important role in the wear-related performance of TKA. It is widely recognized that excessive wear of UHMWPE tibial inserts can result in mechanical implant instability and, in some instances, catastrophic wear. However, the more harmful effect occurs with ti...

Introduction It is well known that the wear resistance of ultra-high molecular weight polyethylene (UHMWPE) improves in proportion to the crosslinking irradiation dose. It is also well known that the mechanical properties and oxidative stability of UHMWPE are affected by the irradiation dose, resin type, and post-irradiation heat treatment, among others factors. Therefore, careful consideration...

This study comparatively analyzed the behavior of elastic properties by aspect ratio ultra-high molecular weight polyethylene (UHMWPE) fibers that are added when creating a composite material polypropylene and UHMWPE. The volume fraction (VF) UHMWPE to was fixed at 5%. were lumped for analysis according oriented on matrix; they using Halpin–Tsai model, which involves theoretical approach finite...

The paper presents an in-depth study of the bio-tribological performance on silicon nitride matrix ceramic composites containing hexagonal boron (hBN) with different content. Ultra-high molecular weight polyethylene (UHMWPE) under simulated body fluid lubrication, and fluid-lubricated sliding tests were performed a universal friction wear tester. results showed that incorporation hBN into reduc...

PURPOSE OF STUDY Aseptic loosening of total joint replacement (TJR) due to wear of ultra-high molecular weight polyethylene (UHMWPE) is regarded as one of the major problems in the field of arthroplasty. This work describes a newly developed method, called MORF, which completely describes the morphology of UHMWPE wear particles. The differences in wear particle morphology may help to elucidate ...

Introduction: A Vitamin E-stabilized, radiation cross-linked UHMWPE was developed to maintain oxidative resistance while eliminating the need for post-irradiation melting, which can result in lowered fatigue strength [1]. While diffusion after irradiation is used for introducing Vitamin E into UHMWPE, blending Vitamin E with UHMWPE resin and subsequently irradiating the consolidated mixture is ...

The impact response of body armor composed of a ceramic plate with an ultrahigh molecular weight polyethylene (UHMWPE) fiber-reinforced composite and layers of UHMWPE fibers shielding a block of ballistic gelatin has been experimentally and numerically analyzed. It is a surrogate model for studying injuries to human torso caused by a bullet striking body protection armor placed on a person. Pho...

Cross-linked polyethylenes are being introduced widely in acetabular cups in hip prostheses as a strategy to reduce the incidence of wear debris-induced osteolysis. It will be many years before substantial clinical data can be collected on the wear of these new materials. Silane cross-linked polyethylene (XLPE) was introduced into clinical practice in a limited series of acetabular cups in 1986...

BACKGROUND Tibial eminence fractures occur most commonly in skeletally immature children. Several techniques using physeal-sparing fracture fixation have been described, but their structural properties have not been evaluated. PURPOSE To determine the strength and resistance to displacement of physeal-sparing techniques used to fix tibial eminence fractures. STUDY DESIGN Controlled laborato...