Nano-Indentation Response of Ultrahigh Molecular Weight Polyethylene (UHMWPE): A Detailed Analysis

Notch fatigue of ultrahigh molecular weight polyethylene (UHMWPE) used in total joint replacements.

Ultrahigh molecular weight polyethylene (UHMWPE) has remained the primary polymer used in hip, knee and shoulder replacements for over 50 years. Recent case studies have demonstrated that catastrophic fatigue fracture of the polymer can severely limit device lifetime and are often associated with stress concentration (notches) integrated into the design. This study evaluates the influence of no...

Biomechanical Properties of Dispersep Article Reinforced Polymer Composites on Ultrahigh Molecular Weight Polyethylene (UHMWPE)

Ultrahigh molecular weight polyethylene (UHMWPE) having a low coefficient of friction (CoF), high wearand chemical resistance in harsh environments, is used for fabricating medical products (hip and knee joints, intervertebral discs, plates for maxillofacial surgery, and others). Priority of polymers, in particular UHMWPE to be applied as medical implant materials, is due to their proximity to ...

Drawing Behavior of Ultrahigh Molecular Weight Polyethylene (uhmwpe) Fibers in Supercritical C02

Synthesis and Tribological Behavior of Ultra High Molecular Weight Polyethylene (UHMWPE)-Lignin Composites

In this paper, we report the synthesis and characterization of ultra-high molecular weight polyethylene (UHMWPE)-lignin composites. During this study four different compositions, namely UHMWPE, UHMWPE-13 wt. % lignin, UHMWPE-25 wt. % lignin and UHMWPE-42.5 wt. % lignin were fabricated by hot pressing. Detailed microstructural studies by scanning electron microscopy (SEM) showed that UHMWPE and ...

Ultra high molecular-weight polyethylene (UHMWPE) in total knee replacement: fabrication, sterilisation and wear.

THE JOURNAL OF BONE AND JOINT SURGERY G. Blunn, PhD, Professor The Centre for Biomedical Engineering, Institute of Orthopaedics, Brockley Hill, Stanmore, Middlesex HA7 4LP, UK. E. M. Brach del Preva, MD, Associate Professor Department of Traumatology and Orthopaedics, University of Turin, Via Zuretti 29, 10126 Turin, Italy. L. Costa, PhD, Professor IFM Chemistry Department, University of Turin,...