Inactivation of a subpopulation of human neutrophils by exposure to ultrahigh-molecular-weight polyethylene wear debris

Wear of Ultra High Molecular Weight Polyethylene

Comparison of periprosthetic tissue digestion methods for ultra-high molecular weight polyethylene wear debris extraction.

There is considerable interest in characterization of wear debris from polyethylene (UHMWPE) bearing components used in total joint replacement. To isolate UHMWPE wear debris, tissue samples must be excised from regions adjacent to revised UHMWPE implant components, followed by exposure to one of many available tissue digestion methods. Numerous studies demonstrate successful digestion, but the...

Fixation of ultrahigh-molecular-weight polyethylene liners to metal-backed acetabular cups.

Locking mechanisms and metal-liner interface surfaces of six modular acetabular systems were evaluated to determine their effect on micromotion and backside wear of the polyethylene liner. Rotational and axial motion between the metal shell and polyethylene liner was measured in the Duraloc (DePuy, Warsaw, IN), Harris-Galante (Zimmer, Warsaw, IN), Impact (Biomet, Warsaw, IN), Lip Loc (Biomet), ...

Synthesis of high molecular weight polyethylene using FI catalyst

A FI Zr-based catalyst of bis[N-(3,5-dicumylsalicylidene)-2′,6′­diisopropylanilinato]zirconium(IV) dichloride was prepared and used for polymerization of ethylene. The effects of reaction conditions on the polymerization were examined in detail. The increase in ethylene pressure and rise in polymerization temperature up to 35 oC were favorable for catalyst/MAO to raise the catalytic activity as...

Applications of Ultrahigh Molecular Weight Polyethylene Fibres in Dentistry: A Review Article

Introduction: Ultra High Molecular Weight Polyethylene Fibre (UHMWPE) is one of the most versatile materials that have been introduced in dentistry. It proves to be a boon to the clinicians on accord of its valuable and multifarious applications pertaining to every field of dentistry such as prosthodontics, restorative dentistry, endodontics, paedodontics, orthodontics as well as periodontics. ...